ຫົວຫຼັກ restore_error_handler() PHP
Example
ພະຍາຍາມຟື້ນຟູກຂອງຫົວຫຼັກຄວາມບັນຫາຫຼັງຈາກທີ່ໄດ້ປ່ຽນຫົວຫຼັກຄວາມບັນຫາດ້ວຍ set_error_handler()
<?php
// ຫົວຫຼັກຄວາມບັນຫາທີ່ອອກໂດຍຜູ້ນຳໃຊ້
function myErrorHandler($errno, $errstr, $errfile, $errline) {
echo "<b>ຄວາມບັນຫາສະເພາະ:</b> [$errno] $errstr<br>";
echo " Error on line $errline in $errfile<br>";
}
// Set user-defined error handler
set_error_handler("myErrorHandler");
$test=2;
// Trigger error
if ($test>1) {
trigger_error("A custom error has been triggered");
}
// Restore previous error handler
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 handler with set_error_handler(), this function can be used to restore the previous error handler.
Tip:The previous error handler can be either built-in or a user-defined function.
Syntax
restore_error_handler();
Technical Details
| Return value: | Always returns TRUE. |
|---|---|
| PHP Version: | 4.0.1+ |
