PHP忽略自定义错误处理程序[重复]

Possible Duplicate:
How do I catch a PHP Fatal Error

I want to create a custom error handler but PHP ignores it still uses the built in error handler. The example below gives a built in fatal error because test() is not defined:

 function critical_error($error_number,$error_string,$error_file,$error_line,$error_context) {
     echo "<strong>error:</strong> echo ".$error_string;
     exit();
 }

 set_error_handler("critical_error",8191);
 test();
 exit;

Any advice?

You are probably defining the error level wrong. Try using:

set_error_handler("critical_error", E_ALL);

Also notice that:

The following error types cannot be handled with a user defined function: E_ERROR, E_PARSE, E_CORE_ERROR, E_CORE_WARNING, E_COMPILE_ERROR, E_COMPILE_WARNING, and most of E_STRICT raised in the file where set_error_handler() is called.

But without your complete script (including test()) it's hard to tell. I've tested it on my local server and everything works fine.