将参数从标签传递到灯箱

I'm using a lightbox plugin to display a page with dynamic content in a lightbox, I need to pass a parameter id from the < a > tag to the lightbox content.

This is the < a > tag

<a href="#?pid=<?php echo $image->pid;?>" class="lbp_singe-image">

And this is the lightbox content that will be displayed when I click on the link.

<div style="display:none">
    <div id="lbp_singe-image">
        <?php
            $pid = $_GET["pid"];  //I need to get the ID
            $pid = ereg_replace("[^0-9]", "", $pid);
            $shortcode_output = do_shortcode('[singlepic id="' . $pid . '" w="" h=""]');
            if ($shortcode_output=="[SinglePic not found]"){
                echo ("No picture here");  
            }else {
                echo do_shortcode('[singlepic id="' . $pid . '" w="" h=""]');
            }
        ?>
    </div>  
</div>

The lightbox is working correctly, My problem is that I want to fetch the value from the link.

so what can I do here?

Update

It is a gallery page, contains many anchors, each anchor has $image->pid; the shortcode supposed to run in separated page where the URL is full and php will be able to fetch the value with $_GET["pid"], but I need to run it in a lightbox instead and here where I can't use the url to get the ID.

The way you use the lightbox no request will be sent to the server, instead you display a content div that already is on the same page. That is why $_GET['pid'] is empty at that moment.

I see 2 possible solutions.

First, instead of $_GET['pid'] you use $image->pid.

Second, if you want to send a request to the server when the link is clicked, use the technique described in the docs chapter "Secondary Lightbox General Usage":

http://www.23systems.net/wordpress-plugins/lightbox-plus-for-wordpress/demos/

A secondary lightbox can be used to display internal and external web pages, video or interactive flash. Secondary lightboxes must be set up manually and can use either a rel=”lightbox[id]” attribute or a class=”lbpModal” attribute to associate the link/content with the a lightbox.

So something like this should work:

<a class="lbpModal" href="[urlToScriptThatGeneratesYourContent]">click</a>

Note: I never used this plugin, nor have I tested this, it is just what I read from the docs.