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phpregexwordpress
Drew Bartlett
Drew Bartlett

Reputation: 1891

PHP Regex to get text inside WP Caption

I have captions in WP that I need to grab the text out of.

Initially, they look like this:

[caption id="attachment_16689" align="aligncenter" width="754"]<a href="http://www.site.com/" target="_blank"><img class=" wp-image-16689 " title="Title" src="http://site.com/wp-content/uploads/2012/11/image.jpg" alt="" width="754" height="960" /></a> I want to get this text out of here.[/caption]

I'm able to strip out the image and a tag with: 

$c = preg_replace(array("/<img[^>]+\>/i", "/<a[^>]*>(.*)<\/a>/iU"), "", $caption);

Which leaves: 

[caption id="attachment_16689" align="aligncenter" width="754"] I want to get this text out of here.[/caption]

I want to be able to get the text out of the caption leaving "I want to get this text out of here.". I have tried a number of different expressions, none of which I can get to work. After the above code I have: 

preg_replace('/(\[caption.*])(.*)(\[/caption\])/', '$1$3', $c);

What am I doing wrong?

Upvotes: 1

Views: 1484

Answers (2)

jmgardn2
jmgardn2

Reputation: 961

See below, you actually want to replace with the 2nd subject. Also, you had some mis-escaped backslashes.

$caption = '[caption id="attachment_16689" align="aligncenter" width="754"]<a href="http://www.site.com/" target="_blank"><img class=" wp-image-16689 " title="Title" src="http://site.com/wp-content/uploads/2012/11/image.jpg" alt="" width="754" height="960" /></a> I want to get this text out of here.[/caption]';

$c = preg_replace(array("/<img[^>]+\>/i", "/<a[^>]*>(.*)<\/a>/iU"), "", $caption);
$c = preg_replace('%(\\[caption.*])(.*)(\\[/caption\\])%', '$2', $c);

You could also skinny it down a little more by adding the caption replace into the array. Just make sure the second argument is an array as well array('','','$2')

$caption = '[caption id="attachment_16689" align="aligncenter" width="754"]<a href="http://www.site.com/" target="_blank"><img class=" wp-image-16689 " title="Title" src="http://site.com/wp-content/uploads/2012/11/image.jpg" alt="" width="754" height="960" /></a> I want to get this text out of here.[/caption]';

$c = preg_replace(array("/<img[^>]+\>/i", "/<a[^>]*>(.*)<\/a>/iU",'%(\\[caption.*])(.*)(\\[/caption\\])%'), array('','','$2'), $caption);

Upvotes: 3

Samuel Cook
Samuel Cook

Reputation: 16828

$string = '[caption id="attachment_16689" align="aligncenter" width="754"] I want to get this text out of here.[/caption]';

preg_match("/\[caption.*\](.*?)\[\/caption\]/",$string,$matches);
$caption_text = $matches[1];
echo $caption_text;

Upvotes: 1

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