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Homephp教程PHP源码PHP动态网页程序优化及高效提速问题

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传递数组时使用 return 比使用 global 要高效,比如:

function userloginfo($usertemp){

$detail=explode("",$usertemp);

return $detail;

}

$login=userloginfo($userdb);



function userloginfo($usertemp){

global $detail;

$detail=explode("",$usertemp);

}

userloginfo($userdb);

要高效

二、 (这个代码用于得到程序目录对应的网址,推荐使用)

$urlarray=explode('/',$HTTP_SERVER_VARS['REQUEST_URI']);

$urlcount=count($urlarray);unset($urlarray[$urlcount-1]);

$ofstarurl='http://'.$HTTP_SERVER_VARS['HTTP_HOST'].implode('/',$urlarray);

这段代码比

$pre_urlarray=explode('/',$HTTP_SERVER_VARS['HTTP_REFERER']);

$pre_url=array_pop($pre_urlarray);

要高效

三、 在循环中判定时,数值判定使用恒等要比等于高效

$a=2;$b=2;

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