Regular Expression, Parsing Img Src Content And Replacing It With Another Links

I need to make next feature on my site: user writing an article and attach image in it, images are often stored not on localhost. I need to download this images to localhost and re

Solution 1:

A Php DOMDocument Example how to manipulate HTML image tags.

$dom=new DOMDocument();
$dom->loadHTML($html_src);
$imgs = $dom->getElementsByTagName('img');
foreach($imgsas$img){

    $img_src = $img->getAttribute('src'); // will give you the src String//do something here$img->setAttribute('src',$new_src); // change your src= value

}

You can manipulate everything with setAttribute when the Attribute exist.

If you want be sure, that src is set, then you can use hasAttribute

Solution 2:

I think you need preg_replace_callback but keep in mind that downloadImage may fail. so handle the failure gracefully (a fallback image or a retry queue)