Fixed emulate prepare test to run with always encrypted enabled (#1336)

test/functional/pdo_sqlsrv/pdo_140_emulate_prepare_pos_placehodlers.phpt

@@ -41,23 +41,29 @@ EOF;
 
     $st->execute();
 
-    $data = selectAll($cnn, $tbname);
-    var_dump($data);
-
-    $system_param = 'another string';
+    $system_param2 = 'another string';
     $utf8_param = 'Привет';
     $binary_param = fopen('php://memory', 'a');
     fwrite($binary_param, hex2bin('80838790a9'));   // testing some extended characters
     rewind($binary_param);
 
-    $st->bindParam(1, $system_param, PDO::PARAM_STR);
+    $st->bindParam(1, $system_param2, PDO::PARAM_STR);
     $st->bindParam(2, $utf8_param, PDO::PARAM_STR, 0, PDO::SQLSRV_ENCODING_UTF8);
     $st->bindParam(3, $binary_param, PDO::PARAM_LOB, 0, PDO::SQLSRV_ENCODING_BINARY);
 
     $st->execute();
 
-    $sql = "SELECT * FROM $tbname WHERE system_encoding = 'another string'";
-    $st = $cnn->query($sql);
+    $select = "SELECT * FROM $tbname WHERE system_encoding = ?";
+    $st = $cnn->prepare($select);
+    $st->bindParam(1, $system_param);
+    $st->execute();
+
+    $data = $st->fetchAll(PDO::FETCH_BOTH);
+    var_dump($data);
+
+    $st->bindParam(1, $system_param2);
+    $st->execute();
+
     $st->bindColumn('utf8_encoding', $param2);
     $st->bindColumn('binary_encoding', $param3);
     $row = $st->fetch(PDO::FETCH_BOUND);