CODEWITHSUNDEEP
phpwordpress
Kashif Waheed
Kashif Waheed

Reputation: 597

need to fetch the url/src of image

I need to retrieve the src of an img in the "the_content" and also need to print it in the last anchor as you can see in the code below. I tried almost everything from my knowledge and also from the internet but no luck. plz help.
I removed everything that I tried and put the clean code so that you guys could easily understand it. 

<?php query_posts('cat=7');?>
    <?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

    <div class="impresna  zoom-img" id="zoom-img">
        <?php the_content();  // it contain images>
        <span class="main"><span class="emboss">MARCA - SP</span><?php the_date(); ?>

            <a class="lb_gallery" href="need to print url of image here">+ZOOM</a></span>
            <br clear="all" />
            </div>
        <?php endwhile; ?>
<?php endif; ?>

Upvotes: 0

Views: 255

Answers (2)

Ahmad Suhendri
Ahmad Suhendri

Reputation: 604

Add this to function.php

function get_first_image_url ($post_ID) {
 global $wpdb;
 $default_image = "http://example.com/image_default.jpg";   //Defines a default image
 $post = get_post($post_ID);
 $first_img = '';
 ob_start();
 ob_end_clean();
 $output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
 $first_img = $matches [1] [0];

 if(empty($first_img))
 { 
    $first_img = $default_image;
 }
 return $first_img; }

To retrieve the src of an img :

<a class="lb_gallery" href="<?php echo get_first_image_url ($post->ID); ?>">

Upvotes: 2

Dark Falcon
Dark Falcon

Reputation: 44201

You will need to parse the string returned from the_content() to extract the img tag. Here are a number of ways to parse HTML in PHP. For example, with DOM it will be something like this:

<?php
$content = get_the_content();
echo $content;
$last_src = '';

$dom = new DOMDocument;
if($dom->loadHTML($content))
{
    $imgs = $dom->getElementsByTagName('img');
    if($imgs->length > 0)
    {
        $last_img = $imgs->item($imgs->length - 1);
        if($last_img)
            $last_src = $last_img->getAttribute('src');
    }
}
?>
<a class="lb_gallery" href="<?php echo htmlentities($last_src); ?>">

Upvotes: 2

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