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<li class="toctree-l2"><a class="reference internal" href="../incoming/request.html">Request Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/incomingrequest.html">IncomingRequest Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/content_negotiation.html">Content Negotiation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/methodspoofing.html">HTTP Method Spoofing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/restful.html">RESTful Resource Handling</a></li>
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</ul>
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<li class="toctree-l1"><a class="reference internal" href="../outgoing/index.html">Building Responses</a><ul>
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</ul>
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</li>
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</ul>
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<ul class="current">
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<li class="toctree-l1 current"><a class="reference internal" href="index.html">Working With Databases</a><ul class="current">
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<li class="toctree-l2"><a class="reference internal" href="examples.html">Quick Start: Usage Examples</a></li>
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<li class="toctree-l2 current"><a class="current reference internal" href="#">Database Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="connecting.html">Connecting to a Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="queries.html">Running Queries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="results.html">Generating Query Results</a></li>
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<li class="toctree-l2"><a class="reference internal" href="helpers.html">Query Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="query_builder.html">Query Builder Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="transactions.html">Transactions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="metadata.html">Getting MetaData</a></li>
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<li class="toctree-l2"><a class="reference internal" href="call_function.html">Custom Function Calls</a></li>
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<li class="toctree-l2"><a class="reference internal" href="events.html">Database Events</a></li>
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<li class="toctree-l2"><a class="reference internal" href="utilities.html">Database Utilities</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../models/index.html">Modeling Data</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../models/model.html">Using CodeIgniter's Model</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../models/entities.html">Using Entity Classes</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../dbmgmt/index.html">Managing Databases</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/forge.html">Database Manipulation with Database Forge</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/migration.html">Database Migrations</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/seeds.html">Database Seeding</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/db_commands.html">Database Commands</a></li>
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</ul>
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</li>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Library Reference</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/cookies.html">Cookies</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/curlrequest.html">CURLRequest Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Service</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/files.html">Working with Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/files.html#file-collections">File Collections</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/honeypot.html">Honeypot Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/images.html">Image Manipulation Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/publisher.html">Publisher</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/throttler.html">Throttler</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/time.html">Times and Dates</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/uploaded_files.html">Working with Uploaded Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">Working with URIs</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/validation.html">Validation</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/filesystem_helper.html">Filesystem Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/test_helper.html">Test Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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</ul>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../testing/index.html">Testing</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../testing/overview.html">Getting Started</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/database.html">Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/fabricator.html">Generating Data</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/controllers.html">Controller Testing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/feature.html">HTTP Testing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/response.html">Testing Responses</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/benchmark.html">Benchmarking</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/debugging.html">Debugging Your Application</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/mocking.html">Mocking</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../cli/index.html">Command Line Usage</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_overview.html">CLI Overview</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_controllers.html">Running Controllers via CLI</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/spark_commands.html">Spark Commands</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_commands.html">Creating Spark Commands</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_generators.html">CLI Generators</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_library.html">CLI Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_request.html">CLIRequest Class</a></li>
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</ul>
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<li class="toctree-l1"><a class="reference internal" href="../extending/index.html">Extending CodeIgniter</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../extending/core_classes.html">Creating Core System Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/common.html">Replacing Common Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/events.html">Events</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/basecontroller.html">Extending the Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/authentication.html">Authentication</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/contributing.html">Contributing to CodeIgniter</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../libraries/official_packages.html">Official Packages</a></li>
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|
||
<li><a href="../index.html" class="icon icon-home"></a> »</li>
|
||
<li><a href="index.html">Working With Databases</a> »</li>
|
||
<li>Database Configuration</li>
|
||
<li class="wy-breadcrumbs-aside">
|
||
</li>
|
||
</ul>
|
||
<hr/>
|
||
</div>
|
||
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
|
||
<div itemprop="articleBody">
|
||
|
||
<section id="database-configuration">
|
||
<h1>Database Configuration<a class="headerlink" href="#database-configuration" title="Permalink to this headline"></a></h1>
|
||
<div class="contents local topic" id="contents">
|
||
<ul class="simple">
|
||
<li><p><a class="reference internal" href="#config-file" id="id1">Config File</a></p>
|
||
<ul>
|
||
<li><p><a class="reference internal" href="#dsn" id="id2">DSN</a></p></li>
|
||
<li><p><a class="reference internal" href="#failovers" id="id3">Failovers</a></p></li>
|
||
<li><p><a class="reference internal" href="#defaultgroup" id="id4">defaultGroup</a></p></li>
|
||
</ul>
|
||
</li>
|
||
<li><p><a class="reference internal" href="#configuring-with-env-file" id="id5">Configuring with .env File</a></p></li>
|
||
<li><p><a class="reference internal" href="#explanation-of-values" id="id6">Explanation of Values:</a></p></li>
|
||
</ul>
|
||
</div>
|
||
<section id="config-file">
|
||
<h2><a class="toc-backref" href="#id1">Config File</a><a class="headerlink" href="#config-file" title="Permalink to this headline"></a></h2>
|
||
<p>CodeIgniter has a config file that lets you store your database
|
||
connection values (username, password, database name, etc.). The config
|
||
file is located at <strong>app/Config/Database.php</strong>. You can also set
|
||
database connection values in the <strong>.env</strong> file. See below for more details.</p>
|
||
<p>The config settings are stored in a class property that is an array with this
|
||
prototype:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="k">namespace</span> <span class="nx">Config</span><span class="p">;</span>
|
||
|
||
<span class="k">use</span> <span class="nx">CodeIgniter\Database\Config</span><span class="p">;</span>
|
||
|
||
<span class="k">class</span> <span class="nc">Database</span> <span class="k">extends</span> <span class="nx">Config</span>
|
||
<span class="p">{</span>
|
||
<span class="k">public</span> <span class="nv">$default</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'DSN'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'hostname'</span> <span class="o">=></span> <span class="s1">'localhost'</span><span class="p">,</span>
|
||
<span class="s1">'username'</span> <span class="o">=></span> <span class="s1">'root'</span><span class="p">,</span>
|
||
<span class="s1">'password'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'database'</span> <span class="o">=></span> <span class="s1">'database_name'</span><span class="p">,</span>
|
||
<span class="s1">'DBDriver'</span> <span class="o">=></span> <span class="s1">'MySQLi'</span><span class="p">,</span>
|
||
<span class="s1">'DBPrefix'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'pConnect'</span> <span class="o">=></span> <span class="k">true</span><span class="p">,</span>
|
||
<span class="s1">'DBDebug'</span> <span class="o">=></span> <span class="k">true</span><span class="p">,</span>
|
||
<span class="s1">'charset'</span> <span class="o">=></span> <span class="s1">'utf8'</span><span class="p">,</span>
|
||
<span class="s1">'DBCollat'</span> <span class="o">=></span> <span class="s1">'utf8_general_ci'</span><span class="p">,</span>
|
||
<span class="s1">'swapPre'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'encrypt'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'compress'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'strictOn'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'failover'</span> <span class="o">=></span> <span class="p">[],</span>
|
||
<span class="s1">'port'</span> <span class="o">=></span> <span class="mi">3306</span><span class="p">,</span>
|
||
<span class="p">];</span>
|
||
|
||
<span class="c1">// ...</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The name of the class property is the connection name, and can be used
|
||
while connecting to specify a group name.</p>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>The default location of the SQLite3 database is in the <code class="docutils literal notranslate"><span class="pre">writable</span></code> folder.
|
||
If you want to change the location, you must set the full path to the new folder.</p>
|
||
</div>
|
||
<section id="dsn">
|
||
<h3><a class="toc-backref" href="#id2">DSN</a><a class="headerlink" href="#dsn" title="Permalink to this headline"></a></h3>
|
||
<p>Some database drivers (such as PDO, PostgreSQL, Oracle, ODBC) might
|
||
require a full DSN string to be provided. If that is the case, you
|
||
should use the ‘DSN’ configuration setting, as if you’re using the
|
||
driver’s underlying native PHP extension, like this:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="c1">// PDO</span>
|
||
<span class="nv">$default</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'DSN'</span> <span class="o">=></span> <span class="s1">'pgsql:host=localhost;port=5432;dbname=database_name'</span><span class="p">,</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="p">];</span>
|
||
|
||
<span class="c1">// Oracle</span>
|
||
<span class="nv">$default</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'DSN'</span> <span class="o">=></span> <span class="s1">'//localhost/XE'</span><span class="p">,</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="p">];</span>
|
||
</pre></div>
|
||
</div>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>If you do not specify a DSN string for a driver that requires it, CodeIgniter
|
||
will try to build it with the rest of the provided settings.</p>
|
||
</div>
|
||
<p>You can also set a Data Source Name in universal manner (URL like). In that case DSNs must have this prototype:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="nv">$default</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'DSN'</span> <span class="o">=></span> <span class="s1">'DBDriver://username:password@hostname:port/database'</span><span class="p">,</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="p">];</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>To override default config values when connecting with a universal version of the DSN string,
|
||
add the config variables as a query string:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="c1">// MySQLi</span>
|
||
<span class="nv">$default</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'DSN'</span> <span class="o">=></span> <span class="s1">'MySQLi://username:password@hostname:3306/database?charset=utf8&DBCollat=utf8_general_ci'</span><span class="p">,</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="p">];</span>
|
||
|
||
<span class="c1">// Postgre</span>
|
||
<span class="nv">$default</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'DSN'</span> <span class="o">=></span> <span class="s1">'Postgre://username:password@hostname:5432/database?charset=utf8&connect_timeout=5&sslmode=1'</span><span class="p">,</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="p">];</span>
|
||
</pre></div>
|
||
</div>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>If you provide a DSN string and it is missing some valid settings (e.g., the
|
||
database character set), which are present in the rest of the configuration
|
||
fields, CodeIgniter will append them.</p>
|
||
</div>
|
||
</section>
|
||
<section id="failovers">
|
||
<h3><a class="toc-backref" href="#id3">Failovers</a><a class="headerlink" href="#failovers" title="Permalink to this headline"></a></h3>
|
||
<p>You can also specify failovers for the situation when the main connection cannot connect for some reason.
|
||
These failovers can be specified by setting the failover for a connection like this:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="nv">$default</span><span class="p">[</span><span class="s1">'failover'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="p">[</span>
|
||
<span class="s1">'hostname'</span> <span class="o">=></span> <span class="s1">'localhost1'</span><span class="p">,</span>
|
||
<span class="s1">'username'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'password'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'database'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'DBDriver'</span> <span class="o">=></span> <span class="s1">'MySQLi'</span><span class="p">,</span>
|
||
<span class="s1">'DBPrefix'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'pConnect'</span> <span class="o">=></span> <span class="k">true</span><span class="p">,</span>
|
||
<span class="s1">'DBDebug'</span> <span class="o">=></span> <span class="k">true</span><span class="p">,</span>
|
||
<span class="s1">'charset'</span> <span class="o">=></span> <span class="s1">'utf8'</span><span class="p">,</span>
|
||
<span class="s1">'DBCollat'</span> <span class="o">=></span> <span class="s1">'utf8_general_ci'</span><span class="p">,</span>
|
||
<span class="s1">'swapPre'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'encrypt'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'compress'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'strictOn'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="p">],</span>
|
||
<span class="p">[</span>
|
||
<span class="s1">'hostname'</span> <span class="o">=></span> <span class="s1">'localhost2'</span><span class="p">,</span>
|
||
<span class="s1">'username'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'password'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'database'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'DBDriver'</span> <span class="o">=></span> <span class="s1">'MySQLi'</span><span class="p">,</span>
|
||
<span class="s1">'DBPrefix'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'pConnect'</span> <span class="o">=></span> <span class="k">true</span><span class="p">,</span>
|
||
<span class="s1">'DBDebug'</span> <span class="o">=></span> <span class="k">true</span><span class="p">,</span>
|
||
<span class="s1">'charset'</span> <span class="o">=></span> <span class="s1">'utf8'</span><span class="p">,</span>
|
||
<span class="s1">'DBCollat'</span> <span class="o">=></span> <span class="s1">'utf8_general_ci'</span><span class="p">,</span>
|
||
<span class="s1">'swapPre'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'encrypt'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'compress'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'strictOn'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="p">],</span>
|
||
<span class="p">];</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>You can specify as many failovers as you like.</p>
|
||
<p>You may optionally store multiple sets of connection
|
||
values. If, for example, you run multiple environments (development,
|
||
production, test, etc.) under a single installation, you can set up a
|
||
connection group for each, then switch between groups as needed. For
|
||
example, to set up a “test” environment you would do this:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="k">namespace</span> <span class="nx">Config</span><span class="p">;</span>
|
||
|
||
<span class="k">use</span> <span class="nx">CodeIgniter\Database\Config</span><span class="p">;</span>
|
||
|
||
<span class="k">class</span> <span class="nc">Database</span> <span class="k">extends</span> <span class="nx">Config</span>
|
||
<span class="p">{</span>
|
||
<span class="k">public</span> <span class="nv">$test</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'DSN'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'hostname'</span> <span class="o">=></span> <span class="s1">'localhost'</span><span class="p">,</span>
|
||
<span class="s1">'username'</span> <span class="o">=></span> <span class="s1">'root'</span><span class="p">,</span>
|
||
<span class="s1">'password'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'database'</span> <span class="o">=></span> <span class="s1">'database_name'</span><span class="p">,</span>
|
||
<span class="s1">'DBDriver'</span> <span class="o">=></span> <span class="s1">'MySQLi'</span><span class="p">,</span>
|
||
<span class="s1">'DBPrefix'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'pConnect'</span> <span class="o">=></span> <span class="k">true</span><span class="p">,</span>
|
||
<span class="s1">'DBDebug'</span> <span class="o">=></span> <span class="k">true</span><span class="p">,</span>
|
||
<span class="s1">'charset'</span> <span class="o">=></span> <span class="s1">'utf8'</span><span class="p">,</span>
|
||
<span class="s1">'DBCollat'</span> <span class="o">=></span> <span class="s1">'utf8_general_ci'</span><span class="p">,</span>
|
||
<span class="s1">'swapPre'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
||
<span class="s1">'compress'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'encrypt'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'strictOn'</span> <span class="o">=></span> <span class="k">false</span><span class="p">,</span>
|
||
<span class="s1">'failover'</span> <span class="o">=></span> <span class="p">[],</span>
|
||
<span class="p">];</span>
|
||
|
||
<span class="c1">// ...</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Then, to globally tell the system to use that group you would set this
|
||
variable located in the config file:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="nv">$defaultGroup</span> <span class="o">=</span> <span class="s1">'test'</span><span class="p">;</span>
|
||
</pre></div>
|
||
</div>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>The name ‘test’ is arbitrary. It can be anything you want. By
|
||
default we’ve used the word “default” for the primary connection,
|
||
but it too can be renamed to something more relevant to your project.</p>
|
||
</div>
|
||
</section>
|
||
<section id="defaultgroup">
|
||
<h3><a class="toc-backref" href="#id4">defaultGroup</a><a class="headerlink" href="#defaultgroup" title="Permalink to this headline"></a></h3>
|
||
<p>You could modify the config file to detect the environment and automatically
|
||
update the <cite>defaultGroup</cite> value to the correct one by adding the required logic
|
||
within the class’ constructor:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="k">namespace</span> <span class="nx">Config</span><span class="p">;</span>
|
||
|
||
<span class="k">use</span> <span class="nx">CodeIgniter\Database\Config</span><span class="p">;</span>
|
||
|
||
<span class="k">class</span> <span class="nc">Database</span> <span class="k">extends</span> <span class="nx">Config</span>
|
||
<span class="p">{</span>
|
||
<span class="k">public</span> <span class="nv">$development</span> <span class="o">=</span> <span class="p">[</span><span class="cm">/* ... */</span><span class="p">];</span>
|
||
<span class="k">public</span> <span class="nv">$test</span> <span class="o">=</span> <span class="p">[</span><span class="cm">/* ... */</span><span class="p">];</span>
|
||
<span class="k">public</span> <span class="nv">$production</span> <span class="o">=</span> <span class="p">[</span><span class="cm">/* ... */</span><span class="p">];</span>
|
||
|
||
<span class="k">public</span> <span class="k">function</span> <span class="fm">__construct</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">defaultGroup</span> <span class="o">=</span> <span class="nx">ENVIRONMENT</span><span class="p">;</span>
|
||
<span class="p">}</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
</section>
|
||
<section id="configuring-with-env-file">
|
||
<h2><a class="toc-backref" href="#id5">Configuring with .env File</a><a class="headerlink" href="#configuring-with-env-file" title="Permalink to this headline"></a></h2>
|
||
<p>You can also save your configuration values within a <strong>.env</strong> file with the current server’s
|
||
database settings. You only need to enter the values that change from what is in the
|
||
default group’s configuration settings. The values should be name following this format, where
|
||
<code class="docutils literal notranslate"><span class="pre">default</span></code> is the group name:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="nx">database</span><span class="o">.</span><span class="k">default</span><span class="o">.</span><span class="nx">username</span> <span class="o">=</span> <span class="s1">'root'</span><span class="p">;</span>
|
||
<span class="nx">database</span><span class="o">.</span><span class="k">default</span><span class="o">.</span><span class="nx">password</span> <span class="o">=</span> <span class="s1">''</span><span class="p">;</span>
|
||
<span class="nx">database</span><span class="o">.</span><span class="k">default</span><span class="o">.</span><span class="nx">database</span> <span class="o">=</span> <span class="s1">'ci4'</span><span class="p">;</span>
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
<section id="explanation-of-values">
|
||
<h2><a class="toc-backref" href="#id6">Explanation of Values:</a><a class="headerlink" href="#explanation-of-values" title="Permalink to this headline"></a></h2>
|
||
<table class="docutils align-default">
|
||
<colgroup>
|
||
<col style="width: 12%" />
|
||
<col style="width: 88%" />
|
||
</colgroup>
|
||
<thead>
|
||
<tr class="row-odd"><th class="head"><p>Name Config</p></th>
|
||
<th class="head"><p>Description</p></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr class="row-even"><td><p><strong>dsn</strong></p></td>
|
||
<td><p>The DSN connect string (an all-in-one configuration sequence).</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>hostname</strong></p></td>
|
||
<td><p>The hostname of your database server. Often this is ‘localhost’.</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p><strong>username</strong></p></td>
|
||
<td><p>The username used to connect to the database.</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>password</strong></p></td>
|
||
<td><p>The password used to connect to the database.</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p><strong>database</strong></p></td>
|
||
<td><p>The name of the database you want to connect to.</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>DBDriver</strong></p></td>
|
||
<td><p>The database type. e.g.,: <code class="docutils literal notranslate"><span class="pre">MySQLi</span></code>, <code class="docutils literal notranslate"><span class="pre">Postgres</span></code>, etc. The case must match the driver name</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p><strong>DBPrefix</strong></p></td>
|
||
<td><p>An optional table prefix which will added to the table name when running
|
||
<a class="reference internal" href="query_builder.html"><span class="doc">Query Builder</span></a> queries. This permits multiple CodeIgniter
|
||
installations to share one database.</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>pConnect</strong></p></td>
|
||
<td><p>true/false (boolean) - Whether to use a persistent connection.</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p><strong>DBDebug</strong></p></td>
|
||
<td><p>true/false (boolean) - Whether database errors should be displayed.</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>charset</strong></p></td>
|
||
<td><p>The character set used in communicating with the database.</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p><strong>DBCollat</strong></p></td>
|
||
<td><p>The character collation used in communicating with the database (<code class="docutils literal notranslate"><span class="pre">MySQLi</span></code> only)</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>swapPre</strong></p></td>
|
||
<td><p>A default table prefix that should be swapped with <code class="docutils literal notranslate"><span class="pre">DBPrefix</span></code>. This is useful for distributed
|
||
applications where you might run manually written queries, and need the prefix to still be
|
||
customizable by the end user.</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p><strong>schema</strong></p></td>
|
||
<td><p>The database schema, default value varies by driver. Used by <code class="docutils literal notranslate"><span class="pre">Postgres</span></code> and <code class="docutils literal notranslate"><span class="pre">SQLSRV</span></code> drivers.</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>encrypt</strong></p></td>
|
||
<td><p>Whether or not to use an encrypted connection.
|
||
<code class="docutils literal notranslate"><span class="pre">SQLSRV</span></code> drivers accept true/false
|
||
<code class="docutils literal notranslate"><span class="pre">MySQLi</span></code> drivers accept an array with the following options:
|
||
* <code class="docutils literal notranslate"><span class="pre">ssl_key</span></code> - Path to the private key file
|
||
* <code class="docutils literal notranslate"><span class="pre">ssl_cert</span></code> - Path to the public key certificate file
|
||
* <code class="docutils literal notranslate"><span class="pre">ssl_ca</span></code> - Path to the certificate authority file
|
||
* <code class="docutils literal notranslate"><span class="pre">ssl_capath</span></code> - Path to a directory containing trusted CA certificates in PEM format
|
||
* <code class="docutils literal notranslate"><span class="pre">ssl_cipher</span></code> - List of <em>allowed</em> ciphers to be used for the encryption, separated by colons (<code class="docutils literal notranslate"><span class="pre">:</span></code>)
|
||
* <code class="docutils literal notranslate"><span class="pre">ssl_verify</span></code> - true/false; Whether to verify the server certificate or not (<code class="docutils literal notranslate"><span class="pre">MySQLi</span></code> only)</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p><strong>compress</strong></p></td>
|
||
<td><p>Whether or not to use client compression (<code class="docutils literal notranslate"><span class="pre">MySQLi</span></code> only).</p></td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>strictOn</strong></p></td>
|
||
<td><p>true/false (boolean) - Whether to force “Strict Mode” connections, good for ensuring strict SQL
|
||
while developing an application.</p></td>
|
||
</tr>
|
||
<tr class="row-even"><td><p><strong>port</strong></p></td>
|
||
<td><p>The database port number. To use this value you have to add a line to the database config array.</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="nv">$default</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="s1">'port'</span> <span class="o">=></span> <span class="mi">5432</span><span class="p">,</span>
|
||
<span class="p">];</span>
|
||
</pre></div>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
<tr class="row-odd"><td><p><strong>foreignKeys</strong></p></td>
|
||
<td><p>true/false (boolean) - Whether or not to enable Foreign Key constraint (<code class="docutils literal notranslate"><span class="pre">SQLite3</span></code> only).</p>
|
||
<div class="admonition important">
|
||
<p class="admonition-title">Important</p>
|
||
<p>SQLite3 Foreign Key constraint is disabled by default.
|
||
See <a class="reference external" href="https://www.sqlite.org/pragma.html#pragma_foreign_keys">SQLite documentation</a>.
|
||
To enforce Foreign Key constraint, set this config item to true.</p>
|
||
</div>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>Depending on what database platform you are using (MySQL, PostgreSQL,
|
||
etc.) not all values will be needed. For example, when using SQLite you
|
||
will not need to supply a username or password, and the database name
|
||
will be the path to your database file. The information above assumes
|
||
you are using MySQL.</p>
|
||
</div>
|
||
</section>
|
||
</section>
|
||
|
||
|
||
</div>
|
||
</div>
|
||
<footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
|
||
<a href="examples.html" class="btn btn-neutral float-left" title="Database Quick Start: Example Code" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
|
||
<a href="connecting.html" class="btn btn-neutral float-right" title="Connecting to your Database" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
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||
|
||
<hr/>
|
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|
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<p>© Copyright 2019-2022 CodeIgniter Foundation.
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<span class="lastupdated">Last updated on Sep 30, 2022.
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