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<title>[55367] trunk/src/wp-includes/load.php: Bootstrap/Load: Check that either `mysqli_connect()` or `mysql_connect()` is available.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/55367">55367</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/55367","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-02-20 16:03:17 +0000 (Mon, 20 Feb 2023)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Bootstrap/Load: Check that either `mysqli_connect()` or `mysql_connect()` is available.
This resolves a fatal error and displays an actionable message if the `mysqli` PHP extension is missing.
Previously, `wp_check_php_mysql_versions()` performed an early check whether `mysql`, `mysqli`, or `mysqlnd` extensions are loaded, but that did not work if the `mysqlnd` extension is the only one present.
Checking specifically for `mysqli_connect()` or `mysql_connect()` functions should be a more reliable approach and more closely mirrors the existing checks in the `wpdb` class.
Follow-up to <a href="https://core.trac.wordpress.org/changeset/1955">[1955]</a>, <a href="https://core.trac.wordpress.org/changeset/4489">[4489]</a>, <a href="https://core.trac.wordpress.org/changeset/7234">[7234]</a>, <a href="https://core.trac.wordpress.org/changeset/12732">[12732]</a>, <a href="https://core.trac.wordpress.org/changeset/19760">[19760]</a>, <a href="https://core.trac.wordpress.org/changeset/27257">[27257]</a>, <a href="https://core.trac.wordpress.org/changeset/36434">[36434]</a>.
Props bgin, desrosj, dimadin, ipajen, hellofromTonya, sc0ttkclark, azaozz, SergeyBiryukov.
Fixes <a href="https://core.trac.wordpress.org/ticket/51988">#51988</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesloadphp">trunk/src/wp-includes/load.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludesloadphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/load.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/load.php 2023-02-20 13:26:33 UTC (rev 55366)
+++ trunk/src/wp-includes/load.php 2023-02-20 16:03:17 UTC (rev 55367)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -149,11 +149,16 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $protocol = wp_get_server_protocol();
</span><span class="cx" style="display: block; padding: 0 10px"> header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
</span><span class="cx" style="display: block; padding: 0 10px"> header( 'Content-Type: text/html; charset=utf-8' );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- printf( 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.', $php_version, $wp_version, $required_php_version );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ printf(
+ 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.',
+ $php_version,
+ $wp_version,
+ $required_php_version
+ );
</ins><span class="cx" style="display: block; padding: 0 10px"> exit( 1 );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' )
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( ! function_exists( 'mysqli_connect' ) && ! function_exists( 'mysql_connect' )
</ins><span class="cx" style="display: block; padding: 0 10px"> // This runs before default constants are defined, so we can't assume WP_CONTENT_DIR is set yet.
</span><span class="cx" style="display: block; padding: 0 10px"> && ( defined( 'WP_CONTENT_DIR' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' )
</span><span class="cx" style="display: block; padding: 0 10px"> || ! file_exists( ABSPATH . 'wp-content/db.php' ) )
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -160,12 +165,27 @@
</span><span class="cx" style="display: block; padding: 0 10px"> ) {
</span><span class="cx" style="display: block; padding: 0 10px"> require_once ABSPATH . WPINC . '/functions.php';
</span><span class="cx" style="display: block; padding: 0 10px"> wp_load_translations_early();
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ $message = '<p>' . __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ) . "</p>\n";
+
+ $message .= '<p>' . sprintf(
+ /* translators: %s: mysqli. */
+ __( 'Please check that the %s PHP extension is installed and enabled.' ),
+ '<code>mysqli</code>'
+ ) . "</p>\n";
+
+ $message .= '<p>' . sprintf(
+ /* translators: %s: Support forums URL. */
+ __( 'If you are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href="%s">WordPress Support Forums</a>.' ),
+ __( 'https://wordpress.org/support/forums/' )
+ ) . "</p>\n";
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $args = array(
</span><span class="cx" style="display: block; padding: 0 10px"> 'exit' => false,
</span><span class="cx" style="display: block; padding: 0 10px"> 'code' => 'mysql_not_found',
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><span class="cx" style="display: block; padding: 0 10px"> wp_die(
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $message,
</ins><span class="cx" style="display: block; padding: 0 10px"> __( 'Requirements Not Met' ),
</span><span class="cx" style="display: block; padding: 0 10px"> $args
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span></span></pre>
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