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<?php $m1 = new Map(array('a' => 1, 'b' => 2)); $m2 = new Map(array('b' => 3, 'c' => 4)); var_dump($m1 += $m2);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0sqW2
function name:  (null)
number of ops:  13
compiled vars:  !0 = $m1, !1 = $m2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'Map'
          1        SEND_VAL_EX                                              <array>
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    4     4        NEW                                              $5      'Map'
          5        SEND_VAL_EX                                              <array>
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $5
    6     8        INIT_FCALL                                               'var_dump'
          9        ASSIGN_OP                                     1  ~8      !0, !1
         10        SEND_VAL                                                 ~8
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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