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<?php @unlink('a.db'); @unlink('b.db'); $a = new PDO('sqlite:a.db'); $b = new PDO('sqlite:b.db'); $a->query('CREATE TABLE a (i INTEGER)'); $b->query('CREATE TABLE b (i INTEGER)'); unset($a); unset($b); $a = new PDO('sqlite:a.db'); $a->query('ATTACH DATABASE \'b.db\' AS b'); var_dump($a->query('SELECT * FROM b.b'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nK9gq
function name:  (null)
number of ops:  40
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   BEGIN_SILENCE                                    ~2      
          1        INIT_FCALL                                               'unlink'
          2        SEND_VAL                                                 'a.db'
          3        DO_ICALL                                                 
          4        END_SILENCE                                              ~2
    4     5        BEGIN_SILENCE                                    ~4      
          6        INIT_FCALL                                               'unlink'
          7        SEND_VAL                                                 'b.db'
          8        DO_ICALL                                                 
          9        END_SILENCE                                              ~4
    6    10        NEW                                              $6      'PDO'
         11        SEND_VAL_EX                                              'sqlite%3Aa.db'
         12        DO_FCALL                                      0          
         13        ASSIGN                                                   !0, $6
    7    14        NEW                                              $9      'PDO'
         15        SEND_VAL_EX                                              'sqlite%3Ab.db'
         16        DO_FCALL                                      0          
         17        ASSIGN                                                   !1, $9
    9    18        INIT_METHOD_CALL                                         !0, 'query'
         19        SEND_VAL_EX                                              'CREATE+TABLE+a+%28i+INTEGER%29'
         20        DO_FCALL                                      0          
   10    21        INIT_METHOD_CALL                                         !1, 'query'
         22        SEND_VAL_EX                                              'CREATE+TABLE+b+%28i+INTEGER%29'
         23        DO_FCALL                                      0          
   12    24        UNSET_CV                                                 !0
   13    25        UNSET_CV                                                 !1
   15    26        NEW                                              $14     'PDO'
         27        SEND_VAL_EX                                              'sqlite%3Aa.db'
         28        DO_FCALL                                      0          
         29        ASSIGN                                                   !0, $14
   16    30        INIT_METHOD_CALL                                         !0, 'query'
         31        SEND_VAL_EX                                              'ATTACH+DATABASE+%27b.db%27+AS+b'
         32        DO_FCALL                                      0          
   17    33        INIT_FCALL                                               'var_dump'
         34        INIT_METHOD_CALL                                         !0, 'query'
         35        SEND_VAL_EX                                              'SELECT+%2A+FROM+b.b'
         36        DO_FCALL                                      0  $18     
         37        SEND_VAR                                                 $18
         38        DO_ICALL                                                 
         39      > RETURN                                                   1

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