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<?php $a = array('code' => 500, 'am' => 600, 'cc' => 560); $b = array('am' => 40, 'dd' => 100); var_dump(array_merge($a, $b)); unset($a['coxde']);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/APZ9j
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    6     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'array_merge'
          4        SEND_VAR                                                 !0
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $4      
          7        SEND_VAR                                                 $4
          8        DO_ICALL                                                 
    8     9        UNSET_DIM                                                !0, 'coxde'
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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