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run code in 300+ PHP versions simultaneously
<?php $a = 10000; $b = 11111; $c = $a & $b; $r = $a ^ $b; var_dump(decbin($a), decbin($b), decbin($c), decbin($r), '---'); while ($c) { $shift = $c << 1; $c = $r & $shift; $r ^= $shift; var_dump(decbin($shift), decbin($c), decbin($r), $r, '---'); } var_dump($r);
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 - 5.6.40, 7.0.0 - 7.0.33, 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(14) "10011100010000" string(14) "10101101100111" string(14) "10001100000000" string(12) "110001110111" string(3) "---" string(15) "100011000000000" string(11) "10000000000" string(15) "100101001110111" int(19063) string(3) "---" string(12) "100000000000" string(12) "100000000000" string(15) "100001001110111" int(17015) string(3) "---" string(13) "1000000000000" string(1) "0" string(15) "101001001110111" int(21111) string(3) "---" int(21111)
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(14) "10011100010000" string(14) "10101101100111" string(14) "10001100000000" string(12) "110001110111" string(3) "---" string(15) "100011000000000" string(11) "10000000000" string(15) "100101001110111" int(19063) string(3) "---" string(12) "100000000000" string(12) "100000000000" string(15) "100001001110111" int(17015) string(3) "---" string(13) "1000000000000" string(1) "0" string(15) "101001001110111" int(21111) string(3) "---" int(21111)

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