3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo pow(2,53)-1; echo "\n",PHP_INT_MAX,"\n"; echo(dechex(PHP_INT_MAX + PHP_INT_MAX));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
9007199254740991 9223372036854775807 Fatal error: Uncaught TypeError: dechex(): Argument #1 ($num) must be of type int, float given in /in/4BkCA:7 Stack trace: #0 /in/4BkCA(7): dechex(1.844674407371E+19) #1 {main} thrown in /in/4BkCA on line 7
Process exited with code 255.
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, 5.5.24 - 5.5.35, 5.6.7 - 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
9007199254740991 9223372036854775807 0
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/4BkCA on line 5 PHP_INT_MAX Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/4BkCA on line 7 Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/4BkCA on line 7 0

preferences:
238.43 ms | 402 KiB | 358 Q