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run code in 300+ PHP versions simultaneously
<?php // http://williamsoriscompetition.com/enter.php?id=c54eaaa334be71e3da26536ffb365337185985da&score=1%2E926627&code=960349492860 $id = 'c54eaaa334be71e3da26536ffb365337185985da'; $score = urldecode('1%2E926627'); var_dump($score); $num1 = toInt32(substr($id, 0, 1)) * toInt32(substr($id, -1, 1)); $num2 = toInt32(substr($score, 0, 1)) * toInt32(substr($id, 3, 1)); $num3 = toInt32(substr($id, 2, 1)) * toInt32(substr($id, -1, 1)); $code = $num1 . $num2 . $num3; var_dump($code); function toInt32($value) { $intval = hexdec($value); var_dump($value, $intval); return (PHP_INT_SIZE === 8) ? ($intval - 0x100000000) : $intval; }
Output for 4.4.0 - 4.4.9, 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 - 5.6.28, 7.0.0 - 7.0.20, 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(8) "1.926627" string(1) "c" int(12) string(1) "a" int(10) string(1) "1" int(1) string(1) "e" int(14) string(1) "4" int(4) string(1) "a" int(10) string(55) "1.844674397922E+191.8446744009285E+191.844674401358E+19"
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(8) "1.926627" string(1) "c" int(12) string(1) "a" int(10) string(1) "1" int(1) string(1) "e" int(14) string(1) "4" int(4) string(1) "a" int(10) string(55) "1.844674397922E+191.8446744009285E+191.844674401358E+19"
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
string(8) "1.926627" string(1) "c" int(12) Notice: Use of undefined constant PHP_INT_SIZE - assumed 'PHP_INT_SIZE' in /in/m4Vdi on line 23 string(1) "a" int(10) Notice: Use of undefined constant PHP_INT_SIZE - assumed 'PHP_INT_SIZE' in /in/m4Vdi on line 23 string(1) "1" int(1) Notice: Use of undefined constant PHP_INT_SIZE - assumed 'PHP_INT_SIZE' in /in/m4Vdi on line 23 string(1) "e" int(14) Notice: Use of undefined constant PHP_INT_SIZE - assumed 'PHP_INT_SIZE' in /in/m4Vdi on line 23 string(1) "4" int(4) Notice: Use of undefined constant PHP_INT_SIZE - assumed 'PHP_INT_SIZE' in /in/m4Vdi on line 23 string(1) "a" int(10) Notice: Use of undefined constant PHP_INT_SIZE - assumed 'PHP_INT_SIZE' in /in/m4Vdi on line 23 string(7) "1201440"

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