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<?php $first = [ 'm' => 'n', ]; $second = [ 'm' => 'N', 'M' => 'n', ]; // wtf? var_export( array_diff_uassoc($first, $second, 'strcasecmp') );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Wj5u4
function name:  (null)
number of ops:  11
compiled vars:  !0 = $first, !1 = $second
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    7     1        ASSIGN                                                       !1, <array>
   13     2        INIT_FCALL                                                   'var_export'
   14     3        INIT_FCALL                                                   'array_diff_uassoc'
          4        SEND_VAR                                                     !0
          5        SEND_VAR                                                     !1
          6        SEND_VAL                                                     'strcasecmp'
          7        DO_ICALL                                             $4      
          8        SEND_VAR                                                     $4
   13     9        DO_ICALL                                                     
   15    10      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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