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- // Ordered by execution speed
- $ext = pathinfo($filename, PATHINFO_EXTENSION);
- $ext = substr(strrchr($filename, '.'), 1);
- $ext = substr($filename, strrpos($filename, '.') + 1);
- $ext = preg_replace('/^.*\.([^.]+)$/D', '$1', $filename);
- $ext = end(explode('.', $filename));
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