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关于php中isset的问题

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Jun 20, 2016 pm 12:32 PM

if ( isset($_POST['pass']) & isset($_POST['name']) & @MD5($_POST['pass'])==" admin" & @$_POST['name']==" admin" )

这一句中为什么我在前端输入用户名admin跟密码admin时始终进不去呢？

if ( isset($_POST['pass']) & isset($_POST['name']) & @MD5($_POST['pass'])==" admin" & @$_POST['name']==" admin" )
{
?>

}else{
?>

}
?>

回复讨论(解决方案)

MD5($_POST['pass'])=="admin"
这是永远都不会成立的
md5 对任何值（包括空串）都返回一个长度为 32 字节的串

一个&是位运算
两个&&才是并且关系

还有任何md5的值都是32位的字符串

应该怎样修改呢

if ( isset($_POST['pass']) && isset($_POST['name']) && $_POST['pass']=="admin" && $_POST['name']=="admin" )

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