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<?php $subject = <<<EOL 1. first 2. second 3. third EOL; preg_match('/^.{1,20}?$/i', $subject, $matches); var_dump($matches); $subject = "qasd\nasdasd\nasda"; preg_match('/^.{1,20}?$/im', $subject, $matches); var_dump($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4J4A1
function name:  (null)
number of ops:  19
compiled vars:  !0 = $subject, !1 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '1.+first%0A2.+second%0A3.+third'
    9     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E.%7B1%2C20%7D%3F%24%2Fi'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
   10     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
   11     9        ASSIGN                                                   !0, 'qasd%0Aasdasd%0Aasda'
   12    10        INIT_FCALL                                               'preg_match'
         11        SEND_VAL                                                 '%2F%5E.%7B1%2C20%7D%3F%24%2Fim'
         12        SEND_VAR                                                 !0
         13        SEND_REF                                                 !1
         14        DO_ICALL                                                 
   13    15        INIT_FCALL                                               'var_dump'
         16        SEND_VAR                                                 !1
         17        DO_ICALL                                                 
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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