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phpstringfilenames

Remove image extension, rename and restore

Say the image is called:gecko.jpg

Can I first remove ".jpg" and add "-100x100" after "gecko", and then put the extension back, so it would be "gecko-100x100.jpg"?

Solution

  • Yes, quite simply with PHP's string functions in conjunction with basename()

    $base = basename($filename, ".jpg");
echo $base . "-100x100" . ".jpg";

    Or to do it with any filetype using strrpos() to locate the extension by finding the last .

    // Use strrpos() & substr() to get the file extension
$ext = substr($filename, strrpos($filename, "."));
// Then stitch it together with the new string and file's basename
$newfilename = basename($filename, $ext) . "-100x100" . $ext;

    --

    // Some examples in action...
$filename = "somefile.jpg";
$ext = substr($filename, strrpos($filename, "."));
$newfilename = basename($filename, $ext) . "-100x100" . $ext;
echo $newfilename;
// outputs somefile-100x100.jpg

// Same thing with a .gif
$filename = "somefile.gif";
// outputs somefile-100x100.gif