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Need to use regexp to change a variable.. Pls help!

Posted on 2006-10-29
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Last Modified: 2006-12-05
I'm using a filename in a variable, but ned to dynamically change the variable within the page. For example, if my filename is mainpage.htm, then I want the result to be mainpage_rt.htm. It won't always be an htm page, but it will always have an extension. Please help. THanks in advance for all the help.
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Question by:bemara57
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KarlPurkhardt earned 2000 total points
ID: 17829210
Hi,

Try the following regex:

$filename = 'somepage.html';
$add_string = '_r';

$filename = preg_replace('/(.*)(\.\w{2,5})/i', "$1$add_string$2", $filename);
      
echo 'Filename is now: ' . $filename;
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