3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = '4.18'; $b = array(1,2,3,4,5); var_dump(array_sum(array($a, $b))); var_dump($a + $b);
Output for 8.3.0 - 8.3.6
Warning: array_sum(): Addition is not supported on type array in /in/2UBEZ on line 5 float(4.18) Fatal error: Uncaught TypeError: Unsupported operand types: string + array in /in/2UBEZ:6 Stack trace: #0 {main} thrown in /in/2UBEZ on line 6
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
float(4.18) Fatal error: Uncaught TypeError: Unsupported operand types: string + array in /in/2UBEZ:6 Stack trace: #0 {main} thrown in /in/2UBEZ on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
float(4.18) Fatal error: Uncaught Error: Unsupported operand types in /in/2UBEZ:6 Stack trace: #0 {main} thrown in /in/2UBEZ on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 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
float(4.18) Fatal error: Unsupported operand types in /in/2UBEZ on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
float(4.18) Fatal error: Unsupported operand types in /in/2UBEZ on line 6

preferences:
219.38 ms | 401 KiB | 314 Q