submit_checkuser.php

论坛管理系统php＋mysql

<?php include "../conn.php";?>
<?php  $query="select * from hw_user where username='$sname'";
        $result=mysql_query($query);
        if ($username!=""){
		   $nn=mysql_num_rows($result);
		   if ($nn==1) {$yhjc="可以发送";
		   } else {
		   $yhjc="此用户不存在！";} }
?>