[RESOLVED] Extract link

[snapbackz]

[url=http://somesite.com/files/143699_gpujq/some_file.php *rightbracket* some_file.php[/url]

rightbracket = ] Forum kept making it a link on me 🙂

What would be the easiest way to detect that kind of link and extract the link by itself? I want to be able to end up with just:

http://somesite.com/files/143699_gpujq/some_file.php

Thanks

[bpat1434]

<?php
$str = '[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]';

$pattern = '~\[url=(.*?)\].*?\[/url\]~i';
if(preg_match($pattern, $string, $matches) > 0)
{
    echo $matches[1];
}
else
    echo 'No match found!';
?>

I think that should work.

[Quadodo]

You could do this:

<?php
$text = 'Blah blah blah [url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]';
preg_match('/\[url=(.*?)\](.*?)\[\/url\]/i', $text, $matches);

$pattern[] = '/\[url=/i';
$replace[] = '';

$pattern[] = '/\](.*?)\[\/url\]/i';
$replace[] = '';

foreach ($matches as $key => $value) {
$matches[$key] = preg_replace($pattern, $replace, $value);
}

var_dump($matches);
?>

That should do what you want.. it's not perfect but it returns what you want (maybe need to look to see if it matched it twice or something though)

[bpat1434]

Why do that when you can just do the preg_match (or preg_match_all) and be done with it? What's the point of replacing anything? matches[0] will be the entire string found that matches the regex (or an array of entire strings found matching the regex) and matches[1] will be the first selected element (or an array of the first selected element) in the regex and matches[2] will be the second selected element (or an array of the second selected element) of the regex. For example:

$text = 'Blah blah blah [url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]
[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]
[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]
[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]
[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]';

preg_match_all('~\[url=(.*)\].*\[/url\]~iU', $text, $matches);
var_dump($matches);
array_shift($matches);
var_dump($matches);

That will give:

array(2) {
  [0]=>
  array(5) {
    [0]=>
    string(77) "[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]"
    [1]=>
    string(77) "[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]"
    [2]=>
    string(77) "[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]"
    [3]=>
    string(77) "[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]"
    [4]=>
    string(77) "[url=http://somesite.com/files/143699_gpujq/some_file.php]some_file.php[/url]"
  }
  [1]=>
  array(5) {
    [0]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
    [1]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
    [2]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
    [3]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
    [4]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
  }
}
array(1) {
  [0]=>
  array(5) {
    [0]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
    [1]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
    [2]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
    [3]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
    [4]=>
    string(52) "http://somesite.com/files/143699_gpujq/some_file.php"
  }
}

What more could you need?

[snapbackz]

Brett, thank you! Exactly what i was looking for. Learned a lot too. 🙂