Extracting specific links using PHP preg_match_all

Question

I have an html file containing

 <img width="10" height="12" scr="https://www.site.com/yughggcfgh">
<img width="11" height="15" scr="https://www.site.com/yughggcfghcvbcvb">
<img width="10" height="12" scr="https://www.site.com/a.jpg">
<img width="10" height="12" scr="https://www.site.com/b.gif">

I want to extract the paths of images which doesn't have an extention in an array,
The output must be as follows

ari[1]= <img width="10" height="12" scr="https://www.site.com/yughggcfgh">
ari[2]= <img width="11" height="15" scr="https://www.site.com/yughggcfghcvbcvb">

possible duplicate of How to parse and process HTML with PHP? — outis
– outis, Commented Apr 4, 2012 at 11:58

Lawrence Cherone · Accepted Answer · 2012-04-04 12:11:28Z

2

You really should use domDocument or some html parser not regex heres an example:

<?php 
$somesource='<img width="10" height="12" src="https://www.site.com/yughggcfgh">
<img width="11" height="15" src="https://www.site.com/yughggcfghcvbcvb">
<img width="10" height="12" src="https://www.site.com/a.jpg">
<img width="10" height="12" src="https://www.site.com/b.gif">';

$xml = new DOMDocument();
@$xml->loadHTML($somesource);
foreach($xml->getElementsByTagName('img') as $img) {
    if(substr($img->getAttribute('src'),-4,1)!='.'){
        $image[] = $img->getAttribute('src');
    }
}

print_r($image);

Array
(
    [0] => https://www.site.com/yughggcfgh
    [1] => https://www.site.com/yughggcfghcvbcvb
)

?>

edited Apr 4, 2012 at 12:11

answered Apr 4, 2012 at 12:05

Lawrence Cherone

46.7k7 gold badges66 silver badges107 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

knittl Over a year ago

Maybe be more restrictive as to what constitutes an image extension

Lawrence Cherone Over a year ago

I noted its an example, im not here to complete scripts for peeps but only give examples to build appon ;p

Alfred Francis Over a year ago

Thanks it works ! is domDocument will work on every PHP server ??

Lawrence Cherone Over a year ago

@Alfredfrancis Yes any server with PHP 5. Dont forget to scan through the documentation.

knittl Over a year ago

@LawrenceCherone: well… fair enough ;)

knittl · Accepted Answer · 2012-04-04 12:02:56Z

1

Regular expressions are probably not the right tool for the job, but here you go …

You should be able to achieve your goal with negative lookbehind assertions:

preg_match_all('/src=".+?(?<!\.jpg|\.jpeg|\.gif|\.png)"/', $html, $matches);

edited Apr 4, 2012 at 12:02

answered Apr 4, 2012 at 11:56

knittl

269k59 gold badges339 silver badges405 bronze badges

1 Comment

Alfred Francis Over a year ago

error : Warning: preg_match() [function.preg-match]: Delimiter must not be alphanumeric or backslash in C:\xampp\htdocs\curl\index.php on line 19

Collectives™ on Stack Overflow

Extracting specific links using PHP preg_match_all

2 Answers 2

5 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

5 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related