我正在尝试创建一个注册表单来检查用户是否存在于数据库中,我插入了一个示例用户,当我尝试与该用户注册时,它并没有说它已经被使用。我做错了什么?
JavaScript:
function formSubmit()
{
document.getElementById('email_valid').innerHTML = '';
var temail=document.forms["signup_form"]["temail"].value.replace(/^\s+|\s+$/g, '');
var atpos=temail.indexOf("@");
var dotpos=temail.lastIndexOf(".");
if (atpos<1 || dotpos<atpos+2 || dotpos+2>=temail.length)
{
//alert("Not a valid e-mail address");
setTimeout(function(){document.getElementById('email_valid').innerHTML = '<br/>Email must be valid...';},1000);
var temailsub=0;
}
else
{
$.post('/resources/forms/signup/email.php',{email: temail}, function(data){
document.getElementById('email_valid').innetHTML = data;
if(data.exists){
document.getElementById('email_valid').innetHTML = '<br/>The email address you entered is already in use.';
var temailsub=0;
}else{
var temailsub=1;
}
}, 'JSON');
}
if(temailsub==1e)
{
setTimeout(function(){document.getElementById("signup_form").submit();},1000);
}
else
{
return false;
}
}
PHP 文件(email.php):
<?php
header('content-type: text/json');
require_once $_SERVER['DOCUMENT_ROOT']."/resources/settings.php";
$query = $pdo->prepare("SELECT * FROM users WHERE email=:email");
$query->execute(array(
":email"=> $_POST['email']
));
echo json_encode(array('exists' => $query->rowCount() > 0));
?>
我已经检查并仔细检查了代码,我仍然看不出为什么它没有检测到电子邮件已被使用......我需要做些什么来解决这个问题并在未来避免这种情况?