PHP restore_error_handler() 函数
Example
在通过 set_error_handler() 函数更改错误处理函数之后对其进行恢复：
<?php
// 用户定义的错误处理函数
function myErrorHandler($errno, $errstr, $errfile, $errline) {
echo "<b>Custom error:</b> [$errno] $errstr<br>";
echo " Error on line $errline in $errfile<br>";
}
// Set user-defined error handling function
set_error_handler("myErrorHandler");
$test=2;
// Trigger error
if ($test>1) {
trigger_error("A custom error has been triggered");
}
// Restore the previous error handling function
restore_error_handler();
// Trigger error again
if ($test>1) {
trigger_error("A custom error has been triggered");
}
?>
The output of the above code is similar to this:
Custom error: [1024] A custom error has been triggered Error on line 14 in C:\webfolder\test.php Notice: A custom error has been triggered in C:\webfolder\test.php on line 21
Definition and usage
restore_error_handler() function restores the previous error handler.
After changing the error handling function with set_error_handler(), this function can be used to restore the previous error handler.
Tip:The previous error handling function can be built-in or user-defined.
Syntax
restore_error_handler();
Technical details
| Return value: | Always return TRUE. |
|---|---|
| PHP version: | 4.0.1+ |
