extracting links in regex php

Question

I'm having issues extracting links in regex using preg_match_all().

I have the following string:

some random text <a href="http://localhost/example/wp-content/uploads/2014/07/Link1.pdf\">Link1</a><a href="http://localhost/example/wp-content/uploads/2014/07/Link2.pdf\">Link2</a>

I would like to extract the link to the files and the files format into two separate variables.

Any regex gurus here? I've been struggling with this all day.

Thanks!

Avinash Raj · Accepted Answer · 2014-09-28 12:32:16Z

1

(?<=href=")(.*?\.(.*?))\\

Try this.just grab the captures.see demo.

http://regex101.com/r/lS5tT3/80

$data = 'some random text <a href="http://localhost/example/wp-content/uploads/2014/07/Link1.pdf\">Link1</a><a href="http://localhost/example/wp-content/uploads/2014/07/Link2.pdf\">Link2</a>"';
$regex =  '/(?<=href=")(.*?\.(.*?))\\\\/';
preg_match_all($regex, $data, $matches);
print_r($matches);

Output:

Array
(
    [0] => Array
        (
            [0] => http://localhost/example/wp-content/uploads/2014/07/Link1.pdf\
            [1] => http://localhost/example/wp-content/uploads/2014/07/Link2.pdf\
        )

    [1] => Array
        (
            [0] => http://localhost/example/wp-content/uploads/2014/07/Link1.pdf
            [1] => http://localhost/example/wp-content/uploads/2014/07/Link2.pdf
        )

    [2] => Array
        (
            [0] => pdf
            [1] => pdf
        )

)

edited Sep 28, 2014 at 12:32

Avinash Raj

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answered Sep 28, 2014 at 11:38

vks

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8 Comments

nevos Over a year ago

That's exactly what I need. But for some odd reason using this expression in preg_match_all() doesn't work for me.. It returns NULL. Any ideas?

vks Over a year ago

@Nevos use groups(), cpature group1 for link ,group2 for format

nevos Over a year ago

What's groups()? I can't find reference to it

vks Over a year ago

@Nevos stackoverflow.com/questions/3459721/…

vks Over a year ago

@AvinashRaj thanx a lot.but why are the two links appearing two times

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