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);
比
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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