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判断$_post的值
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- 2016-06-23 13:30:581384browse
1.$_post的值如何判断？
if(isset($_POST["username"])=""){echo"kong";}elseif(isset($_POST["username"])!="admin"){echo"kong";} 上面的写法对吗？
回复讨论(解决方案)
if(isset($_POST["username"]) && $_POST["username"] == '') { echo"kong";}elseif(isset($_POST["username"]) && $_POST["username"] != "admin") { echo"kong";}
if (isset($_POST['username']) && (empty($_POST['username']) || $_POST['username'] !== 'admin')) { echo 'kong';//空或不等于admin} elseif (isset($_POST['username']) && $_POST["username"] == 'admin') { echo "yes";//管理员}
if(isset($_POST["username"]) && $_POST["username"] == '') { echo"kong";}elseif(isset($_POST["username"]) && $_POST["username"] != "admin") { echo"kong";} if(!isset($_POST["username"]) && $_POST["username"] == '')
多谢！
if (isset($_POST['username']) && (empty($_POST['username']) || $_POST['username'] !== 'admin')) { echo 'kong';//空或不等于admin} elseif (isset($_POST['username']) && $_POST["username"] == 'admin') { echo "yes";//管理员} 判断非空还可以用empty来。。。学习了！
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