我使用jquery来验证表单,检查math-captcha,最后发送邮件。
验证工作正常,邮件工作正常。只有一个问题。当我的ajax返回false时,bool validCaptcha始终保持为true ...
$(document).ready(function() {
$("#confirm").on("click", function(e) {
e.preventDefault();
//Check name
var validName = true;
if ($("#name").val().length == 0) {
$("#name").addClass('error');
validName = false;
}
$("#name").change(function() {
$("#name").removeClass('error');
})
//Check email
var validEmail = true;
if ($("#email").val().length == 0 || validateEmail($("#email").val()) != true) {
$("#email").addClass('error');
validEmail = false;
}
$("#email").change(function() {
$("#email").removeClass('error');
})
//Check message
var validMessage = true;
if ($("#message").val().length == 0) {
$("#message").addClass('error');
validMessage = false;
}
$("#message").change(function() {
$("#message").removeClass('error');
})
//Check captcha
var validCaptcha = true;
$.ajax({
type: 'POST',
url: '../captcha/checkCaptcha.php',
data: $("#mailform").serialize(),
success: function(data) {
var result = $.trim(data);
if (result == 'false') {
$("#inputcaptcha").addClass('error');
validCaptcha = false;
} else if (result == 'true') {
$("#inputcaptcha").removeClass('error');
}
}
});
//Send email
if (validName == true && validEmail == true && validMessage == true && validCaptcha == true) {
$.ajax({
type: 'POST',
url: '../sendMail.php',
data: $("#mailform").serialize(),
success: function(data) {
var result = $.trim(data);
if (result == 'true') {
$("#succesmessage").removeClass('hidden');
}
else if (result == 'false') {
$("#failmessage").removeClass('hidden');
}
}
});
} else {
reloadCaptcha();
$("#inputcaptcha").val("");
}
});
});
在Firebug中,我看到我从checkCaptcha.php那里得到一个'假'回来,例如我留下了输入错误代码的字段。
checkCaptcha.php
session_start();
if ( !empty($_POST['inputcaptcha']) ) {
if ( $_POST['inputcaptcha'] == $_SESSION['security_number'] ) {
echo 'true';
}
else {
echo 'false';
}
}
else {
echo 'false';
}
要检查我是否首先检查了captcha-ajax
中的结果值alert(result)
//returned false as it should when leaving blank or entering wrong value
然后在调用mail-ajax之前,我调用了所有bools
alert('validName='+validName+' & validEmail='+validEmail+' & validMessage='+validMessage+' & validCaptcha='+validCaptcha);
//validCaptcha was true, even when result was false...
我什么都看不到?
答案 0 :(得分:2)
简单地说,由于验证验证码是异步请求,因此无法执行此操作,
相反,您可以将电子邮件代码移至验证验证码成功处理程序,如
$(document).ready(function () {
$("#confirm").on("click", function (e) {
e.preventDefault();
//Check name
var validName = true;
if ($("#name").val().length == 0) {
$("#name").addClass('error');
validName = false;
}
$("#name").change(function () {
$("#name").removeClass('error');
})
//Check email
var validEmail = true;
if ($("#email").val().length == 0 || validateEmail($("#email").val()) != true) {
$("#email").addClass('error');
validEmail = false;
}
$("#email").change(function () {
$("#email").removeClass('error');
})
//Check message
var validMessage = true;
if ($("#message").val().length == 0) {
$("#message").addClass('error');
validMessage = false;
}
$("#message").change(function () {
$("#message").removeClass('error');
})
//Check captcha
var validCaptcha = true;
if (validName == true && validEmail == true && validMessage == true) {
$.ajax({
type: 'POST',
url: '../captcha/checkCaptcha.php',
data: $("#mailform").serialize(),
success: function (data) {
var result = $.trim(data);
if (result == 'false') {
$("#inputcaptcha").addClass('error');
} else if (result == 'true') {
$("#inputcaptcha").removeClass('error');
$.ajax({
type: 'POST',
url: '../sendMail.php',
data: $("#mailform").serialize(),
success: function (data) {
var result = $.trim(data);
if (result == 'true') {
$("#succesmessage").removeClass('hidden');
reloadCaptcha();
$("#inputcaptcha").val("");
} else if (result == 'false') {
$("#failmessage").removeClass('hidden');
}
}
});
}
}
});
}
});
});