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php for循环时间控制没秒钟输出一次解决办法

Jun 13, 2016 pm 01:37 PM
echo for php

php for循环时间控制没秒钟输出一次
ob_end_clean();
echo str_pad(' ', 256);
for ($i=10; $i>0; $i--)
{ echo $i;
flush();
sleep(5);

?>
网上找到这样一段代码,想每秒钟间隔输出!结果发现在火狐里没用,ie里却可以,坑爹啊,不要告诉我,php有浏览器差异!

------解决方案--------------------
因为 你太傻
------解决方案--------------------
花了点时间查了下这个问题,大概是这样的:默认情况下b/s结构为浏览器主动拉数据,ie浏览器在接受256个字节的数据后就开始显示信息了,火狐则会等服务端程序执行完毕才一并显示
我们可以加上一个http头让b/s结构变成服务器主动推送的的模式,这样火狐在接收到数据就开始显示,ie接收到256个字节的数据才开始显示:

PHP code
header("Content-type: multipart/x-mixed-replace;");
echo str_pad(' ', 256);//如果去掉这一行,会出现和楼主代码相反的效果
for($i=0;$i
                 
              
              
        
            
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