PDO

Trait providing base PDO operations for relational database drivers.

trait PDO

Includes methods for executing queries, preparing statements, quoting values, managing attributes, and handling connection state.

Properties

pdo

The underlying PDO instance used for database operations.

protected \PDO $pdo

Type: PDO

lastQueryString

Stores the last SQL query string executed or prepared.

private string $lastQueryString

Type: string

Methods

exec

Executes an SQL statement and returns the number of affected rows or false on failure.

public exec(string $sql): false|int

Returns: false|int

Parameters

Parameter	Type	Description
$sql	string	the SQL statement to execute

prepare

Prepares an SQL statement for execution.

public prepare(string $sql): false|Statement

Returns: false|Hazaar\DBI\Statement

Parameters

Parameter	Type	Description
$sql	string	the SQL statement to prepare

prepareQuery

Prepares a query using a QueryBuilder instance and sets the last query string.

public prepareQuery(QueryBuilder $queryBuilder): false|Statement

Returns: false|Hazaar\DBI\Statement

Parameters

Parameter	Type	Description
$queryBuilder	Hazaar\DBI\Interface\QueryBuilder	the query builder instance

lastQueryString

Returns the last SQL query string executed or prepared.

public lastQueryString(): string

Returns: string

query

public query(string $sql, array $parameters): false|Result

Returns: false|Hazaar\DBI\Result

Parameters

Parameter	Type	Description
$sql	string
$parameters	array

quote

Quotes a string for use in an SQL statement, using the current PDO connection.

public quote(string $string, int $type = '\PDO::PARAM_STR'): false|string

Returns: false|string

Parameters

Parameter	Type	Description
$string	string	the string to quote
$type	int	the data type for parameter binding (default: \PDO::PARAM_STR)

setTimezone

Sets the timezone for the database connection. (Not implemented for PDO.).

public setTimezone(string $tz): bool

Returns: bool

Parameters

Parameter	Type	Description
$tz	string	the timezone identifier

lastInsertId

Returns the ID of the last inserted row.

public lastInsertId(): string

Returns: string

getAttribute

Retrieves the value of a PDO attribute.

public getAttribute(int $attribute): mixed

Returns: mixed

Parameters

Parameter	Type	Description
$attribute	int	the attribute identifier

setAttribute

Sets the value of a PDO attribute.

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

Returns: bool

Parameters

Parameter	Type	Description
$attribute	int	the attribute identifier
$value	mixed	the value to set for the attribute

errorInfo

public errorInfo(): array

Returns: array

errorCode

Returns the error code for the last PDO operation.

public errorCode(): string

Returns: string

connect

protected connect(string $dsn, ?string $username, ?string $password, ?array $driverOptions): bool

Returns: bool

Parameters

Parameter	Type	Description
$dsn	string
$username	string
$password	string
$driverOptions	array

mkdsn

protected mkdsn(array $config): false|string

Returns: false|string

Parameters

Parameter	Type	Description
$config	array

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