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<?php $file = 'http://simon.bennett.im'; if (preg_match('~^(?:f|ht)tps?://~i', substr($file, 0, 10))) { echo 'yes'; } else { echo 'no'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 14
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5qqEl
function name:  (null)
number of ops:  15
compiled vars:  !0 = $file
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'http%3A%2F%2Fsimon.bennett.im'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%7E%5E%28%3F%3Af%7Cht%29tps%3F%3A%2F%2F%7Ei'
          3        INIT_FCALL                                               'substr'
          4        SEND_VAR                                                 !0
          5        SEND_VAL                                                 0
          6        SEND_VAL                                                 10
          7        DO_ICALL                                         $2      
          8        SEND_VAR                                                 $2
          9        DO_ICALL                                         $3      
         10      > JMPZ                                                     $3, ->13
    4    11    >   ECHO                                                     'yes'
         12      > JMP                                                      ->14
    7    13    >   ECHO                                                     'no'
    8    14    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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