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<?php // SETUP CODE class A { function __construct($val) { $this->val = $val; } } $objs = [ new A(3), new A(5), new A(2), new A(8), new A(1), ]; // AMAZING max_by IMPL :P $res = array_reduce($objs, function ($c, $o) { if ($c) { $c = max($o->val, $c->val); return $o->val == $c->val ? $o : $c; } }); var_dump($res);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Creation of dynamic property A::$val is deprecated in /in/alKWa on line 6 Deprecated: Creation of dynamic property A::$val is deprecated in /in/alKWa on line 6 Deprecated: Creation of dynamic property A::$val is deprecated in /in/alKWa on line 6 Deprecated: Creation of dynamic property A::$val is deprecated in /in/alKWa on line 6 Deprecated: Creation of dynamic property A::$val is deprecated in /in/alKWa on line 6 NULL
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
NULL
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/alKWa on line 10
Process exited with code 255.
Output for 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/alKWa on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/alKWa on line 10
Process exited with code 255.
Output for 4.3.0

Process exited with code 137.
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232.85 ms | 401 KiB | 326 Q