How can I change a file's extension using PHP?

Question

How can I change a file\'s extension using PHP?

Ex: photo.jpg to photo.exe

Answer 1

Replace extension, keep path information

function replace_extension($filename, $new_extension) {
    $info = pathinfo($filename);
    return ($info['dirname'] ? $info['dirname'] . DIRECTORY_SEPARATOR : '') 
        . $info['filename'] 
        . '.' 
        . $new_extension;
}