Issue an error during the WordPress install process if wp-config.php is configured with an empty database table prefix, which is not supported.

nacin · nacin · commit 6b46997aa19e · 2012-05-02T20:37:18.000Z
props SergeyBiryukov. fixes #19970. git-svn-id: https://develop.svn.wordpress.org/trunk@20699 602fd350-edb4-49c9-b593-d223f7449a82
diff --git a/wp-admin/install.php b/wp-admin/install.php
@@ -151,15 +151,20 @@ function display_setup_form( $error = null ) {
 $mysql_compat   = version_compare( $mysql_version, $required_mysql_version, '>=' ) || file_exists( WP_CONTENT_DIR . '/db.php' );
 
 if ( !$mysql_compat && !$php_compat )
-	$compat = sprintf( __('You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.'), $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version );
+	$compat = sprintf( __( 'You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.' ), $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version );
 elseif ( !$php_compat )
-	$compat = sprintf( __('You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher. You are running version %3$s.'), $wp_version, $required_php_version, $php_version );
+	$compat = sprintf( __( 'You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher. You are running version %3$s.' ), $wp_version, $required_php_version, $php_version );
 elseif ( !$mysql_compat )
-	$compat = sprintf( __('You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires MySQL version %2$s or higher. You are running version %3$s.'), $wp_version, $required_mysql_version, $mysql_version );
+	$compat = sprintf( __( 'You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires MySQL version %2$s or higher. You are running version %3$s.' ), $wp_version, $required_mysql_version, $mysql_version );
 
 if ( !$mysql_compat || !$php_compat ) {
 	display_header();
-	die('<h1>' . __('Insufficient Requirements') . '</h1><p>' . $compat . '</p></body></html>');
+	die( '<h1>' . __( 'Insufficient Requirements' ) . '</h1><p>' . $compat . '</p></body></html>' );
+}
+
+if ( empty( $wpdb->prefix ) ) {
+	display_header();	
+	die( '<h1>' . __( 'Configuration Error' ) . '</h1><p>' . __( 'Your <code>wp-config.php</code> file has an empty database table prefix, which is not supported.' ) . '</p></body></html>' );
 }
 
 switch($step) {
