Last updated: Fri, 05 Sep 2008

The PDO class

Introduction

Represents a connection between PHP and a database server.

Class synopsis

PDO

PDO {

PDO::__construct ( string $dsn [, string $username [, string $password [, array $driver_options ]]] )

bool PDO::beginTransaction ( void )

bool PDO::commit ( void )

string PDO::errorCode ( void )

array PDO::errorInfo ( void )

int PDO::exec ( string $statement )

mixed PDO::getAttribute ( int $attribute )

array PDO::getAvailableDrivers ( void )

string PDO::lastInsertId ([ string $name ] )

PDOStatement PDO::prepare ( string $statement [, array $driver_options ] )

PDOStatement PDO::query ( string $statement )

string PDO::quote ( string $string [, int $parameter_type ] )

bool PDO::rollBack ( void )

bool PDO::setAttribute ( int $attribute , mixed $value )

}

PDO::beginTransaction — Initiates a transaction
PDO::commit — Commits a transaction
PDO::__construct — Creates a PDO instance representing a connection to a database
PDO::errorCode — Fetch the SQLSTATE associated with the last operation on the database handle
PDO::errorInfo — Fetch extended error information associated with the last operation on the database handle
PDO::exec — Execute an SQL statement and return the number of affected rows
PDO::getAttribute — Retrieve a database connection attribute
PDO::getAvailableDrivers — Return an array of available PDO drivers
PDO::lastInsertId — Returns the ID of the last inserted row or sequence value
PDO::prepare — Prepares a statement for execution and returns a statement object
PDO::query — Executes an SQL statement, returning a result set as a PDOStatement object
PDO::quote — Quotes a string for use in a query.
PDO::rollBack — Rolls back a transaction
PDO::setAttribute — Set an attribute

add a note User Contributed Notes
PDO

anrdaemon at freemail dot ru
22-Aug-2008 04:16


Keep in mind, you MUST NOT use 'root' user in your applications, unless your application designed to do a database maintenance.



And storing username/password inside class is not a very good idea for production code. You would need to edit the actual working code to change settings, which is bad.

schizo_mind at hotmail dot com
28-Jul-2008 01:00


<?php


class PDOConfig extends PDO {


    


    private $engine;


    private $host;


    private $database;


    private $user;


    private $pass;


    


    public function __construct(){


        $this->engine = 'mysql';


        $this->host = 'localhost';


        $this->database = '';


        $this->user = 'root';


        $this->pass = '';


        $dns = $this->engine.':dbname='.$this->database.";host=".$this->host;


        parent::__construct( $dns, $this->user, $this->pass );


    }


}


?>

add a note

PDO::beginTransaction

Large Objects (LOBs)

Last updated: Fri, 05 Sep 2008

The PDO class

Introduction

Class synopsis

Table of Contents