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<?php function setByLink( $tree, &$dst ) { $dst = $tree[0]; $tree[] = 'Hi'; } $tree = new ArrayObject([ new ArrayObject([ 1, 2 ]), 3 ]); setByLink( $tree, $arr ); $arr[] = 'Hello'; var_dump( is_array( $tree ), $tree );
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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
bool(false) object(ArrayObject)#1 (1) { ["storage":"ArrayObject":private]=> array(3) { [0]=> object(ArrayObject)#2 (1) { ["storage":"ArrayObject":private]=> array(3) { [0]=> int(1) [1]=> int(2) [2]=> string(5) "Hello" } } [1]=> int(3) [2]=> string(2) "Hi" } }

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177.5 ms | 405 KiB | 225 Q