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<?php $aa = [ 'schemas', 'id', 'externalId', 'meta', 'userName', 'active', 'emails', 'orgname', 'department', 'roles', 'address', 'phoneNumbers' ]; $attributes = ['schemas', 'id', 'externalId']; $re = array_diff($attributes, $aa); var_dump($re);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/daifM
function name:  (null)
number of ops:  11
compiled vars:  !0 = $aa, !1 = $attributes, !2 = $re
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   4     0  E >   ASSIGN                                                   !0, <array>
   7     1        ASSIGN                                                   !1, <array>
   9     2        INIT_FCALL                                               'array_diff'
         3        SEND_VAR                                                 !1
         4        SEND_VAR                                                 !0
         5        DO_ICALL                                         $5      
         6        ASSIGN                                                   !2, $5
  11     7        INIT_FCALL                                               'var_dump'
         8        SEND_VAR                                                 !2
         9        DO_ICALL                                                 
        10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.4.0