3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0; $i < 64; $i++) echo base64_encode($i);
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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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
MA==MQ==Mg==Mw==NA==NQ==Ng==Nw==OA==OQ==MTA=MTE=MTI=MTM=MTQ=MTU=MTY=MTc=MTg=MTk=MjA=MjE=MjI=MjM=MjQ=MjU=MjY=Mjc=Mjg=Mjk=MzA=MzE=MzI=MzM=MzQ=MzU=MzY=Mzc=Mzg=Mzk=NDA=NDE=NDI=NDM=NDQ=NDU=NDY=NDc=NDg=NDk=NTA=NTE=NTI=NTM=NTQ=NTU=NTY=NTc=NTg=NTk=NjA=NjE=NjI=NjM=

preferences:
235.05 ms | 406 KiB | 424 Q