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<?php $a1 = [ ['127.0.0.1',11211], ['127.0.0.2',11211], ['127.0.0.4',11211], ]; $a2 = [ ['127.0.0.1',11211], ['127.0.0.2',11211], ['127.0.0.3',11211], ['127.0.0.4',11211], ]; print_r( array_udiff( $a1, $a2, function($a,$b){ return $a[0] === $b[0]; } ) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kJLbf
function name:  (null)
number of ops:  12
compiled vars:  !0 = $a1, !1 = $a2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    9     1        ASSIGN                                                   !1, <array>
   16     2        INIT_FCALL                                               'print_r'
   17     3        INIT_FCALL                                               'array_udiff'
   18     4        SEND_VAR                                                 !0
   19     5        SEND_VAR                                                 !1
   20     6        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FkJLbf%3A20%240'
   22     7        SEND_VAL                                                 ~4
          8        DO_ICALL                                         $5      
          9        SEND_VAR                                                 $5
         10        DO_ICALL                                                 
   24    11      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FkJLbf%3A20%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kJLbf
function name:  {closure}
number of ops:  7
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   20     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   21     2        FETCH_DIM_R                                      ~2      !0, 0
          3        FETCH_DIM_R                                      ~3      !1, 0
          4        IS_IDENTICAL                                     ~4      ~2, ~3
          5      > RETURN                                                   ~4
   22     6*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FkJLbf%3A20%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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