使in_array不能在数值和alpha值之间进行转换

Question

I want to make in_array return TRUE in these cases:

in_array(0, [0]);
in_array(0, ['0']);
in_array('0', [0]);
in_array('0', ['0']);

But at the same time, return FALSE in cases such as this:

in_array(0, ['A']);
in_array('0', ['A']);
in_array('A', ['0']);
in_array('A', [0]);
in_array(1, [true]);

What's the simplest solution to this?

Answer 1

array_intersect works as expected except last case

php > var_dump((bool) array_intersect([0], [0]));
bool(true)
php > var_dump((bool) array_intersect([0], ['0']));
bool(true)
php > var_dump((bool) array_intersect(['0'], [0]));
bool(true)
php > var_dump((bool) array_intersect(['0'], ['0']));
bool(true)
php > var_dump((bool) array_intersect(['0'], ['A']));
bool(false)
php > var_dump((bool) array_intersect(['0'], ['A']));
bool(false)
php > var_dump((bool) array_intersect(['A'], ['0']));
bool(false)
php > var_dump((bool) array_intersect(['A'], [0]));
bool(false)
php > var_dump((bool) array_intersect([1], [true]));
bool(true)