我的邮件列表订阅的显然简单表单存在问题。
HTML5表单包含3个字段：
<input type="email" name="email" <input type="radio" value="subscribe" name="radio" <input type="radio" value="unsubscribe" name="radio" 文字输入 CAPTCHA 检查：<input type="text" name="captchavalue"
<form id="contact" name="contact" method="post" action="index.php" enctype="multipart/form-data">
<input type="hidden" name="check" value="01">
<small>*tutti i campi sono obbligatori</small>
<label for="email" id="emailabel">E-mail:<span class="err topp">INDIRIZZO NON VALIDO</span></label>
<input type="email" name="email" id="email" class="textemail">
<label for="subscr" id="subscrlabel">Scelta:<span class="err topp">devi selezionare una scelta</span></label>
<p><input type="radio" name="radio" id="radio" value="subscribe" checked>Iscrizione</p>
<p><input type="radio" name="radio" id="radio" value="unsubscribe">Cancellazione</p>
<img src="captcha.php" id="captchaimg">
<label for="captcha" id="captchalabel">Copiare il codice di verifica<span class="err capter">CAPTCHA ERRATO</span></label>
<input type="text" name="captchavalue" id="captchavalue" class="textcaptcha">
<section id="subber">
<a href="javascript:void(0);" name="submitlink" id="submitlink" class="btn">Invia richiesta</a>
</section>
</form>
</div>
我们有一个允许在外部文件.dat中包含请求订阅的域列表，PHP中的某些行动态创建正则表达式以检查电子邮件地址（仅在订阅的情况下，否则为任何有效的电子邮件地址是允许的）
<?php
$domains = file("domains.dat");
$domcount = count($domains);
for ($i=0; $i < $domcount; $i++) {
$regex .= "(".trim($domains[$i]).")|";
}
$regex = str_replace(".", "\.", $regex);
$regex = "/^([a-zA-Z\.-_0-9]*@(".substr($regex, 0, strlen($regex)-1).")$)/i";
?>
function checkValidCNRAddress(emailAddress) {
var pattern = new RegExp(<? echo $regex ?>);
return pattern.test(emailAddress);
};
function checkValidEmailAddress(emailAdd) {
var pattern = new RegExp(/^(("[\w-+\s]+")|([\w-+]+(?:\.[\w-+]+)*)|("[\w-+\s]+")([\w-+]+(?:\.[\w-+]+)*))(@((?:[\w-+]+\.)*\w[\w-+]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][\d]\.|1[\d]{2}\.|[\d]{1,2}\.))((25[0-5]|2[0-4][\d]|1[\d]{2}|[\d]{1,2})\.){2}(25[0-5]|2[0-4][\d]|1[\d]{2}|[\d]{1,2})\]?$)/i);
return pattern.test(emailAdd);
};
var mailsendstatus;
function userSendMailStatus(uemail,usubscr, ucaptcha) {
// statement below is for DEBUG purposes only -- to show the
// value of the radio button (subscription status) in ALL CASES
document.write(usubscr); //DEBUG
//check that a radio button option is checked (default: "subscribe" is checked )
if(!usubscr) {
$("#subscrlabel").children(".err").fadeIn('slow');
}
else if(usubscr) {
// we have *something* selected in the radio button for subscription
$("#subscrlabel").children(".err").fadeOut('slow');
// next, check for validate email addresses using regular expressions
//check on dynamic regex
if (usubscr == "subscribe") {
if(!checkValidCNRAddress(uemail)) {
$("#emailabel").children(".err").fadeIn('slow');
}
else if(checkValidCNRAddress(uemail)) {
$("#emailabel").children(".err").fadeOut('slow');
}
} //else check at least for a valid email address
else if (usubscr == "unsubscribe"){
if(!checkValidEmailAddress(uemail)) {
$("#emailabel").children(".err").fadeIn('slow');
}
else if(checkValidEmailAddress(uemail)) {
$("#emailabel").children(".err").fadeOut('slow');
}
}
}
然后检查验证码是否正常（它将数据发送到PHP页面captcha_check）然后提交给sendmail.php（负责将订阅/取消订阅请求发送到我们的邮件服务器）
// captcha check
$.ajax(
{
type: 'POST',
url: 'captcha_check.php',
data: $("#contact").serialize(),
success: function(data) {
if(data == "false") {
mailsendstatus = false;
$("#captchalabel").children(".err").fadeIn('slow');
}
else if(data == "true"){
$("#captchalabel").children(".err").fadeOut('slow');
if((checkValidCNRAddress(uemail))||(checkValidEmailAddress(uemail))) {
// in this case it's alright
// TRUE
mailsendstatus = true;
$("#subber").html('<img src="img/load.gif" alt="loading...">');
$.ajax(
{
type: 'POST',
url: 'sendmail.php',
data: $("#contact").serialize(),
success: function(data) {
if(data == "yes") {
$("#contactwrapper").slideUp(650, function(){
$(this).before("<p>La tua richiesta è stata inviata, grazie.</p>");
});
}
}
}
); //
} //
} //
} //
} //
);
return mailsendstatus;
}
$(document).ready(function(){
$("#contact").submit(function() { return false; });
$("#submitlink").bind("click", function(e){
var usercaptvalue = $("#captchavalue").val();
var emailvalue = $("#email").val();
var subscrvalue = $("#radio").val();
//sends values to sendmail.php
var postchecks = userSendMailStatus(emailvalue, subscrvalue, usercaptvalue);
});
});
</script>
</body>
有人可以向我解释一下： - 当脚本验证电子邮件地址时，给定的单选按钮的值总是＆＃34;订阅＆＃34;，无论如何，即使我检查取消订阅 - 但是如果我输入一个域名包含在domains.dat中的电子邮件地址并检查按钮是否取消订阅，则传递给sendmail.php的值是＆＃34;取消订阅＆＃34; （正如我收到电子邮件时所看到的那样）
希望它足够清楚......提前感谢您的宝贵帮助！
答案 0 :(得分：1)
您的问题是， NOT 实际向sendmail.php发送任何 AJAX 请求，除非该电子邮件有效当电子邮件有效时，仅。
您会看到，您在JavaScript中检查有效电子邮件地址的所有验证都是仅然后：
$("#subscrlabel").children(".err").fadeIn('slow'); <强> 或
$("#subscrlabel").children(".err").fadOut('slow'); 但是，这只发生在
页面上当您实际提交时，如果电子邮件无效，它将无法通过AJAX请求，但是，它仍然正常提交表单，因此它会重置为默认订阅输入状态“已检查”
在关闭功能后，您需要做的是在验证中包含.ajax(...)声明/调用，而不是在其下面：
var mailsendstatus;
function userSendMailStatus(uemail,usubscr, ucaptcha) {
//verify radio button (it's checked by default in our case)
if(!usubscr) {
$("#subscrlabel").children(".err").fadeIn('slow');
}
else {
$("#subscrlabel").children(".err").fadeOut('slow');
//check on dynamic regex
if (usubscr == "subscribe") {
if(!checkValidCNRAddress(uemail)) {
$("#emailabel").children(".err").fadeIn('slow');
}
else if(checkValidCNRAddress(uemail)) {
$("#emailabel").children(".err").fadeOut('slow');
mailsendstatus = true;
}
} //else check at least for a valid email address
else if (usubscr == "unsubscribe"){
if(!checkValidEmailAddress(uemail)) {
$("#emailabel").children(".err").fadeIn('slow');
}
else if(checkValidEmailAddress(uemail)) {
$("#emailabel").children(".err").fadeOut('slow');
mailsendstatus = true;
}
}
}
if (mailsendstatus = true;) {
...
//make your AJAX request here
...
}
}