PHP - 在字符串中的任何<img>标记周围的'wrap'<a>标记

Question

I need to take any img tag within a string, and add an a tag around it.

E.g.

$content= "Click for more info <img src="\http://www.domain.com/1.jpg\"" />";

Would need to be replaced with

"Click for more info <a href=\"http://www.domain.com/1.jpg\"<img src="\http://www.domain.com/1.jpg\"" /></a>";

My current script is:

$content = $row_rsGetStudy['content'];

$doc = new DOMDocument();
$doc->loadHTML($content);
$imageTags = $doc->getElementsByTagName('img');

foreach($imageTags as $tag) {
    $content = preg_replace("/<img[^>]+\>/i", "<a href=\"$tag\"><img src=\"$tag\" /></a>", $content); 
}

echo $content

This gives me the following error: Catchable fatal error: Object of class DOMElement could not be converted to string

Any ideas on where I'm going wrong?

Answer 1

With DOM methods, something like this (untested, debug yourself ;P )

foreach($imageTags as $tag) {
    $a = $tag->ownerDocument->createElement('a');
    $added_a = $tag->parentNode->insertBefore($a,$tag);
    $added_a->setAttribute('href',$tag->getAttribute('src'));
    $added_a->appendChild($tag);
}