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<?php $string = '?foo&bar[]=0&bar[]=2'; $res1=$res2=[]; parse_str($string,$res1); mb_parse_str($string,$res2); echo 'parse_str()'.PHP_EOL; print_r($res1); echo 'mb_parse_str()'.PHP_EOL; print_r($res2);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/r2KO1
function name:  (null)
number of ops:  20
compiled vars:  !0 = $string, !1 = $res1, !2 = $res2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%3Ffoo%26bar%5B%5D%3D0%26bar%5B%5D%3D2'
    5     1        ASSIGN                                           ~4      !2, <array>
          2        ASSIGN                                                   !1, ~4
    7     3        INIT_FCALL                                               'parse_str'
          4        SEND_VAR                                                 !0
          5        SEND_REF                                                 !1
          6        DO_ICALL                                                 
    8     7        INIT_FCALL                                               'mb_parse_str'
          8        SEND_VAR                                                 !0
          9        SEND_REF                                                 !2
         10        DO_ICALL                                                 
    9    11        ECHO                                                     'parse_str%28%29%0A'
   10    12        INIT_FCALL                                               'print_r'
         13        SEND_VAR                                                 !1
         14        DO_ICALL                                                 
   11    15        ECHO                                                     'mb_parse_str%28%29%0A'
   12    16        INIT_FCALL                                               'print_r'
         17        SEND_VAR                                                 !2
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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