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<?php function test_callback() { var_dump(count(func_get_args())); var_dump(func_get_args()); } $items = array('one', 'two', 'three'); array_walk(array_filter($items, 'is_string'), 'test_callback');
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 passed by reference in /in/pS2ru on line 10 int(2) array(2) { [0]=> string(3) "one" [1]=> int(0) } int(2) array(2) { [0]=> string(3) "two" [1]=> int(1) } int(2) array(2) { [0]=> string(5) "three" [1]=> int(2) }
Output for 7.3.32 - 7.3.33
int(2) array(2) { [0]=> string(3) "one" [1]=> int(0) } int(2) array(2) { [0]=> string(3) "two" [1]=> int(1) } int(2) array(2) { [0]=> string(5) "three" [1]=> int(2) }
Output for 5.6.0 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/pS2ru on line 10 int(2) array(2) { [0]=> string(3) "one" [1]=> int(0) } int(2) array(2) { [0]=> string(3) "two" [1]=> int(1) } int(2) array(2) { [0]=> string(5) "three" [1]=> int(2) }

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182.91 ms | 402 KiB | 222 Q