The PDO class

(PHP 5 >= 5.1.0, PHP 7, PHP 8, PECL pdo >= 0.1.0)

Introduction

Represents a connection between PHP and a database server.

Class synopsis

classPDO {

publicconstintPARAM_NULL;

publicconstintPARAM_BOOL = 5;

publicconstintPARAM_INT = 1;

publicconstintPARAM_STR = 2;

publicconstintPARAM_LOB = 3;

publicconstintPARAM_STMT = 4;

publicconstintPARAM_INPUT_OUTPUT;

publicconstintPARAM_STR_NATL;

publicconstintPARAM_STR_CHAR;

publicconstintPARAM_EVT_ALLOC;

publicconstintPARAM_EVT_FREE;

publicconstintPARAM_EVT_EXEC_PRE;

publicconstintPARAM_EVT_EXEC_POST;

publicconstintPARAM_EVT_FETCH_PRE;

publicconstintPARAM_EVT_FETCH_POST;

publicconstintPARAM_EVT_NORMALIZE;

publicconstintFETCH_DEFAULT;

publicconstintFETCH_LAZY;

publicconstintFETCH_ASSOC;

publicconstintFETCH_NUM;

publicconstintFETCH_BOTH;

publicconstintFETCH_OBJ;

publicconstintFETCH_BOUND;

publicconstintFETCH_COLUMN;

publicconstintFETCH_CLASS;

publicconstintFETCH_INTO;

publicconstintFETCH_FUNC;

publicconstintFETCH_GROUP;

publicconstintFETCH_UNIQUE;

publicconstintFETCH_KEY_PAIR;

publicconstintFETCH_CLASSTYPE;

publicconstintFETCH_SERIALIZE;

publicconstintFETCH_PROPS_LATE;

publicconstintFETCH_NAMED;

publicconstintATTR_AUTOCOMMIT;

publicconstintATTR_PREFETCH;

publicconstintATTR_TIMEOUT;

publicconstintATTR_ERRMODE;

publicconstintATTR_SERVER_VERSION;

publicconstintATTR_CLIENT_VERSION;

publicconstintATTR_SERVER_INFO;

publicconstintATTR_CONNECTION_STATUS;

publicconstintATTR_CASE;

publicconstintATTR_CURSOR_NAME;

publicconstintATTR_CURSOR;

publicconstintATTR_ORACLE_NULLS;

publicconstintATTR_PERSISTENT;

publicconstintATTR_STATEMENT_CLASS;

publicconstintATTR_FETCH_TABLE_NAMES;

publicconstintATTR_FETCH_CATALOG_NAMES;

publicconstintATTR_DRIVER_NAME;

publicconstintATTR_STRINGIFY_FETCHES;

publicconstintATTR_MAX_COLUMN_LEN;

publicconstintATTR_EMULATE_PREPARES;

publicconstintATTR_DEFAULT_FETCH_MODE;

publicconstintATTR_DEFAULT_STR_PARAM;

publicconstintERRMODE_SILENT;

publicconstintERRMODE_WARNING;

publicconstintERRMODE_EXCEPTION;

publicconstintCASE_NATURAL;

publicconstintCASE_LOWER;

publicconstintCASE_UPPER;

publicconstintNULL_NATURAL;

publicconstintNULL_EMPTY_STRING;

publicconstintNULL_TO_STRING;

publicconststringERR_NONE;

publicconstintFETCH_ORI_NEXT;

publicconstintFETCH_ORI_PRIOR;

publicconstintFETCH_ORI_FIRST;

publicconstintFETCH_ORI_LAST;

publicconstintFETCH_ORI_ABS;

publicconstintFETCH_ORI_REL;

publicconstintCURSOR_FWDONLY;

publicconstintCURSOR_SCROLL;

public__construct(
    string$dsn,
    ?string$username = null,
    ?string$password = null,
    ?array$options = null
)

publicbeginTransaction(): bool

publiccommit(): bool

publicerrorCode(): ?string

publicerrorInfo(): array

publicexec(string$statement): int|false

publicgetAttribute(int$attribute): mixed

publicstaticgetAvailableDrivers(): array

publicinTransaction(): bool

publiclastInsertId(?string$name = null): string|false

publicprepare(string$query, array$options = []): PDOStatement|false

publicquery(string$query, ?int$fetchMode = null): PDOStatement|false

publicquery(string$query, ?int$fetchMode = PDO::FETCH_COLUMN, int$colno): PDOStatement|false

publicquery(
    string$query,
    ?int$fetchMode = PDO::FETCH_CLASS,
    string$classname,
    array$constructorArgs
): PDOStatement|false

publicquery(string$query, ?int$fetchMode = PDO::FETCH_INTO, object$object): PDOStatement|false

publicquote(string$string, int$type = PDO::PARAM_STR): string|false

publicrollBack(): bool

publicsetAttribute(int$attribute, mixed$value): bool

}

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::inTransaction — Checks if inside a transaction
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 — Prepares and executes an SQL statement without placeholders
PDO::quote — Quotes a string for use in a query
PDO::rollBack — Rolls back a transaction
PDO::setAttribute — Set an attribute

The PDO class

Introduction

Class synopsis

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