【发布时间】：2014-07-26 15:15:12
【问题描述】：
我有一个显然简单的邮件列表订阅表单问题。
HTML5 表单包含 3 个字段：
-
文本输入 用于电子邮件地址：
<input type="email" name="email" -
单选按钮 控件有 2 个选项：
-
<input type="radio" value="subscribe" name="radio" <input type="radio" value="unsubscribe" name="radio"
-
-
文本输入用于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>
我们有一个允许请求订阅的域列表，包含在外部文件 .dat 中，PHP 中的某行动态创建正则表达式来检查电子邮件地址（仅在订阅的情况下，否则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');
}
}
}
然后它检查验证码是否正常（它将数据发送到 PHP 页面 captcha_check），然后提交到 sendmail.php（负责向我们的邮件服务器发送订阅/取消订阅请求）
// 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>
谁能给我解释一下： - 当脚本验证电子邮件地址时，给出的单选按钮的值始终是“订阅”，无论如何，即使我检查取消订阅 - 但是如果我输入一个包含在 domain.dat 中的域的电子邮件地址并检查取消订阅按钮，传递给 sendmail.php 的值是“取消订阅”（当我收到电子邮件时可以看到）
希望它足够清楚......提前感谢您的宝贵帮助！
【问题讨论】：
标签： php jquery ajax html email-validation