PHP regex to parse wordpress shortcode attribute

Question

I am trying to regex all lightbox wordpress shortcodes and receive their 'link' attribute.

Example:

[lightbox link="http://www.test.com/photo1.jpg" width="150" align="none" title="photo 1" frame="true" icon="image"]
[lightbox link="http://www.test.com/photo2.jpg" width="150" align="none" title="photo 2" frame="true" icon="image"]
...
[lightbox link="http://www.test.com/photo5.jpg" width="150" align="none" title="photo 5" frame="true" icon="image"]

There can be any number of these shortcodes but I need to get all their link attributes:

http://www.test.com/photo1.jpg

My pattern I am working with:

$pattern = '/\[(\[?)(lightbox)(?![\w-])([^\]\/]*(?:\/(?!\])[^\]\/]*)*?)(?:(\/)\]|\](?:([^\[]*+(?:\[(?!\/\2\])[^\[]*+)*+)\[\/\2\])?)(\]?)/';

What is your question?

Tchoupi
– Tchoupi

2013-11-15 03:39:16 +00:00
Commented Nov 15, 2013 at 3:39 — Tchoupi
– Tchoupi, Commented Nov 15, 2013 at 3:39

Machavity · Accepted Answer · 2013-11-15 03:43:21Z

1

I think you're overthinking it a bit

preg_match_all('/\[lightbox link="(.*?)".*\]/i', $str, $matches);

answered Nov 15, 2013 at 3:43

Machavity♦

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