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影响PHP+MYSQL执行速度的写法对比第1/7页

WBOY
WBOYOriginal
2016-06-13 12:34:24815browse

[code]include_once("../db.php"); 

if($_GET[x2]==0 and $_GET[x1]==0) 

$t=" s1='' "; 
}else 



if($_GET[x2]!=0) 

$t=" x2='$_GET[x2]' "; 
}else 
if($_GET[x1]!=0) 

$t=" x1='$_GET[x1]' and x2=0 "; 




$query = "select count(*) from ask_member  where  $t   "; 
$result2 = mysql_db_query($DataBase, $query); 
$r3 = mysql_fetch_array($result2); 
$amount=$r3[0]; 
$page_size=5; 
if($amount%$page_size==0 and $amount>0) 

$pagecount=($amount/$page_size); 
}else 

$pagecount=intval($amount/$page_size)+1; 

if($_GET

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