fix efree  Inferior 1 exited with code 01

在以下环境 efree 会导致php进程退出  Inferior 1 (process 25645) exited with code 01，原因未知
去掉动态分配内存

PHP Api Version:         20090626
Zend Module Api No:      20090626
Zend Extension Api No:   220090626

PHP 5.3.10-1ubuntu3.15 with Suhosin-Patch