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<?php function test_one(&$arr) { $arr = array_reverse($arr); } function test_two(&$arr) { $arr =& array_reverse($arr); } $arr1 = array(1,2,3); $arr2 = array(4,5,6); test_one($arr1); test_two($arr2); print_r($arr1); print_r($arr2);
Output for 4.4.0 - 4.4.9, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 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
Notice: Only variables should be assigned by reference in /in/qPfgb on line 7 Array ( [0] => 3 [1] => 2 [2] => 1 ) Array ( [0] => 6 [1] => 5 [2] => 4 )
Output for 7.3.32 - 7.3.33
Array ( [0] => 3 [1] => 2 [2] => 1 ) Array ( [0] => 6 [1] => 5 [2] => 4 )
Output for 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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Strict Standards: Only variables should be assigned by reference in /in/qPfgb on line 7 Array ( [0] => 3 [1] => 2 [2] => 1 ) Array ( [0] => 6 [1] => 5 [2] => 4 )
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
Array ( [0] => 3 [1] => 2 [2] => 1 ) Array ( [0] => 4 [1] => 5 [2] => 6 )

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244.91 ms | 402 KiB | 328 Q