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I wish to replace tags from a WYSIWYG editor to .
At the moment I am using the following code to achieve this.
$content = preg_replace('/<h1(.*?)<\/h1>/si', '<p class="heading-1"$1</p>', $content);
$content = preg_replace('/<h2(.*?)<\/h2>/si', '<p class="heading-2"$1</p>', $content);
$content = preg_replace('/<h3(.*?)<\/h3>/si', '<p class="heading-3"$1</p>', $content);
$content = preg_replace('/<h4(.*?)<\/h4>/si', '<p class="heading-4"$1</p>', $content);
$content = preg_replace('/<h5(.*?)<\/h5>/si', '<p class="heading-5"$1</p>', $content);
$content = preg_replace('/<h6(.*?)<\/h6>/si', '<p class="heading-6"$1</p>', $content);
As you can see this code is quite messy, it would be great if I could condense this into a single regular expression but I simply lack the ability to do so.
I had considered this line of code as an alternative.
$content = preg_replace('/<h(.*?)<\/h(.*?)>/si', '<p class="heading-$2"$1</p>', $content);
I'm not sure about using the above, clients have a tendency to copy content from other sites, paste it straight into their new WYSIWYG and i've seen anything from hr tags to heading tags popping in there.
What I require is simply the above single line, except the tag itself can only be 2 specific characters (So ensure the tag starts with a H and is followed by [1-6]).
I also require that the class it adds to the p tag is specific to the number use, eg: heading-1, heading-2.
Any help would be greatly appreciated, thank you for your time.
Result:
Note for existing classes: Even if your element doesn't have an existing class you have to add empty class attribute
class="". Instead this will not work as expected. :( Better solution is to use preg_replace_callback. Then you can check if a match exists and create yourp tagsmore accurately.