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<?php $matches = []; preg_match('/^(foo)(bar)(baz)?$/', 'foobar', list($foo, $bar, $baz) = $matches); print_r(get_defined_vars());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/efV7v
function name:  (null)
number of ops:  19
compiled vars:  !0 = $matches, !1 = $foo, !2 = $bar, !3 = $baz
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%28foo%29%28bar%29%28baz%29%3F%24%2F'
          3        SEND_VAL                                                 'foobar'
          4        QM_ASSIGN                                        ~5      !0
          5        FETCH_LIST_R                                     $6      ~5, 0
          6        ASSIGN                                                   !1, $6
          7        FETCH_LIST_R                                     $8      ~5, 1
          8        ASSIGN                                                   !2, $8
          9        FETCH_LIST_R                                     $10     ~5, 2
         10        ASSIGN                                                   !3, $10
         11        SEND_VAL_EX                                              ~5
         12        DO_ICALL                                                 
    6    13        INIT_FCALL                                               'print_r'
         14        INIT_FCALL                                               'get_defined_vars'
         15        DO_ICALL                                         $13     
         16        SEND_VAR                                                 $13
         17        DO_ICALL                                                 
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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