Remove P tag from images if aligncenter class is set

Question

I am trying to create a function that will filter the_content depending on image alignment. So far I have this...

function filter_ptags_on_images($content)
{
 $content = preg_replace('/<p>\\s*?(<a .*?><img.*?><\\/a>|<img.*?>)?\\s*<\\/p>/s', '$1', $content);
    return $content;
}

This is removing the P tag from images but I want to modify it so that it only does this is aligncenter is set on the image.

Does anybody have an example?

Answer 1

it should work like this.

function filter_ptags_on_images($content)
{
    $content = preg_replace('/<p>\s*?((<a.*?>)?<img[^>]+class="[^\"]*aligncenter[^\"]*".*?>(<\/a>)?)?\s*<\/p>/', '$1', $content);
    return $content;
}

it filters if the img tag has the class aligncenter and any class.