php的register_shutdown_function详解
点击次数：80 次 发布日期：2008-10-28 09:42:20 作者：源代码网
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源代码网整理以下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
源代码网整理以下register_shutdown_function例子代码:
源代码网整理以下
| 以下为引用的内容：
源代码网整理以下 <?php
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<br/>";
}
exit;
?>
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源代码网整理以下 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:
源代码网整理以下
以下为引用的内容： <?php
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();
$this->running = false;
}
源代码网整理以下
源代码网整理以下 public function clean_exit() {
if ($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.
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源代码网供稿. |
