MFH: plug leak on error (coverity issue #405)

ext/standard/array.c

@@ -4555,6 +4555,8 @@ PHP_FUNCTION(array_map)
 				efree(args);
 				efree(array_pos);
 				zval_dtor(return_value);
+				zval_ptr_dtor(&null);
+				efree(params);
 				RETURN_NULL();
 			}
 		}

ext/standard/tests/array/array_map_001.phpt

@@ -0,0 +1,23 @@
+--TEST--
+array_map() and exceptions in the callback
+--FILE--
+<?php
+
+$a = array(1,2,3);
+
+function foo() { 
+	throw new exception(1); 
+} 
+
+try { 
+	array_map("foo", $a, array(2,3)); 
+} catch (Exception $e) {
+	var_dump("exception caught!");
+}
+
+echo "Done\n";
+?>
+--EXPECTF--	
+Warning: array_map(): An error occurred while invoking the map callback in %s on line %d
+string(17) "exception caught!"
+Done