3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = "/9j/2w=="; $finfo = new finfo(FILEINFO_MIME); echo $finfo->buffer(base64_decode($data));
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
image/jpeg; charset=iso-8859-1
preferences:
191.42 ms | 403 KiB | 212 Q