php check file name exist, rename the file

Question

How do I check if file name exists, rename the file?

for example, I upload a image 1086_002.jpg if the file exists, rename the file as 1086_0021.

Answer 1

Try something like:

$fullpath = 'images/1086_002.jpg';
$additional = '1';

while (file_exists($fullpath)) {
    $info = pathinfo($fullpath);
    $fullpath = $info['dirname'] . '/'
              . $info['filename'] . $additional
              . '.' . $info['extension'];
}