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<?php $source = [ 0=>[ ['foo'=>['bar']]], 1=>[ ['biz'=>'baz'], ['a'=>'b']] ]; $return = []; $return =call_user_func_array('array_merge', $source); var_dump($return);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v9XjR
function name:  (null)
number of ops:  11
compiled vars:  !0 = $source, !1 = $return
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   10     1        ASSIGN                                                   !1, <array>
   12     2        INIT_FCALL                                               'array_merge'
          3        SEND_ARRAY                                               !0
          4        CHECK_UNDEF_ARGS                                         
          5        DO_FCALL                                      0  $4      
          6        ASSIGN                                                   !1, $4
   14     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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