-2
下面我發佈了代碼!任何事情都會有幫助!我從網站上得到這個,因爲我無法弄清楚。它工作並顯示在用戶名輸入下,但它總是會說用戶名是可用的。我甚至創建了一個用戶'bob',當我輸入用戶名'bob'時,它表示它可用。Ajax用戶名檢查一直返回true(代碼發佈)
阿賈克斯
<script type="text/javascript">
var timeout = null;
var subdomainOK = true;
$(function() {
$("form").submit(function() {
if (!subdomainOK) { return false; }
if (!$('#TermsCB').is(':checked')) {
$('#TermsValidation').html("You need to accept the terms and conditions");
return false;
}
if ($(this).valid()) {
$('[type=submit]').button('loading');
}
return true;
});
});
function check_availability(){
//get the username
var username = $('#Subdomain').val();
//use ajax to run the check
$.post("inc/accountcheck.php", { username: username },
function(result){
//if the result is 1
if(result = 0){
//show that the username is available
$('#SubdomainValidation').html(username + ' is Taken');
}else{
//show that the username is NOT available
$('#SubdomainValidation').html(username + ' is Available');
}
});
}
</script>
腓
<?php
//connect to database
mysql_connect('localhost', 'root', 'seadude246');
mysql_select_db('socialdb');
//get the username
$username = mysql_real_escape_string($_POST['Subdomain']);
//mysql query to select field username if it's equal to the username that we check '
$result = mysql_query('select username from users where username = "'. $username .'"');
//if number of rows fields is bigger them 0 that means it's NOT available '
if(mysql_num_rows($result)>0){
//and we send 0 to the ajax request
echo 0;
}else{
//else if it's not bigger then 0, then it's available '
//and we send 1 to the ajax request
echo 1;
}
?>
添加一個評論而不是一個答案 - 現在有點累得累了,不信任自己 - 是一個'if(result = 0)'應該是一個'if(result == 0)'? – Helpful