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<?php $regex = '([^a]*)*a\\{'; $test_string = 'AAAAAAAAAAAAAA{AA'; echo "1:".mb_ereg_replace('/'.$regex.'/','WORKED',$test_string)."\n"; echo "2:".preg_replace('/'.$regex.'/u','WORKED',$test_string)."\n"; echo "3:".preg_replace('/'.$regex.'/','WORKED',$test_string)."\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Gg1WV
function name:  (null)
number of ops:  33
compiled vars:  !0 = $regex, !1 = $test_string
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%28%5B%5Ea%5D%2A%29%2Aa%5C%7B'
    3     1        ASSIGN                                                   !1, 'AAAAAAAAAAAAAA%7BAA'
    4     2        INIT_FCALL                                               'mb_ereg_replace'
          3        CONCAT                                           ~4      '%2F', !0
          4        CONCAT                                           ~5      ~4, '%2F'
          5        SEND_VAL                                                 ~5
          6        SEND_VAL                                                 'WORKED'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                         $6      
          9        CONCAT                                           ~7      '1%3A', $6
         10        CONCAT                                           ~8      ~7, '%0A'
         11        ECHO                                                     ~8
    5    12        INIT_FCALL                                               'preg_replace'
         13        CONCAT                                           ~9      '%2F', !0
         14        CONCAT                                           ~10     ~9, '%2Fu'
         15        SEND_VAL                                                 ~10
         16        SEND_VAL                                                 'WORKED'
         17        SEND_VAR                                                 !1
         18        DO_ICALL                                         $11     
         19        CONCAT                                           ~12     '2%3A', $11
         20        CONCAT                                           ~13     ~12, '%0A'
         21        ECHO                                                     ~13
    6    22        INIT_FCALL                                               'preg_replace'
         23        CONCAT                                           ~14     '%2F', !0
         24        CONCAT                                           ~15     ~14, '%2F'
         25        SEND_VAL                                                 ~15
         26        SEND_VAL                                                 'WORKED'
         27        SEND_VAR                                                 !1
         28        DO_ICALL                                         $16     
         29        CONCAT                                           ~17     '3%3A', $16
         30        CONCAT                                           ~18     ~17, '%0A'
         31        ECHO                                                     ~18
         32      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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