不要重新連接控制器調用數據庫

Question

我的控制器調用請求數據庫並返回結果的方法。

$connect = $this->connectBDD(); 

$rq = "SELECT naf, libelle FROM mytable WHERE naf ILIKE '$txt%'"; 
$t = $connect->prepare($rq); $t->execute(); 
$t->setFetchMode(\PDO::FETCH_OBJ); 

$tab = array(); 
while($top = $t->fetch()) { 
    $tab[] = array(
     "text" => $top->naf . ": " . $top->libelle, 
     "value" => $top->naf 
    ); 
} 

$t->closeCursor(); 

return $tab; 

問題來自第一行$ connect = $ this-> connectBDD（）;誰打開連接。它需要時間，約1次，而且由於這個方法經常被調用（自動完成系統），所以我需要記住連接在每次調用時不重新連接。

我試圖記住在會話

if(null === $this->app['session']->get('ac')) { 
    $this->app['session']->set('ac', $this->connectBDD()); 
} 

$connect = $this->app['session']->get('ac'); 


$rq = "SELECT naf, libelle FROM mytable WHERE naf ILIKE '$txt%'"; 
$t = $connect->prepare($rq); $t->execute(); 
$t->setFetchMode(\PDO::FETCH_OBJ); 

$tab = array(); 
while($top = $t->fetch()) { 
    $tab[] = array(
     "text" => $top->naf . ": " . $top->libelle, 
     "value" => $top->naf 
    ); 
} 

$t->closeCursor(); 

return $tab; 

$連接，但它更糟糕的是，因爲如果我有一個無限循環......

所以，我怎麼能叫我的方法，無需重新連接數據庫在每次打電話？

感謝您的幫助

Answer 1

試圖在connectBDD

$dbh = new PDO('....', $user, $pass, array(
    PDO::ATTR_PERSISTENT => true 
)); 

http://php.net/manual/en/pdo.connections.php