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<?php $alternatives = array( 'foo' => 0, 'foo1' => 0, 'foo3' => 0, ); asort($alternatives, SORT_STRING); print_r($alternatives); $keys = array_keys($alternatives); print_r($keys); sort($keys); print_r($keys); sort($keys, SORT_STRING); print_r($keys); sort($keys, SORT_NAT); print_r($keys);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [foo] => 0 [foo1] => 0 [foo3] => 0 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Fatal error: Uncaught Error: Undefined constant "SORT_NAT" in /in/mjj8q:21 Stack trace: #0 {main} thrown in /in/mjj8q on line 21
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Array ( [foo] => 0 [foo1] => 0 [foo3] => 0 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Warning: Use of undefined constant SORT_NAT - assumed 'SORT_NAT' (this will throw an Error in a future version of PHP) in /in/mjj8q on line 21 Warning: sort() expects parameter 2 to be int, string given in /in/mjj8q on line 21 Array ( [0] => foo [1] => foo1 [2] => foo3 )
Output for 7.2.0 - 7.2.33
Array ( [foo] => 0 [foo1] => 0 [foo3] => 0 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Warning: Use of undefined constant SORT_NAT - assumed 'SORT_NAT' (this will throw an Error in a future version of PHP) in /in/mjj8q on line 21 Warning: sort() expects parameter 2 to be integer, string given in /in/mjj8q on line 21 Array ( [0] => foo [1] => foo1 [2] => foo3 )
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Array ( [foo] => 0 [foo1] => 0 [foo3] => 0 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Notice: Use of undefined constant SORT_NAT - assumed 'SORT_NAT' in /in/mjj8q on line 21 Warning: sort() expects parameter 2 to be integer, string given in /in/mjj8q on line 21 Array ( [0] => foo [1] => foo1 [2] => foo3 )
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Array ( [foo3] => 0 [foo1] => 0 [foo] => 0 ) Array ( [0] => foo3 [1] => foo1 [2] => foo ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Array ( [0] => foo [1] => foo1 [2] => foo3 ) Notice: Use of undefined constant SORT_NAT - assumed 'SORT_NAT' in /in/mjj8q on line 21 Warning: sort() expects parameter 2 to be long, string given in /in/mjj8q on line 21 Array ( [0] => foo [1] => foo1 [2] => foo3 )

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