Options, Meta APIs: Add a filter to allow the shortcut return to `wp_load_alloptions` function.

Add a new filter `pre_wp_load_alloptions` in the `wp_load_alloptions` function to short circuit the return value. 

Props pbearne, spacedmonkey, joyously, SergeyBiryukov, mukesh27, costdev. 
Fixes #56045.
Built from https://develop.svn.wordpress.org/trunk@55256


git-svn-id: http://core.svn.wordpress.org/trunk@54789 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/option.php

@@ -301,6 +301,22 @@ function form_option( $option ) {
 function wp_load_alloptions( $force_cache = false ) {
 	global $wpdb;
 
+	/**
+	 * Filters the array of alloptions before it is populated.
+	 *
+	 * Returning an array from the filter will effectively short circuit
+	 * wp_load_alloptions(), returning that value instead.
+	 *
+	 * @since 6.2.0
+	 *
+	 * @param array|null $alloptions  An array of alloptions. Default null.
+	 * @param bool       $force_cache Whether to force an update of the local cache from the persistent cache. Default false.
+	 */
+	$alloptions = apply_filters( 'pre_wp_load_alloptions', null, $force_cache );
+	if ( is_array( $alloptions ) ) {
+		return $alloptions;
+	}
+
 	if ( ! wp_installing() || ! is_multisite() ) {
 		$alloptions = wp_cache_get( 'alloptions', 'options', $force_cache );
 	} else {

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-alpha-55255';
+$wp_version = '6.2-alpha-55256';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.