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<?php $arr = [ 5 => 'b', 10 => 'c', ]; var_export($arr); echo PHP_EOL; array_unshift($arr, 'a'); var_export($arr); echo PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RPa3b
function name:  (null)
number of ops:  14
compiled vars:  !0 = $arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    7     1        INIT_FCALL                                               'var_export'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
    8     4        ECHO                                                     '%0A'
   10     5        INIT_FCALL                                               'array_unshift'
          6        SEND_REF                                                 !0
          7        SEND_VAL                                                 'a'
          8        DO_ICALL                                                 
   11     9        INIT_FCALL                                               'var_export'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                                 
   12    12        ECHO                                                     '%0A'
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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