3v4l.org

run code in 300+ PHP versions simultaneously
<?php include "php://filter/read=string.toupper/resource=file:///etc/passwd\0";
Output for 5.3.4 - 5.3.5, 5.3.7 - 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 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 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
Warning: include(): Failed opening 'php://filter/read=string.toupper/resource=file:///etc/passwd' for inclusion (include_path='.:') in /in/NGFLi on line 2
Output for 5.3.0 - 5.3.3, 5.3.6
ROOT:X:0:0:ROOT:/ROOT:/BIN/SH NOBODY:X:99:99:NOBODY:/:/BIN/FALSE

preferences:
190.22 ms | 401 KiB | 257 Q