Changeset 42388

Timestamp:

12/12/2017 05:42:12 AM (7 years ago)

Author:

dd32

Message:

WPDB: Always use mysqli when available.

This change makes WordPress use mysqli on PHP <5.5 when available, instead of only in PHP 5.5+ and development installs.

WPDB includes a fallback to mysql in the event that the database connection fails with mysqli so incompatibilities should be few and far between.

Fixes #42812 for trunk.

File:

• trunk/src/wp-includes/wp-db.php (modified) (1 diff)

trunk/src/wp-includes/wp-db.php

@@ -594 +594 @@
         }
 
-        /* Use ext/mysqli if it exists and:
-         *  - WP_USE_EXT_MYSQL is defined as false, or
-         *  - We are a development version of WordPress, or
-         *  - We are running PHP 5.5 or greater, or
-         *  - ext/mysql is not loaded.
-         */
+        // Use ext/mysqli if it exists unless WP_USE_EXT_MYSQL is defined as true
         if ( function_exists( 'mysqli_connect' ) ) {
+            $this->use_mysqli = true;
+
             if ( defined( 'WP_USE_EXT_MYSQL' ) ) {
                 $this->use_mysqli = ! WP_USE_EXT_MYSQL;
-            } elseif ( version_compare( phpversion(), '5.5', '>=' ) || ! function_exists( 'mysql_connect' ) ) {
-                $this->use_mysqli = true;
-            } elseif ( false !== strpos( $GLOBALS['wp_version'], '-' ) ) {
-                $this->use_mysqli = true;
             }
         }