PHP code to traverse through a HTML file to find all the images in there?

Question

I wanted a php script to fetch all the images in HTML code and list it. Can anyone help me do this, or some Idea as to how I should proceed ? I am new to this, so any help would be appreciated.

Given the answers and the fact one has even been given 3 up votes, it would be good to accept the answer you like most so people get the appropriate recognition. — CogitoErgoSum, Sep 03 '10 at 15:06

score 8 · Accepted Answer · answered Sep 02 '10 at 19:13

you can use DOMDocument, or simplehtmldom. here is a DOMDocument example:

$dom = new DOMDocument();
$dom->loadHtml($yourHtmlAsAString);
foreach ($dom->getElementsByTagName('img') as $img) {
    echo $img->getAttribute('src').'<br>'; // or whatever you need
}

score 4 · Answer 2 · edited May 23 '17 at 12:14

4

Run the HTML code through one of the many HTML parser libraries and then query for the src attribute value on all the img elements.

edited May 23 '17 at 12:14

Community

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answered Sep 02 '10 at 19:13

hao

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score 3 · Answer 3 · answered Sep 02 '10 at 19:14

Tried looking at DOMDocument in PHP? http://php.net/manual/en/domdocument.getelementsbytagname.php

Good example from that page:

$dom = new DomDocument();
$dom->prevservWhiteSpace = false;

$dom->loadHTML($htmlString);

$imageList = $dom->getElementsByTagName('img');
$imageCnt  = $imageList->length;

for ($idx = 0; $idx < $imageCnt; $idx++) {
    print $imageList->item($idx)->nodeValue . "\n";
}

Should give you the basics you need.

*Disclaimer, example is slightly modified from the comment I yanked it from but this is pretty straight forward stuff.

score 2 · Answer 4 · answered Sep 02 '10 at 19:29

2

If you want to load it from an actual php/html file...

$dom = new DomDocument();

if (!@$dom->load('img.php')) {
    echo 'url does not exist';
    return;
}

$imgs = $dom->getElementsByTagName('img');

for ($buffer = ''; $i = 0, $len = $imgs->length; $i < $len; $i++)
{
  $buffer .= 'image ' . $i . ' is: ' . $imgs->item($i)->getAttribute('src') . '<br/>';
}

echo $buffer;

answered Sep 02 '10 at 19:29

Gary Green

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Thanks a lot eveyone for the code, it works just fine. Nw I knw DomDocument can do magic :) – Aditya Sep 02 '10 at 19:52

score 1 · Answer 5 · answered Sep 02 '10 at 19:13

1

I would suggest looking into the DOM. It should provide the functionality you are looking for.

answered Sep 02 '10 at 19:13

Jim

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score 1 · Answer 6 · answered Sep 02 '10 at 19:24

I think one of the simplest ways you could do this would be through a regular expression. Load the HTML via the DOMDocument object as mentioned but create a expression - apparently PHP has 3 different methods to do this. I've also written a short post on regular expressions which may help you get a foothold on the subject. They're extremely useful in situations such as this.

PHP code to traverse through a HTML file to find all the images in there?

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