试试这个: 你失踪的$ _SESSION [USER_ID]和报价参数在 - > fetch($参数); 使用PDO时,您前人的精力用一个尝试捕捉,所以如果你有一个错误,你就会知道为什么连接使用PDO的
class Content {
public function __construct() {
public $db = new PDO("mysql:host=localhost;dbname=XXXX;
charset=utf8", "XXXX", "XXXX");
$db->exec('SET NAMES `UTF-8`');
if (isset($_SESSION['user_id'])){
$userId=$_SESSION['user_id'];
$query = $db->query("SELECT count(id),name FROM members
WHERE id = $userId LIMIT 1")->fetch(PDO::FETCH_ASSOC);
}
}
public function WriteContent() {
$news = $db->query("SELECT * FROM news ORDER BY id DESC LIMIT 1")->fetch(PDO::FETCH_ASSOC);
echo 'hi'.$query[name].'<br/><br/>'.$news[headline].'<br/>'.$news[detail];
}
}
例和OOP
class Connection{
protected $con; //connection variable
public function Conexion(){
try{
$this->con=new PDO("mysql:host=localhost;dbname=Youtube","root","");
$this->con->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
$this->con->exec("SET CHARACTER SET UTF8");
return $this->con;
}
catch (PDOException $e){
echo "Error: " . $e->getMessage() . "<br />Line: " . $e->getLine();
}
}
}
每当你需要连接你会时间必须要求('connetion.php'); 并在其他类中使用它:
Class ViewDataBaseResults extends Connection{
public function ViewDataBaseResults(){
parent::__construct(); //You inherit the construct here
}
public function view(){
$result=$this->con->query("SELECT * FROM TABLE"); //
if($array=$result->fetch(PDO::FETCH_ASSOC));{
echo "Hi: " . $array['name'] . "<br />";
}
}
}
什么错误的PHP显示? –
空白页:S @Gerald Chablowski – orhuncan
您可以不使用注入而不是在您的contrsucter上调用pdo。此外,你应该使用新的\ Pdo(),就像它指的是JavaScript的名字空间。 –