本文实例讲述了PHP间隔一段时间执行代码的方法。分享给大家供大家参考。具体分析如下:
PHP如何设置每隔一段时间自动执行某段代码?例如定时生成静态文件之类的,这就需要设置休眠时间,即每隔一段时间程序就会调用某段代码.
代码如下:
set_time_limit(0); // 执行时间为无限制,php默认执行时间是30秒,可以让程序无限制的执行下去
$interval=24*60*60; // 每隔一天运行一次
do{
sleep($interval); // 按设置的时间等待一小时循环执行
$sql="update blog set time=now()";
...... //其他操作
}while(true);
希望本文所述对大家的PHP程序设计有所帮助。

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