Large Objects (LOBs)
PDO::beginTransaction
PDO
PHP Manual

# The PDO class

## Introduction

Represents a connection between PHP and a database server.

## Class synopsis

PDO
class PDO {
__construct ( string `$dsn` [, string `$username` [, string `$password` [, array `$driver_options` ]]] )
bool beginTransaction ( void )
bool commit ( void )
string errorCode ( void )
array errorInfo ( void )
int exec ( string `$statement` )
mixed getAttribute ( int `$attribute` )
array getAvailableDrivers ( void )
string lastInsertId ([ string `$name` ] )
PDOStatement prepare ( string `$statement` [, array `$driver_options` ] )
PDOStatement query ( string `$statement` )
string quote ( string `$string` [, int `$parameter_type` ] )
bool rollBack ( void )
bool setAttribute ( int `$attribute` , mixed `$value` )
}

## Table of Contents

- 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

Large Objects (LOBs)
PDO::beginTransaction
PDO
PHP Manual