3v4l.org

run code in 300+ PHP versions simultaneously
<?php printf("PHP %d\n", defined('PHP_MAJOR_VERSION') ? PHP_MAJOR_VERSION : PHP_VERSION); if (false) { $a = 1; $b = array(); echo $a + $b; } echo "Finished\n";
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
PHP 8 Finished
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
PHP 7 Finished
preferences:
98.28 ms | 1379 KiB | 4 Q