PHP验证码AJAX验证码、PHP、AJAX

2023-09-10 18:13:44 作者：风带走故事也带走你

大家好，我在我的页面上的联系人页面使用验证码。我想在PHP提交表单前检查的话。所以，我在阿贾克斯做到了。这里是我的code。

 ＆LT; DOCTYPE HTML PUBLIC -  // W3C // DTD XHTML 1.0过渡// ENHTTP：//www.w3/TR/xhtml1/DTD/xhtml1- transitional.dtd＆GT;
＆LT; HTML的xmlns =http://www.w3.org/1999/xhtml＆GT;
＆LT; HEAD＆GT;
＆LT; META HTTP-当量=Content-Type的CONTENT =text / html的;字符集= UTF-8/＆GT;
＆LT;冠军＆GT;再次验证码＆LT; /标题＆GT;
＆LT;脚本类型=文/ JavaScript的SRC =jQuery的-1.2.3.js＆GT;＆LT; / SCRIPT＆GT;
＆LT;脚本类型=文/ JavaScript的＆GT;
功能validateCaptcha（）
{

challengeField = $（＃输入recaptcha_challenge_field）VAL（）。
responseField = $（＃输入recaptcha_response_field）VAL（）。

警报（challengeField）;
警报（responseField）;
//返回false;
VAR HTML = $阿贾克斯（{
键入：POST，
网址：ajax.recaptcha.php
数据：recaptcha_challenge_field =+ challengeField +与＆amp; recaptcha_response_field =+ responseField，
异步：假的
}）responseText的;

如果（HTML ==成功）
{
   // $（＃captchaStatus）HTML（成功提交表单。）。
   //返回false;
    //取消注释在应用程序中以下行
    // load_ajax（）;
    警报（验证码成功。）;
    返回true;
}
其他
{
    $（＃captchaStatus）HTML（图片验证失败）;
    Recaptcha.reload（）;
    返回false;
}
}
＆LT; / SCRIPT＆GT;

＆LT; / SCRIPT＆GT;
＆LT; /头＆GT;

＆LT;身体GT;
＆LT; DIV的风格=HEIGHT：300px的;宽度：350像素;保证金：汽车;背景：＃969;填充：20像素;＆GT;
＆LT;形式的行动=JavaScript的：无效（NULL）; NAME =frmSubmit方法=邮报的onsubmit =返回validateCaptcha（）;＆GT;
＆LT;标签＆gt;名称和LT; /标签＆gt;＆LT; BR /＆GT;
＆LT;输入类型=文本名称=改为txtNameID =NameTextBox/＆GT;
＆LT; BR /＆GT;
＆LT;标签＆gt; E邮＆LT; /标签＆gt;＆LT; BR /＆GT;
＆LT;输入类型=文本名称=txtEmailID =EmailTextBox/＆GT;
＆LT; BR /＆GT;
＆LT; BR /＆GT;
＆LT; PHP

 require_once（'验证码/ recaptchalib.php'）;

 //从https://www.google.com/recaptcha/admin/create的关键

 //本地主机

  $公钥=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
  $ privatekey =xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;



  ＃从验证码的响应
  $ RESP = NULL;
  ＃错误$ C $的验证码，C如有
  $错误= NULL;

  ＃是有验证码的反应？
   如果（$ _ POST [recaptcha_response_field]）{
    $ RESP = recaptcha_check_answer（$ privatekey，
                                    $ _ SERVER [REMOTE_ADDR]，
                                    $ _ POST [recaptcha_challenge_field]，
                                    $ _ POST [recaptcha_response_field]）;

    如果（$ resp-＆GT; is_valid）{
            回声你猜对了！
    } 其他 {
            ＃设置错误code，这样我们就可以显示它
            $错误= $ resp-＆GT;错误;
    }
    }
    回声recaptcha_get_html（$公钥，$错误）;
     ？＆GT;
     ＆LT; BR /＆GT;
    ＆LT;输入name="BtnSubmit"type="submit"onclick="MM_validateForm('NameTextBox','','R','EmailTextBox','','R');return document.MM_returnValue值=发送/＆GT;

    ＆LT; /形式GT;
    ＆LT; / DIV＆GT;
     ＆LT;脚本类型=文/ JavaScript的＆GT;
            VAR RecaptchaOptions = {
                主题：红色
            };
        ＆LT; / SCRIPT＆GT;
       ＆LT; /身体GT;
       ＆LT; / HTML＆GT;

我得到的错误是提起chlenge（challengeField = $（＃输入recaptcha_challenge_field）VAL（）;）我得到不正确。它看起来像这样

03AHJ_Vut2oHufxF2RvOtWbL7PDrlbU0bj3OgVpxaRg0Ae6-_xjqcIxRJTqD-bnUdTwyeLepickvVC7XLe5kqoWLu1sYdx7ZlmVkEP5TrHA9jGH75kW0Wua6faimq4aRZ5RaOOI0KOoqD0gVOGfeRQ1fw5c5lw-l5WXQ

解决方案

绑定在尝试在你的PHP网站上使用此验证码为整合

只需使用 Zend_Service_ReCaptcha 。你会融入这项服务只需用几行：

  //创建实例
$验证码=新Zend_Service_ReCaptcha（$ PUBKEY，$的privKey）;

//显示输出
回声$ recaptcha-＆GT; getHTML（）;

//处理输入
$结果= $ recaptcha-＆GT;验证（
    $ _ POST ['recaptcha_challenge_field']，
    $ _ POST ['recaptcha_response_field']
）;

//最后验证验证码
如果（$ result-＆GT;的isValid（））{
    //凉！
}

Hi all I am using reCaptcha in my page its a contact page. I want to check the words before submitting the form in PHP. So i done it in Ajax. here is my code.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Re captcha</title>
<script type="text/javascript" src="jquery-1.2.3.js"></script>
<script type="text/javascript">
function validateCaptcha()
{

challengeField =  $("input#recaptcha_challenge_field").val();
responseField = $("input#recaptcha_response_field").val();

alert(challengeField);
alert(responseField);
//return false;
var html = $.ajax({
type: "POST",
url: "ajax.recaptcha.php",
data: "recaptcha_challenge_field=" + challengeField + "&recaptcha_response_field=" + responseField,
async: false
}).responseText;

if(html == "success")
{
   // $("#captchaStatus").html("Success. Submitting form.");
   // return false;
    // Uncomment the following line in your application
    //load_ajax();
    alert("Captcha success..");
    return true;
}
else
{
    $("#captchaStatus").html("Image verification failed);
    Recaptcha.reload();
    return false;
}
}
</script>

</script>
</head>

<body>
<div style="height:300px;width:350px;margin:auto;background:#969;padding:20px;>
<form action = "javascript:void(null);" name="frmSubmit" method="post" onsubmit="return validateCaptcha();">
<label>Name</label><br />
<input type="text" name="txtName" id="NameTextBox" />
<br />
<label>E Mail</label><br />
<input type="text" name="txtEmail" id="EmailTextBox" />
<br />
<br />
<?php

 require_once('captcha/recaptchalib.php');

 // Get a key from https://www.google.com/recaptcha/admin/create

 //Localhost

  $publickey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
  $privatekey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";



  # the response from reCAPTCHA
  $resp = null;
  # the error code from reCAPTCHA, if any
  $error = null;

  # was there a reCAPTCHA response?
   if ($_POST["recaptcha_response_field"]) {
    $resp = recaptcha_check_answer ($privatekey,
                                    $_SERVER["REMOTE_ADDR"],
                                    $_POST["recaptcha_challenge_field"],
                                    $_POST["recaptcha_response_field"]);

    if ($resp->is_valid) {
            echo "You got it!";
    } else {
            # set the error code so that we can display it
            $error = $resp->error;
    }
    }
    echo recaptcha_get_html($publickey, $error);
     ?>
     <br />
    <input   name="BtnSubmit"type="submit"onclick="MM_validateForm('NameTextBox','','R','EmailTextBox','','R');return document.MM_returnValue" value="Send" />

    </form>
    </div>
     <script type="text/javascript">
            var RecaptchaOptions = {
                theme : 'Red'
            };
        </script>
       </body>
       </html>

The error I am getting is the chlenge filed(challengeField = $("input#recaptcha_challenge_field").val();) i am getting is incorrect. It looking like this

03AHJ_Vut2oHufxF2RvOtWbL7PDrlbU0bj3OgVpxaRg0Ae6-_xjqcIxRJTqD-bnUdTwyeLepickvVC7XLe5kqoWLu1sYdx7ZlmVkEP5TrHA9jGH75kW0Wua6faimq4aRZ5RaOOI0KOoqD0gVOGfeRQ1fw5c5lw-l5WXQ

解决方案

Bound over try to use this for recaptcha integration on your PHP site

Just use Zend_Service_ReCaptcha. You'll integrate this service just with few lines:

//Creating instance
$recaptcha = new Zend_Service_ReCaptcha($pubKey, $privKey);

//Display output
echo $recaptcha->getHTML();

//Handling input
$result = $recaptcha->verify(
    $_POST['recaptcha_challenge_field'],
    $_POST['recaptcha_response_field']
);

//And finally validate captcha
if ($result->isValid()) {
    //Cool!
}

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