PHP restore_error_handler() 函數
完整的PHP Error參考手冊 定義和用法
restore_error_handler() 函數恢復之前的錯誤處理程序。
該函數用於在通過set_error_handler() 函數改變後恢復之前的錯誤處理程序。
該函數總是返回TRUE。
語法
restore_error_handler()
提示和註釋
提示：之前的錯誤處理程序可能是在內建的錯誤處理程序或用戶自定義函數中構建的。
實例
<?php
//custom error handler function
function customError($errno, $errstr, $errfile, $errline)
{
echo "<b>Custom error:</b> [$errno] $errstr<br />";
echo " Error on line $errline in $errfile<br />";
}
//set user-defined error handler
set_error_handler("customError");
$test=2;
//trigger error
if ($test>1)
{
trigger_error("A custom error has been triggered");
}
//restore built-in error handler
restore_error_handler();
//trigger error again
if ($test>1)
{
trigger_error("A custom error has been triggered");
}
?>
//custom error handler function
function customError($errno, $errstr, $errfile, $errline)
{
echo "<b>Custom error:</b> [$errno] $errstr<br />";
echo " Error on line $errline in $errfile<br />";
}
//set user-defined error handler
set_error_handler("customError");
$test=2;
//trigger error
if ($test>1)
{
trigger_error("A custom error has been triggered");
}
//restore built-in error handler
restore_error_handler();
//trigger error again
if ($test>1)
{
trigger_error("A custom error has been triggered");
}
?>
上面代碼的輸出如下所示：
Custom error:[1024] A custom error has been triggered
Error on line 14 in C:webfoldertest.php
Notice: A custom error has been triggered in
C:webfoldertest.phpon line21
Error on line 14 in C:webfoldertest.php
Notice: A custom error has been triggered in
C:webfoldertest.phpon line21
完整的PHP Error參考手冊