* Database Repair and Optimization Script.
define( 'WP_REPAIRING', true );
require_once dirname( dirname( __DIR__ ) ) . '/wp-load.php';
header( 'Content-Type: text/html; charset=utf-8' );
<html <?php language_attributes(); ?>>
<meta name="viewport" content="width=device-width" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="robots" content="noindex,nofollow" />
<title><?php _e( 'WordPress › Database Repair' ); ?></title>
<?php wp_admin_css( 'install', true ); ?>
<body class="wp-core-ui">
<p id="logo"><a href="<?php echo esc_url( __( 'https://wordpress.org/' ) ); ?>"><?php _e( 'WordPress' ); ?></a></p>
if ( ! defined( 'WP_ALLOW_REPAIR' ) || ! WP_ALLOW_REPAIR ) {
echo '<h1 class="screen-reader-text">' . __( 'Allow automatic database repair' ) . '</h1>';
/* translators: %s: wp-config.php */
__( 'To allow use of this page to automatically repair database problems, please add the following line to your %s file. Once this line is added to your config, reload this page.' ),
'<code>wp-config.php</code>'
echo "</p><p><code>define('WP_ALLOW_REPAIR', true);</code></p>";
$default_key = 'put your unique phrase here';
$duplicated_keys = array();
foreach ( array( 'AUTH_KEY', 'SECURE_AUTH_KEY', 'LOGGED_IN_KEY', 'NONCE_KEY', 'AUTH_SALT', 'SECURE_AUTH_SALT', 'LOGGED_IN_SALT', 'NONCE_SALT' ) as $key ) {
// Check for unique values of each key.
$duplicated_keys[ constant( $key ) ] = isset( $duplicated_keys[ constant( $key ) ] );
// If a constant is not defined, it's missing.
// If at least one key uses the default value, consider it duplicated.
if ( isset( $duplicated_keys[ $default_key ] ) ) {
$duplicated_keys[ $default_key ] = true;
// Weed out all unique, non-default values.
$duplicated_keys = array_filter( $duplicated_keys );
if ( $duplicated_keys || $missing_key ) {
echo '<h2 class="screen-reader-text">' . __( 'Check secret keys' ) . '</h2>';
/* translators: 1: wp-config.php, 2: Secret key service URL. */
echo '<p>' . sprintf( __( 'While you are editing your %1$s file, take a moment to make sure you have all 8 keys and that they are unique. You can generate these using the <a href="%2$s">WordPress.org secret key service</a>.' ), '<code>wp-config.php</code>', 'https://api.wordpress.org/secret-key/1.1/salt/' ) . '</p>';
} elseif ( isset( $_GET['repair'] ) ) {
echo '<h1 class="screen-reader-text">' . __( 'Database repair results' ) . '</h1>';
$optimize = 2 == $_GET['repair'];
$tables = $wpdb->tables();
// Sitecategories may not exist if global terms are disabled.
$query = $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $wpdb->sitecategories ) );
if ( is_multisite() && ! $wpdb->get_var( $query ) ) {
unset( $tables['sitecategories'] );
* Filters additional database tables to repair.
* @param string[] $tables Array of prefixed table names to be repaired.
$tables = array_merge( $tables, (array) apply_filters( 'tables_to_repair', array() ) );
// Loop over the tables, checking and repairing as needed.
foreach ( $tables as $table ) {
$check = $wpdb->get_row( "CHECK TABLE $table" );
if ( 'OK' === $check->Msg_text ) {
/* translators: %s: Table name. */
printf( __( 'The %s table is okay.' ), "<code>$table</code>" );
/* translators: 1: Table name, 2: Error message. */
printf( __( 'The %1$s table is not okay. It is reporting the following error: %2$s. WordPress will attempt to repair this table…' ), "<code>$table</code>", "<code>$check->Msg_text</code>" );
$repair = $wpdb->get_row( "REPAIR TABLE $table" );
echo '<br /> ';
if ( 'OK' === $repair->Msg_text ) {
/* translators: %s: Table name. */
printf( __( 'Successfully repaired the %s table.' ), "<code>$table</code>" );
/* translators: 1: Table name, 2: Error message. */
printf( __( 'Failed to repair the %1$s table. Error: %2$s' ), "<code>$table</code>", "<code>$repair->Msg_text</code>" ) . '<br />';
$problems[ $table ] = $repair->Msg_text;
if ( $okay && $optimize ) {
$analyze = $wpdb->get_row( "ANALYZE TABLE $table" );
echo '<br /> ';
if ( 'Table is already up to date' === $analyze->Msg_text ) {
/* translators: %s: Table name. */
printf( __( 'The %s table is already optimized.' ), "<code>$table</code>" );
$optimize = $wpdb->get_row( "OPTIMIZE TABLE $table" );
echo '<br /> ';
if ( 'OK' === $optimize->Msg_text || 'Table is already up to date' === $optimize->Msg_text ) {
/* translators: %s: Table name. */
printf( __( 'Successfully optimized the %s table.' ), "<code>$table</code>" );
/* translators: 1: Table name. 2: Error message. */
printf( __( 'Failed to optimize the %1$s table. Error: %2$s' ), "<code>$table</code>", "<code>$optimize->Msg_text</code>" );
/* translators: %s: URL to "Fixing WordPress" forum. */
'<p>' . __( 'Some database problems could not be repaired. Please copy-and-paste the following list of errors to the <a href="%s">WordPress support forums</a> to get additional assistance.' ) . '</p>',
__( 'https://wordpress.org/support/forum/how-to-and-troubleshooting' )
foreach ( $problems as $table => $problem ) {
$problem_output .= "$table: $problem\n";
echo '<p><textarea name="errors" id="errors" rows="20" cols="60">' . esc_textarea( $problem_output ) . '</textarea></p>';
echo '<p>' . __( 'Repairs complete. Please remove the following line from wp-config.php to prevent this page from being used by unauthorized users.' ) . "</p><p><code>define('WP_ALLOW_REPAIR', true);</code></p>";
echo '<h1 class="screen-reader-text">' . __( 'WordPress database repair' ) . '</h1>';
if ( isset( $_GET['referrer'] ) && 'is_blog_installed' === $_GET['referrer'] ) {
echo '<p>' . __( 'One or more database tables are unavailable. To allow WordPress to attempt to repair these tables, press the “Repair Database” button. Repairing can take a while, so please be patient.' ) . '</p>';
echo '<p>' . __( 'WordPress can automatically look for some common database problems and repair them. Repairing can take a while, so please be patient.' ) . '</p>';
<p class="step"><a class="button button-large" href="repair.php?repair=1"><?php _e( 'Repair Database' ); ?></a></p>
<p><?php _e( 'WordPress can also attempt to optimize the database. This improves performance in some situations. Repairing and optimizing the database can take a long time and the database will be locked while optimizing.' ); ?></p>
<p class="step"><a class="button button-large" href="repair.php?repair=2"><?php _e( 'Repair and Optimize Database' ); ?></a></p>