Allow stubs.php in repo

.gitignore

@@ -3,4 +3,3 @@
 .vscode
 wp-cli.phar
 /cache
-stubs.php

stubs.php

@@ -0,0 +1,61 @@
+<?php
+
+/**
+ * PHP rand()
+ *
+ * @link https://www.php.net/manual/en/function.rand.php
+ *
+ * @param int $min  Optional minimum.
+ * @param int $max  Optional maximum.
+ *
+ * @return int Random number.
+ */
+
+function rand( int $min = null, int $max = null ) {}
+
+/**
+ * Updates post author user caches for a list of post objects.
+ *
+ * @since WP 6.1.0
+ *
+ * @param WP_Post[] $posts Array of post objects.
+ */
+
+function update_post_author_caches( $posts ) {}
+
+/**
+ * PHP random_bytes()
+ *
+ * Generates a string containing uniformly selected
+ * random bytes with the requested length.
+ *
+ * @link https://www.php.net/manual/en/function.random-bytes.php
+ *
+ * @param int $length  Length of the requested random string.
+ *
+ * @return string Random string with the requested length.
+ */
+
+function random_bytes( int $length ) {}
+
+/**
+ * Outputs an admin notice.
+ *
+ * @since 6.4.0
+ *
+ * @param string $message  The message to output.
+ * @param array  $args {
+ *   Optional. An array of arguments for the admin notice. Default empty array.
+ *
+ *   @type string   $type                Optional. The type of admin notice.
+ *                                       For example, 'error', 'success', 'warning', 'info'.
+ *                                       Default empty string.
+ *   @type bool     $dismissible         Optional. Whether the admin notice is dismissible. Default false.
+ *   @type string   $id                  Optional. The value of the admin notice's ID attribute. Default empty string.
+ *   @type string[] $additional_classes  Optional. A string array of class names. Default empty array.
+ *   @type string[] $attributes          Optional. Additional attributes for the notice div. Default empty array.
+ *   @type bool     $paragraph_wrap      Optional. Whether to wrap the message in paragraph tags. Default true.
+ * }
+ */
+
+function wp_admin_notice( string $message, array $args = array() ) {}