3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = PHP_INT_MAX; echo $x . PHP_EOL; $x += 1; echo $x . PHP_EOL;
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, 5.6.8 - 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
9223372036854775807 9.2233720368548E+18
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 9223372036854775807 9.2233720368548E+18
Output for 4.3.10 - 4.3.11, 5.0.2 - 5.0.4
Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/mMHQ0 on line 3 PHP_INT_MAX 1
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/mMHQ0 on line 3 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/mMHQ0 on line 4 PHP_INT_MAXPHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/mMHQ0 on line 6 1PHP_EOL

preferences:
225.49 ms | 402 KiB | 354 Q