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ob_有关的函数

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Jun 13, 2016 am 11:11 AM

httppushstart

ob_相关的函数
ob_相关的函数
一般用在什么场景啊怎么用呀
有相关资料没

求地址...................

------解决方案--------------------
你问得太笼统了,我想你是想问ob_start。
http://cn2.php.net/ob_start
------解决方案--------------------
给你举个例子

你知道http请求是一次request会有一次response。那么在你安装某些开源程序的时候，你会发现它可以动态的显示安装进度:
正在安装xxx...
安装完毕(x秒后)
正在检查目录和文件权限...
检查完毕，权限正常...(x秒后)

每一行都是逐渐输出的，而不是一次性。这其实就是利用了服务器push的方法。还有一些用php做的聊天室。都是用服务器push方法实现的。

这就需要用到ob_get_contents,flush,ob_flush等函数，让服务器不缓冲结果，即时输出达到的效果。如果你什么都不设置，默认情况下就是ob_start的状态。

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