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<?php $a = array(); $a[] = 1; var_dump(array_keys($a)); array_shift($a); $a[] = 1; var_dump(array_keys($a));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kWjeI
function name:  (null)
number of ops:  21
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN_DIM                                               !0
          2        OP_DATA                                                  1
    5     3        INIT_FCALL                                               'var_dump'
          4        INIT_FCALL                                               'array_keys'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $3      
          7        SEND_VAR                                                 $3
          8        DO_ICALL                                                 
    6     9        INIT_FCALL                                               'array_shift'
         10        SEND_REF                                                 !0
         11        DO_ICALL                                                 
    7    12        ASSIGN_DIM                                               !0
         13        OP_DATA                                                  1
    8    14        INIT_FCALL                                               'var_dump'
         15        INIT_FCALL                                               'array_keys'
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                         $7      
         18        SEND_VAR                                                 $7
         19        DO_ICALL                                                 
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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