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<?php $first = array( 'abc' => array() ); $alias = '30000'; var_dump(array_merge($first, array($alias => array())));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LW3aE
function name:  (null)
number of ops:  11
compiled vars:  !0 = $first, !1 = $alias
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    7     1        ASSIGN                                                   !1, '30000'
    9     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'array_merge'
          4        SEND_VAR                                                 !0
          5        INIT_ARRAY                                       ~4      <array>, !1
          6        SEND_VAL                                                 ~4
          7        DO_ICALL                                         $5      
          8        SEND_VAR                                                 $5
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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