3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = array( array( 'id' => 1, 'value' => 1.2 ), array( 'id' => 2, 'value' => 2.5 ), array( 'id' => 3, 'value' => 'N/A' ) ); usort($data, fn($a, $b) => [$b['value'] !== 'N/A', $b['value']] <=> [$a['value'] !== 'N/A', $a['value']]); var_export($data);
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array ( 0 => array ( 'id' => 2, 'value' => 2.5, ), 1 => array ( 'id' => 1, 'value' => 1.2, ), 2 => array ( 'id' => 3, 'value' => 'N/A', ), )
preferences:
67.32 ms | 406 KiB | 5 Q