3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class Abstract1 { public function test1 (array $arr1 = [], array &$arr2 = []) {}; } abstract class Abstract2 extends Abstract1 { public function test1 (array $arr1 = []) {}; }
Output for 7.1.0 - 7.1.7
Parse error: syntax error, unexpected ';', expecting function (T_FUNCTION) or const (T_CONST) in /in/TSAWI on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Parse error: syntax error, unexpected ';', expecting function (T_FUNCTION) in /in/TSAWI on line 4
Process exited with code 255.
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