Regex to remove multimedia extensions from filename

Question

I want strip all multimedia file extensions from a filename using preg_replace().

File extensions to remove:

• .m4a
• .wav
• .ogg
• .flac
• .avi
• .flv
• .mov
• .m3u
• .mid
• .webm
• .mkv
• .asf
• .mpg
• .mpeg
• .mp(INT)
• .mpg(INT)
• .mpeg(INT)
• .aif
• .aiff
• .3gp
• .3gpp
• .wma
• .wmv

My coding attempt:

$filename = 'bla.mp3 bla bla.mid.mp3.mp4.mid.mp10.mpeg.mpg.mpg10';
echo preg_replace('/[\.(m4a|wav|ogg|flac|avi|flv|mov|m3u|mid|webm|mkv|asf|wm(a|v)|mp(\d+)|aif(?:f?)|3gp(?:p?))]*$/', '', $filename);

Answer 1

try this

$filename = 'bla.mp3 bla bla.mid.mp3.mp4.mid.mp10.mpeg.mpg.mpg10';
echo preg_replace('/\.(m4a|wav|ogg|flac|avi|flv|mov|wmv|m3u|mid|wma|webm|mkv|asf|mp(\d+)|aif(?:f?)|3gp(?:p?)|mp(eg(\d+)?|g(\d+)?))/g', '', $filename);

you can check it out here

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Edit

echo preg_replace('/\.(m4a|wav|ogg|flac|avi|flv|mov|wmv|m3u|mid|wma|webm|mkv|asf|mp(\d+)|aif(?:f?)|3gp(?:p?)|mpe?g\d*)/g', '', $filename);

you can check it out here

---

Final Edit

removed handling mp(\d+) and handling mpe?g\d* and used only mp(e?g)?\d* to handle both cases and that is the simplest it could get -in my humble opinion-

echo preg_replace('/\.(m4a|wav|ogg|flac|avi|flv|mov|wmv|m3u|mid|wma|webm|mkv|asf|aif(?:f?)|3gp(?:p?)|mp(e?g)?\d*)/g', '', $filename);

you can check it out here

author edit

this is the simplified form of it

echo preg_replace('/\.a(if(?:f?)|sf|vi)|fl(ac|v)|m(3u|4a|id|kv|ov|(p(e?g)?\d*))|ogg|‌​w(av|ebm|m(a|v))/g', '', $filename);