php计划任务之ignore_user_abort函数实现方法，ignoreuserabort
本文实例讲述了php计划任务之ignore_user_abort函数实现方法。分享给大家供大家参考。具体分析如下：
PHP 不会检测到用户是否已断开连接,直到尝试向客户机发送信息为止,简单地使用 echo 语句无法确保信息发送,参阅 flush() 函数,代码如下:
复制代码 代码如下:
ignore_user_abort(true);
set_time_limit(0);
while(1) {
$fp = fopen('time_task.txt',"a+");
$str = date("Y-m-d h:i:s")."nr";
fwrite($fp,$str);
fclose($fp);
sleep(5); //半小时执行一次
}
?>
定义和用法
ignore_user_abort() 函数设置与客户机断开是否会终止脚本的执行,本函数返回 user-abort 设置的之前的值(一个布尔值).
语法:ignore_user_abort(setting)
| 参数 | 描述 |
| setting | 可选,如果设置为 true,则忽略与用户的断开,如果设置为 false,会导致脚本停止运行,如果未设置该参数,会返回当前的设置. |
提示和注释
注释:PHP 不会检测到用户是否已断开连接,直到尝试向客户机发送信息为止,简单地使用 echo 语句无法确保信息发送,参阅 flush() 函数.
希望本文所述对大家的php程序设计有所帮助。
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