The Login button should only be enabled when the user enters a valid e-mail address into the Username field. Currently e-mail validation is handled through a PHP script. Any suggestions, alternatives or documentation to look into would be great.
index.html
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="login-input">
<form action="login.php" method="post" class="ajax">
<p>
<input id="login-username" type="text" name="username" placeholder="Username">
</p>
<p>
<input id ="login-password" type="password" name="password" placeholder="Password">
</p>
<p>
<input id="login-submit-btn" type="submit" value="LOGIN" disabled>
</p>
</form>
</div>
</body>
</html>
main.js
$(document).ready(function() {
$('form.ajax').submit(function(event) {
var data = {
username: $('#login-username').val(),
password: $('#login-password').val()
};
$.ajax({
url: "login.php",
type: "POST",
data: data,
success: function(data) {
event.preventDefault();
console.log(data);
}
});
return false;
});
});
login.php
<?php
$input_username = $_POST['username'];
$input_password = $_POST['password'];
if(isset($input_username, $input_password)) {
if(filter_var($input_username, FILTER_VALIDATE_EMAIL)) {
echo " email format is valid ";
}
else {
echo " email format is invalid ";
}
}
?>