search in php multidimensional array

Question

Hi, I would like to find presents of value in a two-dimensional array according to its key(index).Is there any solution in php? Consider my array is as follows

Array ( [0] => Array ( [id] => 3 [value] => tom ) 
        [1] => Array ( [id] => 4 [value] => john ) 
    )

How can I find john is present in above array.Already tried it by in_array().But which not help me...Please any suggections.