select SUM(daxiao) as size where username like '韩%';
LIKE % 匹配任何数目的字符,甚至包括零字符 _ 只能匹配一种字符
as size给他起个外号叫size.
可以的,输出 $result['size'];都给他起外号了就用外号吧
哦,那就叫外号吧,给newnew哥个面子
<?php session_start(); $sbx=$_SESSION[name]; include "img/ddddd.php"; $sql=mysql_query("select SUM(daxiao) as size from readuser where username ='$sbx'"); echo $sql['size']; ?> 什么都没有啊
$sql=mysql_query("select SUM(daxiao) as size from readuser where username ='$sbx'") or die( mysql_error() ); $result = mysql_fetch_assoc($sql); echo $result['size'];
匹配任何数目的字符,甚至包括零字符
_
只能匹配一种字符
session_start();
$sbx=$_SESSION[name];
include "img/ddddd.php";
$sql=mysql_query("select SUM(daxiao) as size from readuser where username ='$sbx'");
echo $sql['size'];
?>
什么都没有啊
$result = mysql_fetch_assoc($sql);
echo $result['size'];