--TEST--
Checks that calling query() after beginTransaction() with an invalid query does not cause a crash. Fix for Github 434.
--DESCRIPTION--
Calling beginTransaction() and then query() with an invalid query can cause a crash in php.exe or php-cgi.exe,
which may manifest as a CLI crash or produce an error message saying "Faulting Module[...]odbc32.dll". The
cause is an attempt to double free a statement handle after script execution which had not been properly freed
during rollback. This test tells us nothing under run-tests.php because the crash only occurs at the end of
script execution, so any expected output already exists and the test would pass. Therefore manual verification
is necessary - this test should be run separately to verify no crash occurs.
--SKIPIF--
<?php require('skipif.inc'); ?>
--FILE--
<?php
    require_once("MsSetup.inc");

    $conn = new PDO("sqlsrv:Server=$server; database = $databaseName", $uid, $pwd);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);

    for ($i = 0; $i < 50; $i++) {
        echo "Iteration $i\n";
        if ($conn->beginTransaction()) {
            $stmt = $conn->query('SELECT fakecolumn FROM faketable');
        }
        $conn->commit();
    }
    
    $conn = null;
    
    echo "Done.\n";
?>
--EXPECT--
Iteration 0
Iteration 1
Iteration 2
Iteration 3
Iteration 4
Iteration 5
Iteration 6
Iteration 7
Iteration 8
Iteration 9
Iteration 10
Iteration 11
Iteration 12
Iteration 13
Iteration 14
Iteration 15
Iteration 16
Iteration 17
Iteration 18
Iteration 19
Iteration 20
Iteration 21
Iteration 22
Iteration 23
Iteration 24
Iteration 25
Iteration 26
Iteration 27
Iteration 28
Iteration 29
Iteration 30
Iteration 31
Iteration 32
Iteration 33
Iteration 34
Iteration 35
Iteration 36
Iteration 37
Iteration 38
Iteration 39
Iteration 40
Iteration 41
Iteration 42
Iteration 43
Iteration 44
Iteration 45
Iteration 46
Iteration 47
Iteration 48
Iteration 49
Done.