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<?php $a2 = array_diff(range(1, 4), range(1, 4)); var_dump($a2); $a2[] = 'potato'; $a2[] = 'potato'; $a2[] = 'potato'; $a2[] = 'potato'; unset($a2[5], $a2[6], $a2[7], $a2[8]); $a3 = $a2; $a2[] = 'five'; var_dump($a2); $a3[] = 'jam'; var_dump($a3);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nvUMt
function name:  (null)
number of ops:  40
compiled vars:  !0 = $a2, !1 = $a3
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'array_diff'
          1        INIT_FCALL                                               'range'
          2        SEND_VAL                                                 1
          3        SEND_VAL                                                 4
          4        DO_ICALL                                         $2      
          5        SEND_VAR                                                 $2
          6        INIT_FCALL                                               'range'
          7        SEND_VAL                                                 1
          8        SEND_VAL                                                 4
          9        DO_ICALL                                         $3      
         10        SEND_VAR                                                 $3
         11        DO_ICALL                                         $4      
         12        ASSIGN                                                   !0, $4
    4    13        INIT_FCALL                                               'var_dump'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                                 
    6    16        ASSIGN_DIM                                               !0
         17        OP_DATA                                                  'potato'
    7    18        ASSIGN_DIM                                               !0
         19        OP_DATA                                                  'potato'
    8    20        ASSIGN_DIM                                               !0
         21        OP_DATA                                                  'potato'
    9    22        ASSIGN_DIM                                               !0
         23        OP_DATA                                                  'potato'
   10    24        UNSET_DIM                                                !0, 5
         25        UNSET_DIM                                                !0, 6
         26        UNSET_DIM                                                !0, 7
         27        UNSET_DIM                                                !0, 8
   12    28        ASSIGN                                                   !1, !0
   14    29        ASSIGN_DIM                                               !0
         30        OP_DATA                                                  'five'
   15    31        INIT_FCALL                                               'var_dump'
         32        SEND_VAR                                                 !0
         33        DO_ICALL                                                 
   17    34        ASSIGN_DIM                                               !1
         35        OP_DATA                                                  'jam'
   18    36        INIT_FCALL                                               'var_dump'
         37        SEND_VAR                                                 !1
         38        DO_ICALL                                                 
         39      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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