检查其他数组中的关联数组？

Question

I have two array $A,$B

$B = Array
(
    [0] => Array
        (
            [id_participant] => 94
            [full_name] => soeng makara
        )

    [1] => Array
        (
            [id_participant] => 95
            [full_name] => sok sao
        )

)

$A = Array
(
    [0] => Array
        (
            [id_participant] => 95
            [full_name] => sok sao
        )
)

Anyone could help me How can I check array $A in array $B in that case.

Answer 1

Simply:

if (in_array($A[0], $B))
{
  // in array
}