Ajax 电子邮件可用性检查 php 无效
Ajax email Availability check with php not working
我想查看电子邮件是否可用,但无法使用。我也是 javascript 的新手,ajax 请帮助我。
这是我的代码
带跨度的电子邮件输入以显示输出(目前没有输出)
<input class="input--style-4" id="email" type="email" name="email" required>
<span id="user-availability-status"></span>
JS
<script>
$(document).ready(function() {
$('#email').blur(function() {
var email = $(this).val();
$.ajax({
url: 'includes\emailAvailability.php',
method: "POST",
data: {
email_val: email
},
success: function(data) {
if (data != 0) {
$('#user-availability-status').html('<span>Username blah not available</span>');
$('#register').attr("disabled", true);
} else {
$('#user-availability-status').html('<span>Username blah Available</span>');
$('#register').attr("disabled", false);
}
}
})
});
});
</script>
PHP 文件
<?php
if (isset($_POST["email_val"])) {
include("DbConn.php");
$email = mysqli_real_escape_string($conn, $_POST["email_val"]);
$query = "SELECT * FROM customer WHERE email = '" . $email . "'";
$result = mysqli_query($conn, $query);
echo mysqli_num_rows($result);
}
你可以使用类型:"POST" 而不是方法:"POST" 我认为工作谢谢
你应该检查 link 我在评论中提到了你的完整答案。
这是一个简单的代码示例。
include("DbConn.php");
// Set alerts as array
$error = "";
// I should just trrim and let you check if email is empty .lol
if (empty($_POST["email_val"])) {
$error .= "<p class='error'>Fill email value.</p>";
//Check if this is a real email
} elseif(!filter_var($_POST["email_val"],FILTER_VALIDATE_EMAIL)){
$error .= "<p class='error'>Wrong email type.</p>";
}else{
$email = mysqli_real_escape_string($conn, $_POST["email_val"]);
//You should use prepare statement $email, Shame on you .lol
$query = "SELECT * FROM customer WHERE email = '{$email}'");
$result = mysqli_query($conn, $query);
echo mysqli_num_rows($result);
$error .= "ok";
}
$data = array(
'error' => $error
);
这个Jquery:
$(document).ready(function(){
$('#myform').submit(function(event){
event.preventDefault();
var formValues = $(this).serialize();
$.ajax({
url:"includes\emailAvailability.php",
method:"POST",
data:formValues,
dataType:"JSON",
success:function(data){
if(data.error === 'ok'){
$('#result').html(data.error);
} else {
$('#result').html(data.error);
$('#myform')[0].reset();
}
}
});
});
});
和Html:
<form id="myform">
<input class="input--style-4" id="email" type="email" name="email_val">
<span id="result"></span>
<button type="button" class="btn btn-primary">Send</button>
</form>
我想查看电子邮件是否可用,但无法使用。我也是 javascript 的新手,ajax 请帮助我。
这是我的代码 带跨度的电子邮件输入以显示输出(目前没有输出)
<input class="input--style-4" id="email" type="email" name="email" required>
<span id="user-availability-status"></span>
JS
<script>
$(document).ready(function() {
$('#email').blur(function() {
var email = $(this).val();
$.ajax({
url: 'includes\emailAvailability.php',
method: "POST",
data: {
email_val: email
},
success: function(data) {
if (data != 0) {
$('#user-availability-status').html('<span>Username blah not available</span>');
$('#register').attr("disabled", true);
} else {
$('#user-availability-status').html('<span>Username blah Available</span>');
$('#register').attr("disabled", false);
}
}
})
});
});
</script>
PHP 文件
<?php
if (isset($_POST["email_val"])) {
include("DbConn.php");
$email = mysqli_real_escape_string($conn, $_POST["email_val"]);
$query = "SELECT * FROM customer WHERE email = '" . $email . "'";
$result = mysqli_query($conn, $query);
echo mysqli_num_rows($result);
}
你可以使用类型:"POST" 而不是方法:"POST" 我认为工作谢谢
你应该检查 link 我在评论中提到了你的完整答案。
这是一个简单的代码示例。
include("DbConn.php");
// Set alerts as array
$error = "";
// I should just trrim and let you check if email is empty .lol
if (empty($_POST["email_val"])) {
$error .= "<p class='error'>Fill email value.</p>";
//Check if this is a real email
} elseif(!filter_var($_POST["email_val"],FILTER_VALIDATE_EMAIL)){
$error .= "<p class='error'>Wrong email type.</p>";
}else{
$email = mysqli_real_escape_string($conn, $_POST["email_val"]);
//You should use prepare statement $email, Shame on you .lol
$query = "SELECT * FROM customer WHERE email = '{$email}'");
$result = mysqli_query($conn, $query);
echo mysqli_num_rows($result);
$error .= "ok";
}
$data = array(
'error' => $error
);
这个Jquery:
$(document).ready(function(){
$('#myform').submit(function(event){
event.preventDefault();
var formValues = $(this).serialize();
$.ajax({
url:"includes\emailAvailability.php",
method:"POST",
data:formValues,
dataType:"JSON",
success:function(data){
if(data.error === 'ok'){
$('#result').html(data.error);
} else {
$('#result').html(data.error);
$('#myform')[0].reset();
}
}
});
});
});
和Html:
<form id="myform">
<input class="input--style-4" id="email" type="email" name="email_val">
<span id="result"></span>
<button type="button" class="btn btn-primary">Send</button>
</form>