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<?php $a = array(1,-1,0,NULL,2,0,-2); $b = array(NULL,-1,0,1,2,-2, 0); $c = array(0,1,-1,0,-2,2,NULL); echo "asort(array(1,-1,0,NULL,2,0,-2))\n"; asort($a, SORT_NUMERIC); print_r($a); echo "\nasort(array(NULL,-1,0,1,2,-2, 0))\n"; asort($b, SORT_NUMERIC); print_r($b); echo "\nasort(array(0,1,-1,0,-2,2,NULL))\n"; asort($c, SORT_NUMERIC); print_r($c);
Output for 7.0.0 - 7.0.33, 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, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
asort(array(1,-1,0,NULL,2,0,-2)) Array ( [6] => -2 [1] => -1 [2] => 0 [3] => [5] => 0 [0] => 1 [4] => 2 ) asort(array(NULL,-1,0,1,2,-2, 0)) Array ( [5] => -2 [1] => -1 [0] => [2] => 0 [6] => 0 [3] => 1 [4] => 2 ) asort(array(0,1,-1,0,-2,2,NULL)) Array ( [4] => -2 [2] => -1 [0] => 0 [3] => 0 [6] => [1] => 1 [5] => 2 )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
asort(array(1,-1,0,NULL,2,0,-2)) Array ( [6] => -2 [1] => -1 [5] => 0 [3] => [2] => 0 [0] => 1 [4] => 2 ) asort(array(NULL,-1,0,1,2,-2, 0)) Array ( [5] => -2 [1] => -1 [6] => 0 [2] => 0 [0] => [3] => 1 [4] => 2 ) asort(array(0,1,-1,0,-2,2,NULL)) Array ( [4] => -2 [2] => -1 [6] => [3] => 0 [0] => 0 [1] => 1 [5] => 2 )

preferences:
292.81 ms | 404 KiB | 422 Q