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run code in 300+ PHP versions simultaneously
<?php // freitag = 5 for ($i=1; $i<8; $i++) { $neu = (1 + $i)%7; echo "\n-> 1 i:". $i." <->".$neu; }
Output for 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 - 8.3.4, 8.3.6
-> 1 i:1 <->2 -> 1 i:2 <->3 -> 1 i:3 <->4 -> 1 i:4 <->5 -> 1 i:5 <->6 -> 1 i:6 <->0 -> 1 i:7 <->1
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 -> 1 i:1 <->2 -> 1 i:2 <->3 -> 1 i:3 <->4 -> 1 i:4 <->5 -> 1 i:5 <->6 -> 1 i:6 <->0 -> 1 i:7 <->1

preferences:
194.37 ms | 402 KiB | 217 Q