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<?php function getSocialUser( $uri ) { $parsed = parse_url( $uri ); $path = $parsed[ 'path' ];// Usuário, mas com alguns caracteres que devem ser filtrados $host = str_replace( 'www.', '', $parsed[ 'host' ] );// Retiramos o 'www.' $host_name = explode( '.', $host )[ 0 ];// Separamos pelo '.' e pegamos a primeira parte $allowed_hosts = [ 'twitter', 'facebook', 'instagram' ];// Hosts permitidos if ( !in_array( $host_name, $allowed_hosts ) ) return false;// Se não estiver entre os permitidos, retorne falso (ou exception) return strtok( ltrim( $path, '/' ), '/' ); } $url1 = 'https://www.facebook.com/gilberto.gil'; $url2 = 'http://instagram.com/gilberto.gil/posts'; $url3 = 'https://twitter.com/gilberto.gil?parametro_qualquer=123'; $url4 = 'https://google.com/gilberto.gil?parametro_qualquer=123'; echo ( getSocialUser( $url1 ) ?: 'Inválido' ) . "\n"; echo ( getSocialUser( $url2 ) ?: 'Inválido' ) . "\n"; echo ( getSocialUser( $url3 ) ?: 'Inválido' ) . "\n"; echo ( getSocialUser( $url4 ) ?: 'Inválido' ) . "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Uib0j
function name:  (null)
number of ops:  33
compiled vars:  !0 = $url1, !1 = $url2, !2 = $url3, !3 = $url4
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   16     0  E >   ASSIGN                                                       !0, 'https%3A%2F%2Fwww.facebook.com%2Fgilberto.gil'
   17     1        ASSIGN                                                       !1, 'http%3A%2F%2Finstagram.com%2Fgilberto.gil%2Fposts'
   18     2        ASSIGN                                                       !2, 'https%3A%2F%2Ftwitter.com%2Fgilberto.gil%3Fparametro_qualquer%3D123'
   19     3        ASSIGN                                                       !3, 'https%3A%2F%2Fgoogle.com%2Fgilberto.gil%3Fparametro_qualquer%3D123'
   21     4        INIT_FCALL                                                   'getsocialuser'
          5        SEND_VAR                                                     !0
          6        DO_FCALL                                          0  $8      
          7        JMP_SET                                              ~9      $8, ->9
          8        QM_ASSIGN                                            ~9      'Inv%C3%A1lido'
          9        CONCAT                                               ~10     ~9, '%0A'
         10        ECHO                                                         ~10
   22    11        INIT_FCALL                                                   'getsocialuser'
         12        SEND_VAR                                                     !1
         13        DO_FCALL                                          0  $11     
         14        JMP_SET                                              ~12     $11, ->16
         15        QM_ASSIGN                                            ~12     'Inv%C3%A1lido'
         16        CONCAT                                               ~13     ~12, '%0A'
         17        ECHO                                                         ~13
   23    18        INIT_FCALL                                                   'getsocialuser'
         19        SEND_VAR                                                     !2
         20        DO_FCALL                                          0  $14     
         21        JMP_SET                                              ~15     $14, ->23
         22        QM_ASSIGN                                            ~15     'Inv%C3%A1lido'
         23        CONCAT                                               ~16     ~15, '%0A'
         24        ECHO                                                         ~16
   24    25        INIT_FCALL                                                   'getsocialuser'
         26        SEND_VAR                                                     !3
         27        DO_FCALL                                          0  $17     
         28        JMP_SET                                              ~18     $17, ->30
         29        QM_ASSIGN                                            ~18     'Inv%C3%A1lido'
         30        CONCAT                                               ~19     ~18, '%0A'
         31        ECHO                                                         ~19
         32      > RETURN                                                       1

Function getsocialuser:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 21, Position 2 = 22
Branch analysis from position: 21
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 22
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Uib0j
function name:  getSocialUser
number of ops:  32
compiled vars:  !0 = $uri, !1 = $parsed, !2 = $path, !3 = $host, !4 = $host_name, !5 = $allowed_hosts
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   RECV                                                 !0      
    3     1        INIT_FCALL                                                   'parse_url'
          2        SEND_VAR                                                     !0
          3        DO_ICALL                                             $6      
          4        ASSIGN                                                       !1, $6
    4     5        FETCH_DIM_R                                          ~8      !1, 'path'
          6        ASSIGN                                                       !2, ~8
    6     7        FETCH_DIM_R                                          ~10     !1, 'host'
          8        FRAMELESS_ICALL_3                str_replace         ~11     'www.', ''
          9        OP_DATA                                                      ~10
         10        ASSIGN                                                       !3, ~11
    7    11        INIT_FCALL                                                   'explode'
         12        SEND_VAL                                                     '.'
         13        SEND_VAR                                                     !3
         14        DO_ICALL                                             $13     
         15        FETCH_DIM_R                                          ~14     $13, 0
         16        ASSIGN                                                       !4, ~14
    9    17        ASSIGN                                                       !5, <array>
   10    18        FRAMELESS_ICALL_2                in_array            ~17     !4, !5
         19        BOOL_NOT                                             ~18     ~17
         20      > JMPZ                                                         ~18, ->22
   11    21    > > RETURN                                                       <false>
   13    22    >   INIT_FCALL                                                   'strtok'
         23        INIT_FCALL                                                   'ltrim'
         24        SEND_VAR                                                     !2
         25        SEND_VAL                                                     '%2F'
         26        DO_ICALL                                             $19     
         27        SEND_VAR                                                     $19
         28        SEND_VAL                                                     '%2F'
         29        DO_ICALL                                             $20     
         30      > RETURN                                                       $20
   14    31*     > RETURN                                                       null

End of function getsocialuser

Generated using Vulcan Logic Dumper, using php 8.5.0


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