3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo pow(2,53)-1; echo "\n",PHP_INT_MAX,"\n"; var_dump(dechex(PHP_INT_MAX + (PHP_INT_MAX/2) ));
Output for 4.4.0 - 4.4.9, 5.0.5 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
9007199254740991 9223372036854775807 string(16) "c000000000000000"
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
9007199254740991 Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/068v6 on line 5 PHP_INT_MAX Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/068v6 on line 7 Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/068v6 on line 7 string(1) "0"