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<?php $X = array('a' => 'a in X', 'ab' => 'ab in X', 'na' => null, 'nb' => 'nb in X'); $Y = array('b' => 'b in Y', 'ab' => 'ab in Y', 'na' => 'na in Y', 'nb' => null); $XY = array_merge($X, $Y); var_dump($XY);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/21B7C
function name:  (null)
number of ops:  11
compiled vars:  !0 = $X, !1 = $Y, !2 = $XY
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    6     2        INIT_FCALL                                               'array_merge'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        DO_ICALL                                         $5      
          6        ASSIGN                                                   !2, $5
    7     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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