php regex for finding image in a Text

Question

i have no idea about php regex i wish to extract all image tags <img src="www.google.com/exampleimag.jpg"> form my html how can i do this using preg_match_all

thanks SO community for u'r precious time

well my scenario is like this there is not whole html dom but just a variable with img tag $text="this is a new text <img="sfdsfdimg/pfdg.fgh" > there is another iamh <img src="sfdsfdfsd.png"> hjkdhfsdfsfsdfsd kjdshfsd dummy text

You just want all images, regardless what their `src` value is? — Sampson, May 01 '12 at 06:12
Don't use regex to parse HTML; read up on DomDocument - http://www.php.net/domdocument — Ja͢ck, May 01 '12 at 06:12
Use a PHP HTML parser instead of a regex. HTML and regular expressions don't mix well. — Surreal Dreams, May 01 '12 at 06:12
@JonathanSampson do i need domdocument too when my scenario is as above — spiderman, May 01 '12 at 06:20
@spiderman I just tested your text, and it found the image just fine. — Sampson, May 01 '12 at 06:21
@JonathanSampson can please tell how can i get whole tag using this approach — spiderman, May 02 '12 at 04:26
@spiderman Please see the latest addition to my answer below. — Sampson, May 02 '12 at 04:43

Sampson · Accepted Answer · 2012-05-02T04:43:00.340

Don't use regular expressions to parse HTML. Instead, use something like the DOMDocument that exists for this very reason:

$html = 'Sample text. Image: <img src="foo.jpg" />. <img src="bar.png" />';
$doc = new DOMDocument();
$doc->loadHTML( $html );

$images = $doc->getElementsByTagName("img");

for ( $i = 0; $i < $images->length; $i++ ) {
  // Outputs: foo.jpg bar.png
  echo $images->item( $i )->attributes->getNamedItem( 'src' )->nodeValue;
}

You could also get the image HTML itself if you like:

// <img src="foo.jpg" />
echo $doc->saveHTML ( $images->item(0) );

score 1 · Answer 2 · edited May 23 '17 at 12:29

1

You can't parse HTML with regex. You're much better off using the DOM classes. They make it trivially easy to extract the images from a valid HTML tree.

$doc = new DOMDocument ();
$doc -> loadHTML ($html);
$images = $doc -> getElementsByTagName ('img'); // This will generate a collection of DOMElement objects that contain the image tags

edited May 23 '17 at 12:29

Community

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answered May 01 '12 at 06:13

GordonM

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php regex for finding image in a Text

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