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<?php $db = new PDO('sqlite::memory:', '', '', array(PDO::ATTR_PERSISTENT => true)); $db->beginTransaction(); $st = $db->query('select 1'); echo $st->fetchColumn()."\n"; $db->commit(); //$st = null; $db = new PDO('sqlite::memory:', '', '', array(PDO::ATTR_PERSISTENT => true)); $db->beginTransaction(); $st = $db->query('select 2'); echo $st->fetchColumn()."\n"; $db->commit();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iTsHt
function name:  (null)
number of ops:  39
compiled vars:  !0 = $db, !1 = $st
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'PDO'
          1        SEND_VAL_EX                                              'sqlite%3A%3Amemory%3A'
          2        SEND_VAL_EX                                              ''
          3        SEND_VAL_EX                                              ''
          4        SEND_VAL_EX                                              <array>
          5        DO_FCALL                                      0          
          6        ASSIGN                                                   !0, $2
    4     7        INIT_METHOD_CALL                                         !0, 'beginTransaction'
          8        DO_FCALL                                      0          
    5     9        INIT_METHOD_CALL                                         !0, 'query'
         10        SEND_VAL_EX                                              'select+1'
         11        DO_FCALL                                      0  $6      
         12        ASSIGN                                                   !1, $6
    6    13        INIT_METHOD_CALL                                         !1, 'fetchColumn'
         14        DO_FCALL                                      0  $8      
         15        CONCAT                                           ~9      $8, '%0A'
         16        ECHO                                                     ~9
    7    17        INIT_METHOD_CALL                                         !0, 'commit'
         18        DO_FCALL                                      0          
    9    19        NEW                                              $11     'PDO'
         20        SEND_VAL_EX                                              'sqlite%3A%3Amemory%3A'
         21        SEND_VAL_EX                                              ''
         22        SEND_VAL_EX                                              ''
         23        SEND_VAL_EX                                              <array>
         24        DO_FCALL                                      0          
         25        ASSIGN                                                   !0, $11
   10    26        INIT_METHOD_CALL                                         !0, 'beginTransaction'
         27        DO_FCALL                                      0          
   11    28        INIT_METHOD_CALL                                         !0, 'query'
         29        SEND_VAL_EX                                              'select+2'
         30        DO_FCALL                                      0  $15     
         31        ASSIGN                                                   !1, $15
   12    32        INIT_METHOD_CALL                                         !1, 'fetchColumn'
         33        DO_FCALL                                      0  $17     
         34        CONCAT                                           ~18     $17, '%0A'
         35        ECHO                                                     ~18
   13    36        INIT_METHOD_CALL                                         !0, 'commit'
         37        DO_FCALL                                      0          
         38      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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