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Editorial Team
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Asked: 2026-05-12T21:07:36+00:00

How do I change a files file-extension name in PHP? For example: $filename=’234230923_picture.bmp’ and

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How do I change a files file-extension name in PHP?

For example: $filename='234230923_picture.bmp' and I want the extension to change to jpg.

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1 Answer

  1. Editorial Team

    Just replace it with regexp:

    $filename = preg_replace('"\.bmp$"', '.jpg', $filename);

    You can also extend this code to remove other image extensions, not just bmp:

    $filename = preg_replace('"\.(bmp|gif)$"', '.jpg', $filename);
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