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<?php var_dump(filter_var('example.com', FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_OPTIONAL)); var_dump(filter_var('//example.com', FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQUIRED)); var_dump(filter_var('/index.php', FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_OPTIONAL|FILTER_FLAG_HOST_OPTIONAL)); var_dump(filter_var('/index.php', FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQUIRED|FILTER_FLAG_HOST_REQUIRED));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5YHJH
function name:  (null)
number of ops:  41
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'filter_var'
          2        SEND_VAL                                                 'example.com'
          3        SEND_VAL                                                 273
          4        FETCH_CONSTANT                                   ~0      'FILTER_FLAG_SCHEME_OPTIONAL'
          5        SEND_VAL                                                 ~0
          6        DO_ICALL                                         $1      
          7        SEND_VAR                                                 $1
          8        DO_ICALL                                                 
    4     9        INIT_FCALL                                               'var_dump'
         10        INIT_FCALL                                               'filter_var'
         11        SEND_VAL                                                 '%2F%2Fexample.com'
         12        SEND_VAL                                                 273
         13        FETCH_CONSTANT                                   ~3      'FILTER_FLAG_SCHEME_REQUIRED'
         14        SEND_VAL                                                 ~3
         15        DO_ICALL                                         $4      
         16        SEND_VAR                                                 $4
         17        DO_ICALL                                                 
    5    18        INIT_FCALL                                               'var_dump'
         19        INIT_FCALL                                               'filter_var'
         20        SEND_VAL                                                 '%2Findex.php'
         21        SEND_VAL                                                 273
         22        FETCH_CONSTANT                                   ~6      'FILTER_FLAG_SCHEME_OPTIONAL'
         23        FETCH_CONSTANT                                   ~7      'FILTER_FLAG_HOST_OPTIONAL'
         24        BW_OR                                            ~8      ~6, ~7
         25        SEND_VAL                                                 ~8
         26        DO_ICALL                                         $9      
         27        SEND_VAR                                                 $9
         28        DO_ICALL                                                 
    6    29        INIT_FCALL                                               'var_dump'
         30        INIT_FCALL                                               'filter_var'
         31        SEND_VAL                                                 '%2Findex.php'
         32        SEND_VAL                                                 273
         33        FETCH_CONSTANT                                   ~11     'FILTER_FLAG_SCHEME_REQUIRED'
         34        FETCH_CONSTANT                                   ~12     'FILTER_FLAG_HOST_REQUIRED'
         35        BW_OR                                            ~13     ~11, ~12
         36        SEND_VAL                                                 ~13
         37        DO_ICALL                                         $14     
         38        SEND_VAR                                                 $14
         39        DO_ICALL                                                 
         40      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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