3v4l.org

run code in 300+ PHP versions simultaneously
<?php $matches = ['', 3, 2]; $min = -str_repeat(9, -str_repeat(9, $matches[1] - $matches[2])); var_dump($min);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ValueError: str_repeat(): Argument #2 ($times) must be greater than or equal to 0 in /in/Q4ZUg:5 Stack trace: #0 /in/Q4ZUg(5): str_repeat('9', -9) #1 {main} thrown in /in/Q4ZUg on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: str_repeat(): Second argument has to be greater than or equal to 0 in /in/Q4ZUg on line 5 int(0)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Q4ZUg on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Q4ZUg on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Q4ZUg on line 3
Process exited with code 255.

preferences:
284.62 ms | 401 KiB | 459 Q