Re: [PHP] Extract links from strings

[Jim Lucas]

Jim Lucas wrote:
> Jônatas Zechim wrote:
>> Hi there, i've the following strings:
>>
>> $string1 = 'Lorem ipsum dolor http://site.com sit amet';
>> $string2 = 'Lorem ipsum dolor http://www.site.com/ sit amet';
>> $string3 = 'Lorem ipsum dolor http://www.site.net sit amet';
>>
>> How can I extract the URL from these strings?
>> They can be [http:// + url] or [www. + url].
>>
>> Zechim
>>
>>
> 
> Something like this should work for you.
> 
> <plaintext><?php
> 
> $urls[] = 'Lorem ipsum dolor http://site.com sit amet';
> $urls[] = 'Lorem ipsum dolor https://www.site.com/ sit amet';
> $urls[] = 'Lorem ipsum dolor www.site1.net sit amet';
> $urls[] = 'Lorem ipsum dolor www site2.net sit amet';
> 
> foreach ( $urls AS $url ) {
>       if ( preg_match('%((https?://|www\.)[^\s]+)%', $url, $m) ) {
>               print_r($m);
>       }
> }
> 
> ?>
> 

Actually, try this.  It seems to work a little better.

<plaintext><?php

$urls[] = 'Lorem ipsum dolor http://site.com sit amet';
$urls[] = 'Lorem ipsum dolor https://www.site.com/ or http://www.site2.com/';
$urls[] = 'Lorem ipsum dolor www.site1.net sit amet';
$urls[] = 'Lorem ipsum dolor www site2.net sit amet';

foreach ( $urls AS $url ) {
        if ( preg_match_all(    '%(https?://[^\s]+|www\.[^\s]+)%',
                                $url,
                                $m,
                                (PREG_SET_ORDER ^ PREG_OFFSET_CAPTURE)
        ) ) {
                print_r($m);
        }
}

?>


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