3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo() { $bar = 'herro'; $baz = 'strrev'; return compact('bar', 'baz'); } function hello(array $params) { extract($params); var_dump($bar, $baz); // yes, this is happening... } function hi(array $params) { list($meh, $hem) = $params; var_dump($meh, $hem); } $foo = foo(); hello($foo); hi($foo);
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
string(5) "herro" string(6) "strrev" Warning: Undefined array key 0 in /in/Q4Xti on line 20 Warning: Undefined array key 1 in /in/Q4Xti on line 20 NULL NULL
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
string(5) "herro" string(6) "strrev" Notice: Undefined offset: 0 in /in/Q4Xti on line 20 Notice: Undefined offset: 1 in /in/Q4Xti on line 20 NULL NULL
Output for 7.3.32 - 7.3.33
string(5) "herro" string(6) "strrev" NULL NULL
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
string(5) "herro" string(6) "strrev" Notice: Undefined offset: 1 in /in/Q4Xti on line 20 Notice: Undefined offset: 0 in /in/Q4Xti on line 20 NULL NULL
preferences:
278.41 ms | 402 KiB | 403 Q