我正在使用wordpress网站，在其中我有一个页面，它使用会话来存储验证码并在另一个页面（联系页面）中检索它，但会话变量只提供以前的验证码值，我无法'解决这里的问题。请有人帮我解决这个问题
联系页面
<?php
session_start();
?>
<?php
/**
* @package WordPress
* @subpackage naam
* Template Name: Contactpage*/
get_header(); ?>
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script type="text/javascript">
function checkEmail(email)
{
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email))
{
return false;
}
else
return true;
}
function checkCaptcha(captcha)
{
var original_captcha = "<?php echo $_SESSION['6_letters_code'] ?>";
alert("original:"+original_captcha+"\n"+"user:"+captcha);
var user_entered_captcha = captcha;
if (original_captcha.localeCompare(user_entered_captcha) == 0)
{
return true;
}
else
return false;
}
$(document).ready(function() {
$("#submit").click(function(){
var fname = $('#fname').val();
var email = $('#email').val();
var phone = $('#phone').val();
var mesg = $('#mesg').val();
var captcha = $('#6_letters_code').val();
var admineml= 'sarath.sarigama@gmail.com';//'<?php echo get_option( 'admin_email' ); ?>';
var err = 0;
$('#fnamemsg').html('');
$('#emailmsg').html('');
$('#mesgmsg').html('');
$('#phonemsg').html('');
$('#captchamsg').html('');
if(fname.search(/\S/) == -1)
{
err = 1;
$('#fnamemsg').html('<font style="color:red">Error ! Enter your name</style>');
}
if(checkEmail(email) == false)
{
err = 1;
$('#emailmsg').html('<font style="color:red">Error ! Enter email address</style>');
}
if(checkCaptcha(captcha) == false)
{
err = 1;
$('#captchamsg').html('<font style="color:red">Error ! Enter the captcha</style>');
}
if(mesg.search(/\S/) == -1)
{
err = 1;
$('#mesgmsg').html('<font style="color:red">Error ! Enter message</style>');
}
if(phone.search(/\S/) == -1)
{
err = 1;
$('#phonemsg').html('<font style="color:red">Error ! Enter phone number</style>');
}
if(err == 1)
{
return false;
}
else
jQuery.ajax({
type: "POST",
url: "<?php bloginfo('stylesheet_directory'); ?>/formsub.php",
data: {fname: fname, email: email, phone: phone, admineml: admineml, mesg: mesg},
success: function(data)
{
//alert(data);
if(data=='true')
{
document.getElementById('scs_msg').innerHTML="Submit Successfully";
document.getElementById('scs_msg').style.display="block";
document.getElementById('main').style.display="none";
}
else
{
document.getElementById('scs_msg').innerHTML="Error Please Try again";
}
}
});
//return true;
});
});
</script>
<section id="container">
<section class="greyarea">
<section class="greyareacontainer">
<section style="clear:both; height:20px;"></section>
<h1>Contact us</h1>
<section class="contactBlock">
<article class="contactBlock_left">
<?php
$args = array( 'posts_per_page' => 1, 'offset'=> 0, 'post_type' => 'address' );
$myposts = get_posts( $args );
foreach ( $myposts as $post ) : setup_postdata( $post );
?>
<section class="triblock">
<h1><figure><img src="<?php bloginfo('stylesheet_directory'); ?>/images/icon1.png" alt="" ></figure>Address</h1>
<p><?php print_custom_field('address_details'); ?></p>
</section>
<section class="triblock">
<h1><figure><img src="<?php bloginfo('stylesheet_directory'); ?>/images/mobile.png" alt="" ></figure>
Phone Number</h1>
<p><?php print_custom_field('ph_no'); ?></p>
</section>
<section class="triblock">
<h1><figure><img src="<?php bloginfo('stylesheet_directory'); ?>/images/mail.png" alt="" ></figure>
Email</h1>
<p><a href=""><?php print_custom_field('email_add'); ?></a></p>
</section>
<?php endforeach; ?>
</article>
<article class="contactBlock_middle">
<figure><?php dynamic_sidebar('g_map'); ?></figure>
</article>
<article class="contactBlock_right">
<div style="display:none;" id="scs_msg"></div>
<div id="main">
<div class="errorBlock">
<div id="fnamemsg"></div>
<div id="emailmsg"></div>
<div id="phonemsg"></div>
<div id="mesgmsg"></div>
<div id="captchamsg"></div>
</div>
<form action="" method="post" novalidate="" id="commentform" class="clform">
<label>Your Name</label>
<input type="text" placeholder="Enter your name" id="fname">
<label>Enter email address</label>
<input type="email" placeholder="Email Address" id="email">
<label>Enter phone number</label>
<input type="text" placeholder="Phone Number" id="phone">
<label>Message</label>
<textarea cols="" rows="" placeholder="Enter your message" id="mesg"></textarea>
<img src="http://callagylaw.com/wp-content/themes/callargy/captcha_code_file.php?rand=<?php echo rand(); ?>" id='captchaimg' >
<label for='message'>Enter the code above here :</label>
<input id="6_letters_code" name="6_letters_code" type="text">
<small>Can't read the image? click <a href='javascript: refreshCaptcha();'>here</a> to refresh</small>
<input type="button" value="Submit" id="submit">
</form>
<script language='JavaScript' type='text/javascript'>
function refreshCaptcha()
{
var img = document.images['captchaimg'];
img.src = img.src.substring(0,img.src.lastIndexOf("?"))+"?rand="+Math.random()*1000;
}
</script>
</div>
</article>
</section>
</section>
</section>
</section>
<?php get_footer(); ?>
验证码生成代码
<?php
/*
*
* this code is based on captcha code by Simon Jarvis
* http://www.white-hat-web-design.co.uk/articles/php-captcha.php
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details:
* http://www.gnu.org/licenses/gpl.html
*/
session_start();
//Settings: You can customize the captcha here
$image_width = 120;
$image_height = 40;
$characters_on_image = 6;
$font = './monofont.ttf';
//The characters that can be used in the CAPTCHA code.
//avoid confusing characters (l 1 and i for example)
$possible_letters = '23456789bcdfghjkmnpqrstvwxyz';
$random_dots = 0;
$random_lines = 20;
$captcha_text_color="0x142864";
$captcha_noice_color = "0x142864";
$code = '';
$i = 0;
while ($i < $characters_on_image) {
$code .= substr($possible_letters, mt_rand(0, strlen($possible_letters)-1), 1);
$i++;
}
$font_size = $image_height * 0.75;
$image = @imagecreate($image_width, $image_height);
/* setting the background, text and noise colours here */
$background_color = imagecolorallocate($image, 255, 255, 255);
$arr_text_color = hexrgb($captcha_text_color);
$text_color = imagecolorallocate($image, $arr_text_color['red'],
$arr_text_color['green'], $arr_text_color['blue']);
$arr_noice_color = hexrgb($captcha_noice_color);
$image_noise_color = imagecolorallocate($image, $arr_noice_color['red'],
$arr_noice_color['green'], $arr_noice_color['blue']);
/* generating the dots randomly in background */
for( $i=0; $i<$random_dots; $i++ ) {
imagefilledellipse($image, mt_rand(0,$image_width),
mt_rand(0,$image_height), 2, 3, $image_noise_color);
}
/* generating lines randomly in background of image */
for( $i=0; $i<$random_lines; $i++ ) {
imageline($image, mt_rand(0,$image_width), mt_rand(0,$image_height),
mt_rand(0,$image_width), mt_rand(0,$image_height), $image_noise_color);
}
/* create a text box and add 6 letters code in it */
$textbox = imagettfbbox($font_size, 0, $font, $code);
$x = ($image_width - $textbox[4])/2;
$y = ($image_height - $textbox[5])/2;
imagettftext($image, $font_size, 0, $x, $y, $text_color, $font , $code);
/* Show captcha image in the page html page */
header('Content-Type: image/jpeg');// defining the image type to be shown in browser widow
imagejpeg($image);//showing the image
imagedestroy($image);//destroying the image instance
$_SESSION['6_letters_code'] = $code;
function hexrgb ($hexstr)
{
$int = hexdec($hexstr);
return array("red" => 0xFF & ($int >> 0x10),
"green" => 0xFF & ($int >> 0x8),
"blue" => 0xFF & $int);
}
?>
答案 0 :(得分：0)
如果我不是小姐明白你的问题你首先需要以下列形式显示验证码：
<img src="showCaptcha.php" alt="captcha" />
<br/>
<label >Verify You are not a BOT</label>
<input type="text" name="captcha" placeholder="Enter the text shown above" required/>
然后当用户提交表单时，您可以使用get captcha值。
简单来说，您首先需要运行验证码脚本，然后您可以检索存储在会话中的验证码值。
希望如果没有请帮助我发表评论，我将很乐意为您提供帮助