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Home Backend Development PHP Tutorial 实现echo 可以边执行边输出

实现echo 可以边执行边输出

Jun 23, 2016 pm 01:37 PM

$result = mysql_query("SELECT * FROM  `AA`  "); 
   
while($row = mysql_fetch_array($result))
{
  $dj=$row["DJ"];
  echo $dj;
}


$result = mysql_query("SELECT * FROM  `BB`  "); 
   
while($row = mysql_fetch_array($result))
{
  $dj=$row["DJ"];
  echo $dj;
}



租用的阿里服务器,原来可以实现第一个select输出完 再执行第二个select,升级完服务器后,现在是所有select 都执行完统一查询,这样感觉有点假死状态,请问怎么实现原来的边执行边输出啊 我现在用的是PHP5.2 是不是跟版本有问题


回复讨论(解决方案)

现在这个论坛没有人气了吗

可能是你之前的配置问题吧!
一般的配置都是要等页面整个运行完再进行输出的,没执行完的输出,保存在缓冲区中。
如果你想不等执行完就看到输出可以先取出缓冲区中的内容。
ob_flush;flush();

ob_flush();flush();

有种迂回的方法,写一个文件 1 2 3 4 5  然后前端AJAX 去请求读这个文件 实时输出状态.

至少你贴出的代码是不会有你描述的效果的(任何场合下都不会,除非你隐瞒了什么)

强制推出服务端缓冲(ob_flush、flush)只对部分服务器有效,并且与浏览器有关

?制?出???就可以。
ob_flush();
flush();
?考: http://blog.csdn.net/fdipzone/article/details/10367837

隔几秒执行程序,然后再缓冲输出,前提把你服务器的超时时间设置高些

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