Add style attribute to images in divs with PHP - replace

Question

I have a newsletter that contains a few image inside a div called nieuwsbrief-tekst. I want to find those images and add inline css code to it. I can find the div with preg_match, and I can also find the image tag itself, but adding the style="" to the image tag hasn't worked so far.
There is also more then one nieuwsbief-tekst div, these divs are the different content blocks, so there are 3 or 4 of them. I tried the preg_replace, but that has no effect.
Any tips or suggestions how to handle this?
So the html would look like this, and I only want add the style attribute to the images inside the div.
HTM Code:
<div class="nieuwsbrief-tekst">lorum ipmsum</div>
<div class="nieuwsbrief-tekst"><img src="#"></div>
<div class="nieuwsbrief-tekst">lorum ipmsum</div>
<div class="nieuwsbrief-tekst"><img src="#"></div>
PHP Code:
if(preg_match_all('/<div class="nieuwsbrief-tekst">(.*?)<\/div>/is', $var, $matches)) {
foreach($matches[0] as $match) {
if(preg_match('/<img[^>]+>/is', $match, $match_img)) {
echo 'image found';
$pattern = '/<img[^>]+>/is';
$replacement = '<img style="float:left; margin:0 10px 10px 0;';
$test = preg_replace($pattern, $replacement, $match_img);
}
}
echo '<pre>';
print($test);
echo '</pre>';
}
Thanks :)

Answer 1

this should accomplish what you want
$pattern = "/<div class=\"tmp\">(\\w+)?<img ([^>]+)>(\\w+)?<\/div>/is";
$replacement = "<div class=\"tmp\">\\1 <img style=\"float:left; margin:0 10px 10px 0; \\2 /> \\3</div>";
$str = preg_replace($pattern, $replacement, $str);
echo $str;
Just change the tmp to fit your needs :)