Question

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PHP Strip_tags for div with a specific ID?

I have a string that contains two types of span tags. One type has an id that starts with the keyword “junk_”. The other type, however has some random ids. What I want to do is to use preg_replace to strip out only the “junk_” span tags and their content. I still want to keep the other spans. Here is the string that I have

<span id="bla">This is a test</span>. 
<span id="junk_74">Please</span> remove <span id="junk_75">all</span> junk spans.

The output I want should look like:

<span id="bla">This is a test</span>. remove junk spans.

Any help would be greatly appreciated.

Answer 1

$sHtml = preg_replace('/<span[^>]+id="junk_[^"]*"[^>]*>(.*?)<\/span>/s', '', $sHtml);

Also see this example.