Use isset() for performance. Same difference.

thebeline · thebeline · commit 425daed8d0b0 · 2015-11-04T15:14:36.000-05:00
diff --git a/src/Curl/CaseInsensitiveArray.php b/src/Curl/CaseInsensitiveArray.php
@@ -136,7 +136,8 @@ public function offsetUnset($offset) {
      */
     public function offsetGet($offset) {
         $offsetlower = strtolower($offset);
-        return array_key_exists($offsetlower, $this->data) ? $this->data[$offsetlower] : NULL;
+        // As isset() is false on 'NULL' anyway, use it, and return NULL, faster
+        return isset($this->data[$offsetlower]) ? $this->data[$offsetlower] : NULL;
     }
 
     /**

Original file line number	Diff line number	Diff line change
`@@ -136,7 +136,8 @@ public function offsetUnset($offset) {`
`136`	`136`	`*/`
`137`	`137`	`public function offsetGet($offset) {`
`138`	`138`	`$offsetlower = strtolower($offset);`
`139`		`- return array_key_exists($offsetlower, $this->data) ? $this->data[$offsetlower] : NULL;`
	`139`	`+ // As isset() is false on 'NULL' anyway, use it, and return NULL, faster`
	`140`	`+ return isset($this->data[$offsetlower]) ? $this->data[$offsetlower] : NULL;`
`140`	`141`	`}`
`141`	`142`
`142`	`143`	`/**`