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run code in 300+ PHP versions simultaneously
<?php $data = [1,2,3,4,5,6,7]; for($i=count($data)-1; $i > 0; $i--) { var_dump($data[$i] . '' . $i); }
Output for 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 - 8.3.4, 8.3.6
string(2) "76" string(2) "65" string(2) "54" string(2) "43" string(2) "32" string(2) "21"
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 string(2) "76" string(2) "65" string(2) "54" string(2) "43" string(2) "32" string(2) "21"

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209.78 ms | 402 KiB | 206 Q