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PHP提供register_shutdown_function()这个函数，能够在脚本终止前回调注册的函数

register_shutdown_function例子代码:

以下为引用的内容：

function Test()

{ if(!file_exists(‘Test.txt’)){ //判断如果文件不存在!!

echo ‘文件不存在,我要创建一个:’;

$Str = fopen(‘Test.txt’,”w+”);

fwrite($Str,’you are write after exit’);

fclose($Str);

echo “创建完成!”;

}else { //如果存在;

echo ‘文件已经存在’;

}

}

register_shutdown_function(‘Test’);

for($i=0;$i<10;$i++){

echo “Echo
“;

}

exit;

?>

There is a note “Shutdown function is called during the script shutdown so headers are always already sent.”, but my php 5.1 seems to act differently.

Example:

以下为引用的内容：

class Test {

private $running;

public function main() {

$this->running = true;

ob_start();

error_reporting(E_ALL);

register_shutdown_function(array($this, “clean_exit”));

echo “Hello”;

// triggers E_ERROR

$fatal->error();

$this->running = false;

}

public function clean_exit() {

if ($this->running) {

header(“Location: error.php”);

}

}

}

$t = new Test();

$t->main();

?>

This example redirects you on error.php, this could be a simple way to handle E_ERROR