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JQuery ajax verify username exists

巴扎黑
Release： 2023-03-02 18:06:01
Original
1152 people have browsed it

Actually, there are many examples of this on the Internet, but when I was doing it, I ran into some problems, and finally found a solution to the problem, so I wanted to post it and record it as a warning.

The code is as follows:

 用户名:
Copy after login 
$('#cname').blur(function(){ if($('#uname').val() == ''){ $('#result').html("不能为空"); } else{ //var str = 'cname='+$('#cname').val(); $.get('test.php',{username:$('#uname').val()},function(data){ $('#result').html(""+data+""); }); } });
Copy after login 
 0){ echo "已存在"; exit; } else{ echo "可以注册"; exit; } ?>
Copy after login


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