3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ (object) ['ID' => 1, 'name' => 'Mary Jane', 'count' => '420'], (object) ['ID' => 2, 'name' => 'Johnny', 'count' => '23420'], (object) ['ID' => 3, 'name' => 'Kathy', 'count' => '4354'], ]; usort($array, fn($a,$b) => $a->count <=> $b->count); var_export($array);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array ( 0 => (object) array( 'ID' => 1, 'name' => 'Mary Jane', 'count' => '420', ), 1 => (object) array( 'ID' => 3, 'name' => 'Kathy', 'count' => '4354', ), 2 => (object) array( 'ID' => 2, 'name' => 'Johnny', 'count' => '23420', ), )
Output for 7.3.4
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ')' in /in/sCfsH on line 9
Process exited with code 255.
preferences:
134.14 ms | 401 KiB | 122 Q