Merge pull request #65 from alpha0010/master

Improve quoting performance

Author: oohnoitz

src/Drivers/Mysqli/Connection.php

@@ -251,7 +251,10 @@ public function multiQuery(Array $queue)
      */
     public function escape($value)
     {
-        $this->ping();
+        if ($this->connection === null) {
+            // this function is called a lot, making ping a significant cost if called every time
+            $this->ping();
+        }
 
         if (($value = $this->getConnection()->real_escape_string((string) $value)) === false) {
             // @codeCoverageIgnoreStart

src/Helper.php

@@ -203,14 +203,11 @@ public function callSnippets($data, $index, $query, $options = array())
         array_unshift($options, $data, $index, $query);
 
         $arr = $this->getConnection()->quoteArr($options);
-        array_walk(
-            $arr,
-            function (&$val, $key) {
-                if (is_string($key)) {
-                    $val = $val.' AS '.$key;
-                }
+        foreach ($arr as $key => &$val) {
+            if (is_string($key)) {
+                $val .= ' AS '.$key;
             }
-        );
+        }
 
         return $this->query('CALL SNIPPETS('.implode(', ', $arr).')');
     }