3v4l.org

run code in 300+ PHP versions simultaneously
<?php set_time_limit ( 0 ); $i = 0; while ( true ) { if (crc32 ( base64_encode ( $i ) ) == 323322056) { echo base64_encode ( $i ); exit (); } $i ++; }
Output for 4.3.1 - 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, 5.4.2 - 5.4.45, 5.5.15 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 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

Process exited with code 137.
Output for 4.3.0
preferences:
244.93 ms | 401 KiB | 314 Q