throw an Exception when header is already been sent

cakephp · Jul 29, 2014 · 792c251 · 792c251
1 parent 3c1d3ee
commit 792c251
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/lib/Cake/Network/CakeResponse.php b/lib/Cake/Network/CakeResponse.php
@@ -518,14 +518,16 @@ protected function _setContentLength() {
  * @param string $value the header value
  * @return void
  */
-	protected function _sendHeader($name, $value = null) {
-		if (!headers_sent()) {
+    protected function _sendHeader($name, $value = null) {
+		if (!headers_sent($filename, $linenum)) {
 			if ($value === null) {
 				header($name);
 			} else {
 				header("{$name}: {$value}");
 			}
-		}
+		} else {
+            throw new Exception("Headers already sent in $filename on line $linenum\n");
+        }
 	}
 
 /**