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<?php var_dump(ini_get("pcre.backtrack_limit")); $a = "aa" . str_repeat("a", 2000000) . "TESTqqTEST"; echo strlen($a); var_dump(preg_match('/TEST.*TEST/sim', $a));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UvltT
function name:  (null)
number of ops:  23
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'ini_get'
          2        SEND_VAL                                                 'pcre.backtrack_limit'
          3        DO_ICALL                                         $1      
          4        SEND_VAR                                                 $1
          5        DO_ICALL                                                 
    5     6        INIT_FCALL                                               'str_repeat'
          7        SEND_VAL                                                 'a'
          8        SEND_VAL                                                 2000000
          9        DO_ICALL                                         $3      
         10        CONCAT                                           ~4      'aa', $3
         11        CONCAT                                           ~5      ~4, 'TESTqqTEST'
         12        ASSIGN                                                   !0, ~5
    6    13        STRLEN                                           ~7      !0
         14        ECHO                                                     ~7
    9    15        INIT_FCALL                                               'var_dump'
         16        INIT_FCALL                                               'preg_match'
         17        SEND_VAL                                                 '%2FTEST.%2ATEST%2Fsim'
         18        SEND_VAR                                                 !0
         19        DO_ICALL                                         $8      
         20        SEND_VAR                                                 $8
         21        DO_ICALL                                                 
         22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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