php输出错误信息

error_reporting(E_ALL);
function cache_shutdown_error() {
          $_error = error_get_last();
          if ($_error && in_array($_error[‘type‘], array(1, 4, 16, 64, 256, 4096, E_ALL))) 
{
                    header("Content-Type: text/html; charset=utf-8");
                    echo ‘<font color=red>你的代码出错了：</font></br>‘;
                    echo ‘致命错误:‘ . $_error[‘message‘] . ‘</br>‘;
                    echo ‘文件:‘ . $_error[‘file‘] . ‘</br>‘;
                    echo ‘在第‘ . $_error[‘line‘] . ‘行</br>‘;
                }
            }
 register_shutdown_function("cache_shutdown_error");