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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 31 | $okay = true; |
| 32 | $problems = array(); |
| 33 | |
| 34 | $tables = $wpdb->tables(); |
| 35 | |
| 36 | // Sitecategories may not exist if global terms are disabled. |
| 37 | if ( is_multisite() && ! $wpdb->get_var( "SHOW TABLES LIKE '$wpdb->sitecategories'" ) ) |
| 38 | unset( $tables['sitecategories'] ); |
| 39 | |
| 40 | $tables = array_merge( $tables, (array) apply_filters( 'tables_to_repair', array() ) ); // Return tables with table prefixes. |
| 41 | |
| 42 | // Loop over the tables, checking and repairing as needed. |
| 43 | foreach ( $tables as $table ) { |
| 44 | $check = $wpdb->get_row("CHECK TABLE $table"); |
| 45 | |
| 46 | echo '<p>'; |
| 47 | if ( 'OK' == $check->Msg_text ) { |
| 48 | /* translators: %s: table name */ |
| 49 | printf( __( 'The %s table is okay.' ), $table ); |