How to grab the first link in a post WordPress
- SOLVED
[[LINK href="http://www.wprecipes.com/how-to-get-the-first-image-from-the-post-and-display-it"]]I am intrigued by the code here:[[/LINK]]
function catch_that_image() {
global $post, $posts;
$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)){ //Defines a default image
$first_img = "/images/default.jpg";
}
return $first_img;
}
How would I modify the regex to pull out the first link in a post? I want to pull out the first link and establish that in a special place in the template.
Answers (4)
Maor Barazany answers:
Try this one:
<?php
function catch_that_link() {
global $post, $posts;
$first_link = '';
ob_start();
ob_end_clean();
$output = preg_match_all('/<a[\s]+[^>]*?href[\s]?=[\s\"\']+(.*?)[\"\']+.*?>([^<]+|.*?)?<\/a>/is', $post->post_content, $matches);
$first_link = $matches [1] [0];
if(empty($first_link)){ //Defines a default link
$first_link = "<a href='http://www.some_default_link.com'>link text</a>";
}
return $first_link;
}
?>
Then to print this link you use the function:
<?php echo $first_link = catch_that_link(); ?>
Darrin Boutote answers:
function catch_that_link() {
global $post, $posts;
ob_start();
ob_end_clean();
$output = preg_match_all('/<a[^>]*>(.*?)<\/a>/i', $post->post_content, $matches);
$first_link = $matches[0][0];
return $first_link;
}
echo catch_that_link();
Ashfame answers:
I would suggest using HTML DOM parser - http://sourceforge.net/projects/simplehtmldom/
Its very easy and can do all the heavy lifting for you and much more things.
Here is how to work with it :
// Load the HTML DOM Parser Library
require_once('simple_html_dom.php');
// Create DOM from URL or file
$html = file_get_html('http://www.google.com/');
// Find all images
foreach($html->find('img') as $element)
echo $element->src . '<br />';
// Find all links
foreach($html->find('a') as $element)
echo $element->href . '<br />';
enodekciw answers:
Ok, the most simple solution, imo.
Paste this code into your functions.php:
function get_first_link() {
global $post, $posts;
preg_match_all('/href\s*=\s*[\"\']([^\"\']+)/', $post->post_content, $links);
return $links[1][0];
}
That preg match should extract only URL (not the whole <a href="www.example.com">example</a>, but only www.example.com).
So, how to use it?
<?php $first_link = get_first_link(); ?>
<a href="<?php echo $first_link; ?>" title="First link in <?php the_title(); ?> post">This is first link in <?php the_title(); ?></a>
So, basically you get the URL of the first link in post and then you can use it as you wish ;) just echo it out using <?php echo $first_link; ?>