How to strip out html with php inside a given div tag?


I would like to replace some text found in a particular div tag.

I managed to do this myself but had some limitations - cannot replace data found in a div tag when it is enclosed in another tag. eg: <div id="replace"><strong>5336</strong></div>

If the <strong> tag was not there the below php function would have replaced the content with $appendContent.
$newContent = preg_replace('#<div id="replace">[^<]*</div>#', '<div id="replace">'.$appendContent."</div>", $oldContent);

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Beverley PortlockCommented:
Why not just simplify the test?

$newContent = preg_replace('#<div id="replace">(.+)</div>#', '<div id="replace">'.$appendContent."</div>", $oldContent);
RassacAuthor Commented:
Thanks! that worked perfectly well! Do you know where I can find our what these type of symbols mean "(.+)" please?
Beverley PortlockCommented:
The dot (.) means "any character", the plus means "one or more times" so .+ means any character occurring 1 or more times.  Regular expressions can be highly complex and difficult to read or set up. Keep them as basic and simple as possible. Start with these articles

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RassacAuthor Commented:
GREAT! Thanks :)
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