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run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(pow(2,53)-1); var_dump(PHP_INT_MAX); var_dump(PHP_INT_MAX * 2 +1); var_dump(dechex(PHP_INT_MAX)); var_dump(dechex(PHP_INT_MAX * 2 + 1));
Output for 4.4.0 - 4.4.9, 5.0.5 - 7.1.0
int(9007199254740991) int(9223372036854775807) float(1.844674407371E+19) string(16) "7fffffffffffffff" string(1) "0"
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
int(9007199254740991) Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/IANWN on line 4 string(11) "PHP_INT_MAX" Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/IANWN on line 5 int(1) Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/IANWN on line 6 string(1) "0" Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/IANWN on line 7 string(1) "1"