PDO? ???? MySQL? ??: ?? ???
??
???? PHP ??? ???? MySQL ??????? ?? ???? ??? ???? ?? ??????. ? ???? PDO ??? ???? ???? ???? ???? ?????? ???? ???? ??? ?? ???? ??? ?????.
1??: PDO ??? ??
??? ??? ????? ??? ?????. PDO ???? ?????. ? ??? ???? ?? ???? ?????? ??? ???? ???? ? ????.
class connect_pdo
{
protected $dbh;
public function __construct()
{
// Configure and establish the PDO connection
...
}
public function dbh()
{
return $this->dbh;
}
}
2??: ?? ???
??? ?? ??? connect_pdo ???? ????? ???? ?? ??? ?????.
$con = new connect_pdo(); $con = $con->dbh();
3??: ?????? ?? ??
SQL ??? ???? ?? ??? ?? ???? ?????? ??? ?????.
$sql = 'SELECT * FROM `table` WHERE `id` = :id';
$qry = $con->prepare($sql);
$qry->bindParam(':id', $id, PDO::PARAM_INT);
$qry->execute();
4??: ?? ??
?? ?????? ?? ?? ?? ??? ???? ???? ?? ?? ??? ?????. .
5??: PDO ?? ??
PDO ?? ?? ??? ??? ??????.
$db_host = ...; // hostname
$db_name = ...; // database name
$db_user = ...; // username
$user_pw = ...; // password
$con = new PDO('mysql:host='.$db_host.'; dbname='.$db_name, $db_user, $user_pw);
$con->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$con->setAttribute( PDO::ATTR_EMULATE_PREPARES, false );
$con->exec("SET CHARACTER SET utf8"); // return all SQL requests as UTF-8
6??: ??? ?? ? ??? ??
?? ???? ?????? ??? ????? ??? ??? ???? ?? ?????. ?? PDO ????? ???? ???? ??? ??? ??? ? ????.
??
??? ??? ??? ?? ??? ???? ???? ???? PDO ??? ????? ??? ? ????. MySQL ??????. ?? ?? ??? ?????? ???? ???? PHP ??????? ???? ?????.
? ??? PHP? PDO? ???? MySQL? ???? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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