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<?php $data = [27, 38, 58, 82]; usort( $data, function ($a, $b) { echo "Comparing $a - $b", PHP_EOL; echo 'Element A (', $a ,') should go ', (($a - $b < 0) ? 'before' : 'after'), ' element B (', $b, ')', PHP_EOL; return $b - $a; } );
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Comparing 27 - 38 Element A (27) should go before element B (38) Comparing 58 - 38 Element A (58) should go after element B (38) Comparing 27 - 82 Element A (27) should go before element B (82) Comparing 38 - 82 Element A (38) should go before element B (82) Comparing 58 - 82 Element A (58) should go before element B (82)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Comparing 38 - 27 Element A (38) should go after element B (27) Comparing 82 - 38 Element A (82) should go after element B (38) Comparing 58 - 38 Element A (58) should go after element B (38) Comparing 82 - 58 Element A (82) should go after element B (58)
preferences:
184.33 ms | 402 KiB | 183 Q