Index: tools/i18n/pot-ext-meta.php
===================================================================
--- tools/i18n/pot-ext-meta.php	(revision 33407)
+++ tools/i18n/pot-ext-meta.php	(working copy)
@@ -67,7 +67,7 @@
 
 $included_files = get_included_files();
 if ($included_files[0] == __FILE__) {
-	ini_set('display_errors', 1);
+	@ini_set('display_errors', 1);
 	$potextmeta = new PotExtMeta;
 	if (!isset($argv[1])) {
 		$potextmeta->usage();
Index: tests/phpunit/includes/testcase-ajax.php
===================================================================
--- tests/phpunit/includes/testcase-ajax.php	(revision 33407)
+++ tests/phpunit/includes/testcase-ajax.php	(working copy)
@@ -162,7 +162,7 @@
 	protected function _handleAjax($action) {
 
 		// Start output buffering
-		ini_set( 'implicit_flush', false );
+		@ini_set( 'implicit_flush', false );
 		ob_start();
 
 		// Build the request
Index: tests/phpunit/includes/testcase.php
===================================================================
--- tests/phpunit/includes/testcase.php	(revision 33407)
+++ tests/phpunit/includes/testcase.php	(working copy)
@@ -34,7 +34,7 @@
 		$wpdb->suppress_errors = false;
 		$wpdb->show_errors = true;
 		$wpdb->db_connect();
-		ini_set('display_errors', 1 );
+		@ini_set('display_errors', 1 );
 		$this->factory = new WP_UnitTest_Factory;
 		$this->clean_up_global_scope();
 
Index: src/wp-includes/class-phpmailer.php
===================================================================
--- src/wp-includes/class-phpmailer.php	(revision 33407)
+++ src/wp-includes/class-phpmailer.php	(working copy)
@@ -1203,7 +1203,7 @@
         }
         if ($this->Sender != '' and !ini_get('safe_mode')) {
             $old_from = ini_get('sendmail_from');
-            ini_set('sendmail_from', $this->Sender);
+            @ini_set('sendmail_from', $this->Sender);
         }
         $result = false;
         if ($this->SingleTo && count($toArr) > 1) {
@@ -1216,7 +1216,7 @@
             $this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From);
         }
         if (isset($old_from)) {
-            ini_set('sendmail_from', $old_from);
+            @ini_set('sendmail_from', $old_from);
         }
         if (!$result) {
             throw new phpmailerException($this->lang('instantiate'), self::STOP_CRITICAL);
@@ -2358,7 +2358,7 @@
                     //Doesn't exist in PHP 5.4, but we don't need to check because
                     //get_magic_quotes_runtime always returns false in 5.4+
                     //so it will never get here
-                    ini_set('magic_quotes_runtime', false);
+                    @ini_set('magic_quotes_runtime', false);
                 }
             }
             $file_buffer = file_get_contents($path);
@@ -2367,7 +2367,7 @@
                 if (version_compare(PHP_VERSION, '5.3.0', '<')) {
                     set_magic_quotes_runtime($magic_quotes);
                 } else {
-                    ini_set('magic_quotes_runtime', $magic_quotes);
+                    @ini_set('magic_quotes_runtime', $magic_quotes);
                 }
             }
             return $file_buffer;
Index: src/wp-includes/load.php
===================================================================
--- src/wp-includes/load.php	(revision 33407)
+++ src/wp-includes/load.php	(working copy)
@@ -270,19 +270,19 @@
 		error_reporting( E_ALL );
 
 		if ( WP_DEBUG_DISPLAY )
-			ini_set( 'display_errors', 1 );
+			@ini_set( 'display_errors', 1 );
 		elseif ( null !== WP_DEBUG_DISPLAY )
-			ini_set( 'display_errors', 0 );
+			@ini_set( 'display_errors', 0 );
 
 		if ( WP_DEBUG_LOG ) {
-			ini_set( 'log_errors', 1 );
-			ini_set( 'error_log', WP_CONTENT_DIR . '/debug.log' );
+			@ini_set( 'log_errors', 1 );
+			@ini_set( 'error_log', WP_CONTENT_DIR . '/debug.log' );
 		}
 	} else {
 		error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );
 	}
 	if ( defined( 'XMLRPC_REQUEST' ) )
-		ini_set( 'display_errors', 0 );
+		@ini_set( 'display_errors', 0 );
 }
 
 /**