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<?php $record_1 = new stdClass(); $record_1->id = 1; $record_2 = new stdClass(); $record_2->id = 2; $record_3 = new stdClass(); $record_3->id = 3; $records = [ $record_1, $record_2, $record_3, ]; $result = array_column($records, function($record) { if ($record->id > 1) return $record; }); var_dump($result);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: array_column(): Argument #2 ($column_key) must be of type string|int|null, Closure given in /in/g0JUY:21 Stack trace: #0 /in/g0JUY(21): array_column(Array, Object(Closure)) #1 {main} thrown in /in/g0JUY on line 21
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Object of class Closure could not be converted to string in /in/g0JUY:21 Stack trace: #0 /in/g0JUY(21): array_column(Array, Object(Closure)) #1 {main} thrown in /in/g0JUY on line 21
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Recoverable fatal error: Object of class Closure could not be converted to string in /in/g0JUY on line 21
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
Catchable fatal error: Object of class Closure could not be converted to string in /in/g0JUY on line 21
Process exited with code 255.

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