check multiple values exists php array

Question

I have an array in PHP

$permission = array( \"admin\", \"moderator\", \"guest\"  );

and i have another array

$userRoles = a         


        

Answer 1

Use array_intersect

array_intersect — Computes the intersection of arrays

array array_intersect ( array $array1 , array $array2 [, array $ ... ] )

array_intersect() returns an array containing all the values of array1 that are present in all the arguments. Note that keys are preserved.

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Answer 2

Use array_intersect

count(array_intersect($permission, $userRoles));