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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Dbal;
use PhpMyAdmin\ConfigStorage\Relation;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\FieldMetadata;
use PhpMyAdmin\SystemDatabase;
use PhpMyAdmin\Table;
/**
* Main interface for database interactions
*/
interface DbalInterface
{
public const FETCH_NUM = 'NUM';
public const FETCH_ASSOC = 'ASSOC';
/**
* runs a query
*
* @param string $query SQL query to execute
* @param mixed $link optional database link to use
* @param int $options optional query options
* @param bool $cache_affected_rows whether to cache affected rows
*/
public function query(
string $query,
$link = DatabaseInterface::CONNECT_USER,
int $options = 0,
bool $cache_affected_rows = true
): ResultInterface;
/**
* runs a query and returns the result
*
* @param string $query query to run
* @param mixed $link link type
* @param int $options query options
* @param bool $cache_affected_rows whether to cache affected row
*
* @return mixed
*/
public function tryQuery(
string $query,
$link = DatabaseInterface::CONNECT_USER,
int $options = 0,
bool $cache_affected_rows = true
);
/**
* Send multiple SQL queries to the database server and execute the first one
*
* @param string $multiQuery multi query statement to execute
* @param int $linkIndex index of the opened database link
*/
public function tryMultiQuery(
string $multiQuery = '',
$linkIndex = DatabaseInterface::CONNECT_USER
): bool;
/**
* returns array with table names for given db
*
* @param string $database name of database
* @param mixed $link mysql link resource|object
*
* @return array tables names
*/
public function getTables(string $database, $link = DatabaseInterface::CONNECT_USER): array;
/**
* returns array of all tables in given db or dbs
* this function expects unquoted names:
* RIGHT: my_database
* WRONG: `my_database`
* WRONG: my\_database
* if $tbl_is_group is true, $table is used as filter for table names
*
* <code>
* $dbi->getTablesFull('my_database');
* $dbi->getTablesFull('my_database', 'my_table'));
* $dbi->getTablesFull('my_database', 'my_tables_', true));
* </code>
*
* @param string $database database
* @param string|array $table table name(s)
* @param bool $tbl_is_group $table is a table group
* @param int $limit_offset zero-based offset for the count
* @param bool|int $limit_count number of tables to return
* @param string $sort_by table attribute to sort by
* @param string $sort_order direction to sort (ASC or DESC)
* @param string|null $table_type whether table or view
* @param mixed $link link type
*
* @return array list of tables in given db(s)
*
* @todo move into Table
*/
public function getTablesFull(
string $database,
$table = '',
bool $tbl_is_group = false,
int $limit_offset = 0,
$limit_count = false,
string $sort_by = 'Name',
string $sort_order = 'ASC',
?string $table_type = null,
$link = DatabaseInterface::CONNECT_USER
): array;
/**
* Get VIEWs in a particular database
*
* @param string $db Database name to look in
*
* @return Table[] Set of VIEWs inside the database
*/
public function getVirtualTables(string $db): array;
/**
* returns array with databases containing extended infos about them
*
* @param string|null $database database
* @param bool $force_stats retrieve stats also for MySQL < 5
* @param int $link link type
* @param string $sort_by column to order by
* @param string $sort_order ASC or DESC
* @param int $limit_offset starting offset for LIMIT
* @param bool|int $limit_count row count for LIMIT or true
* for $GLOBALS['cfg']['MaxDbList']
*
* @return array
*
* @todo move into ListDatabase?
*/
public function getDatabasesFull(
?string $database = null,
bool $force_stats = false,
$link = DatabaseInterface::CONNECT_USER,
string $sort_by = 'SCHEMA_NAME',
string $sort_order = 'ASC',
int $limit_offset = 0,
$limit_count = false
): array;
/**
* returns detailed array with all columns for sql
*
* @param string $sql_query target SQL query to get columns
* @param array $view_columns alias for columns
*
* @return array
*/
public function getColumnMapFromSql(string $sql_query, array $view_columns = []): array;
/**
* returns detailed array with all columns for given table in database,
* or all tables/databases
*
* @param string|null $database name of database
* @param string|null $table name of table to retrieve columns from
* @param string|null $column name of specific column
* @param mixed $link mysql link resource
*
* @return array
*/
public function getColumnsFull(
?string $database = null,
?string $table = null,
?string $column = null,
$link = DatabaseInterface::CONNECT_USER
): array;
/**
* Returns description of a $column in given table
*
* @param string $database name of database
* @param string $table name of table to retrieve columns from
* @param string $column name of column
* @param bool $full whether to return full info or only column names
* @param int $link link type
*
* @return array flat array description
*/
public function getColumn(
string $database,
string $table,
string $column,
bool $full = false,
$link = DatabaseInterface::CONNECT_USER
): array;
/**
* Returns descriptions of columns in given table
*
* @param string $database name of database
* @param string $table name of table to retrieve columns from
* @param bool $full whether to return full info or only column names
* @param int $link link type
*
* @return array<string, array> array indexed by column names
*/
public function getColumns(
string $database,
string $table,
bool $full = false,
$link = DatabaseInterface::CONNECT_USER
): array;
/**
* Returns all column names in given table
*
* @param string $database name of database
* @param string $table name of table to retrieve columns from
* @param mixed $link mysql link resource
*
* @return string[]
*/
public function getColumnNames(
string $database,
string $table,
$link = DatabaseInterface::CONNECT_USER
): array;
/**
* Returns indexes of a table
*
* @param string $database name of database
* @param string $table name of the table whose indexes are to be retrieved
* @param mixed $link mysql link resource
*
* @return array
*/
public function getTableIndexes(
string $database,
string $table,
$link = DatabaseInterface::CONNECT_USER
): array;
/**
* returns value of given mysql server variable
*
* @param string $var mysql server variable name
* @param int $type DatabaseInterface::GETVAR_SESSION |
* DatabaseInterface::GETVAR_GLOBAL
* @param int $link mysql link resource|object
*
* @return false|string|null value for mysql server variable
*/
public function getVariable(
string $var,
int $type = DatabaseInterface::GETVAR_SESSION,
$link = DatabaseInterface::CONNECT_USER
);
/**
* Sets new value for a variable if it is different from the current value
*
* @param string $var variable name
* @param string $value value to set
* @param int $link mysql link resource|object
*/
public function setVariable(string $var, string $value, $link = DatabaseInterface::CONNECT_USER): bool;
/**
* Function called just after a connection to the MySQL database server has
* been established. It sets the connection collation, and determines the
* version of MySQL which is running.
*/
public function postConnect(): void;
/**
* Sets collation connection for user link
*
* @param string $collation collation to set
*/
public function setCollation(string $collation): void;
/**
* Function called just after a connection to the MySQL database server has
* been established. It sets the connection collation, and determines the
* version of MySQL which is running.
*/
public function postConnectControl(Relation $relation): void;
/**
* returns a single value from the given result or query,
* if the query or the result has more than one row or field
* the first field of the first row is returned
*
* <code>
* $sql = 'SELECT `name` FROM `user` WHERE `id` = 123';
* $user_name = $dbi->fetchValue($sql);
* // produces
* // $user_name = 'John Doe'
* </code>
*
* @param string $query The query to execute
* @param int|string $field field to fetch the value from,
* starting at 0, with 0 being
* default
* @param int $link link type
*
* @return string|false|null value of first field in first row from result
* or false if not found
*/
public function fetchValue(
string $query,
$field = 0,
$link = DatabaseInterface::CONNECT_USER
);
/**
* Returns only the first row from the result or null if result is empty.
*
* <code>
* $sql = 'SELECT * FROM `user` WHERE `id` = 123';
* $user = $dbi->fetchSingleRow($sql);
* // produces
* // $user = array('id' => 123, 'name' => 'John Doe')
* </code>
*
* @param string $query The query to execute
* @param string $type NUM|ASSOC returned array should either numeric
* associative or both
* @param int $link link type
* @psalm-param self::FETCH_NUM|self::FETCH_ASSOC $type
*/
public function fetchSingleRow(
string $query,
string $type = DbalInterface::FETCH_ASSOC,
$link = DatabaseInterface::CONNECT_USER
): ?array;
/**
* returns all rows in the resultset in one array
*
* <code>
* $sql = 'SELECT * FROM `user`';
* $users = $dbi->fetchResult($sql);
* // produces
* // $users[] = array('id' => 123, 'name' => 'John Doe')
*
* $sql = 'SELECT `id`, `name` FROM `user`';
* $users = $dbi->fetchResult($sql, 'id');
* // produces
* // $users['123'] = array('id' => 123, 'name' => 'John Doe')
*
* $sql = 'SELECT `id`, `name` FROM `user`';
* $users = $dbi->fetchResult($sql, 0);
* // produces
* // $users['123'] = array(0 => 123, 1 => 'John Doe')
*
* $sql = 'SELECT `id`, `name` FROM `user`';
* $users = $dbi->fetchResult($sql, 'id', 'name');
* // or
* $users = $dbi->fetchResult($sql, 0, 1);
* // produces
* // $users['123'] = 'John Doe'
*
* $sql = 'SELECT `name` FROM `user`';
* $users = $dbi->fetchResult($sql);
* // produces
* // $users[] = 'John Doe'
*
* $sql = 'SELECT `group`, `name` FROM `user`'
* $users = $dbi->fetchResult($sql, array('group', null), 'name');
* // produces
* // $users['admin'][] = 'John Doe'
*
* $sql = 'SELECT `group`, `name` FROM `user`'
* $users = $dbi->fetchResult($sql, array('group', 'name'), 'id');
* // produces
* // $users['admin']['John Doe'] = '123'
* </code>
*
* @param string $query query to execute
* @param string|int|array $key field-name or offset
* used as key for
* array or array of
* those
* @param string|int $value value-name or offset
* used as value for
* array
* @param int $link link type
*
* @return array resultrows or values indexed by $key
*/
public function fetchResult(
string $query,
$key = null,
$value = null,
$link = DatabaseInterface::CONNECT_USER
): array;
/**
* Get supported SQL compatibility modes
*
* @return array supported SQL compatibility modes
*/
public function getCompatibilities(): array;
/**
* returns warnings for last query
*
* @param int $link link type
*
* @return array warnings
*/
public function getWarnings($link = DatabaseInterface::CONNECT_USER): array;
/**
* returns an array of PROCEDURE or FUNCTION names for a db
*
* @param string $db db name
* @param string $which PROCEDURE | FUNCTION
* @param int $link link type
*
* @return array the procedure names or function names
*/
public function getProceduresOrFunctions(
string $db,
string $which,
$link = DatabaseInterface::CONNECT_USER
): array;
/**
* returns the definition of a specific PROCEDURE, FUNCTION, EVENT or VIEW
*
* @param string $db db name
* @param string $which PROCEDURE | FUNCTION | EVENT | VIEW
* @param string $name the procedure|function|event|view name
* @param int $link link type
*
* @return string|null the definition
*/
public function getDefinition(
string $db,
string $which,
string $name,
$link = DatabaseInterface::CONNECT_USER
): ?string;
/**
* returns details about the PROCEDUREs or FUNCTIONs for a specific database
* or details about a specific routine
*
* @param string $db db name
* @param string|null $which PROCEDURE | FUNCTION or null for both
* @param string $name name of the routine (to fetch a specific routine)
*
* @return array information about ROCEDUREs or FUNCTIONs
*/
public function getRoutines(string $db, ?string $which = null, string $name = ''): array;
/**
* returns details about the EVENTs for a specific database
*
* @param string $db db name
* @param string $name event name
*
* @return array information about EVENTs
*/
public function getEvents(string $db, string $name = ''): array;
/**
* returns details about the TRIGGERs for a specific table or database
*
* @param string $db db name
* @param string $table table name
* @param string $delimiter the delimiter to use (may be empty)
*
* @return array information about triggers (may be empty)
*/
public function getTriggers(string $db, string $table = '', string $delimiter = '//'): array;
/**
* gets the current user with host
*
* @return string the current user i.e. user@host
*/
public function getCurrentUser(): string;
/**
* Checks if current user is superuser
*/
public function isSuperUser(): bool;
public function isGrantUser(): bool;
public function isCreateUser(): bool;
public function isConnected(): bool;
/**
* Get the current user and host
*
* @return array array of username and hostname
*/
public function getCurrentUserAndHost(): array;
/**
* Returns value for lower_case_table_names variable
*
* @return string
*/
public function getLowerCaseNames();
/**
* connects to the database server
*
* @param int $mode Connection mode on of CONNECT_USER, CONNECT_CONTROL
* or CONNECT_AUXILIARY.
* @param array|null $server Server information like host/port/socket/persistent
* @param int|null $target How to store connection link, defaults to $mode
*
* @return mixed false on error or a connection object on success
*/
public function connect(int $mode, ?array $server = null, ?int $target = null);
/**
* selects given database
*
* @param string|DatabaseName $dbname database name to select
* @param int $link link type
*/
public function selectDb($dbname, $link = DatabaseInterface::CONNECT_USER): bool;
/**
* Check if there are any more query results from a multi query
*
* @param int $link link type
*/
public function moreResults($link = DatabaseInterface::CONNECT_USER): bool;
/**
* Prepare next result from multi_query
*
* @param int $link link type
*/
public function nextResult($link = DatabaseInterface::CONNECT_USER): bool;
/**
* Store the result returned from multi query
*
* @param int $link link type
*
* @return mixed false when empty results / result set when not empty
*/
public function storeResult($link = DatabaseInterface::CONNECT_USER);
/**
* Returns a string representing the type of connection used
*
* @param int $link link type
*
* @return string|bool type of connection used
*/
public function getHostInfo($link = DatabaseInterface::CONNECT_USER);
/**
* Returns the version of the MySQL protocol used
*
* @param int $link link type
*
* @return int|bool version of the MySQL protocol used
*/
public function getProtoInfo($link = DatabaseInterface::CONNECT_USER);
/**
* returns a string that represents the client library version
*
* @return string MySQL client library version
*/
public function getClientInfo(): string;
/**
* Returns last error message or an empty string if no errors occurred.
*
* @param int $link link type
*/
public function getError($link = DatabaseInterface::CONNECT_USER): string;
/**
* returns the number of rows returned by last query
* used with tryQuery as it accepts false
*
* @param string $query query to run
*
* @return string|int
* @psalm-return int|numeric-string
*/
public function queryAndGetNumRows(string $query);
/**
* returns last inserted auto_increment id for given $link
* or $GLOBALS['userlink']
*
* @param int $link link type
*
* @return int
*/
public function insertId($link = DatabaseInterface::CONNECT_USER);
/**
* returns the number of rows affected by last query
*
* @param int $link link type
* @param bool $get_from_cache whether to retrieve from cache
*
* @return int|string
* @psalm-return int|numeric-string
*/
public function affectedRows($link = DatabaseInterface::CONNECT_USER, bool $get_from_cache = true);
/**
* returns metainfo for fields in $result
*
* @param ResultInterface $result result set identifier
*
* @return FieldMetadata[] meta info for fields in $result
*/
public function getFieldsMeta(ResultInterface $result): array;
/**
* returns properly escaped string for use in MySQL queries
*
* @param string $str string to be escaped
* @param mixed $link optional database link to use
*
* @return string a MySQL escaped string
*/
public function escapeString(string $str, $link = DatabaseInterface::CONNECT_USER);
/**
* returns properly escaped string for use in MySQL LIKE clauses
*
* @param string $str string to be escaped
* @param int $link optional database link to use
*
* @return string a MySQL escaped LIKE string
*/
public function escapeMysqlLikeString(string $str, int $link = DatabaseInterface::CONNECT_USER);
/**
* Checks if this database server is running on Amazon RDS.
*/
public function isAmazonRds(): bool;
/**
* Gets SQL for killing a process.
*
* @param int $process Process ID
*/
public function getKillQuery(int $process): string;
/**
* Get the phpmyadmin database manager
*/
public function getSystemDatabase(): SystemDatabase;
/**
* Get a table with database name and table name
*
* @param string $db_name DB name
* @param string $table_name Table name
*/
public function getTable(string $db_name, string $table_name): Table;
/**
* returns collation of given db
*
* @param string $db name of db
*
* @return string collation of $db
*/
public function getDbCollation(string $db): string;
/**
* returns default server collation from show variables
*/
public function getServerCollation(): string;
/**
* Server version as number
*/
public function getVersion(): int;
/**
* Server version
*/
public function getVersionString(): string;
/**
* Server version comment
*/
public function getVersionComment(): string;
/**
* Whether connection is MariaDB
*/
public function isMariaDB(): bool;
/**
* Whether connection is Percona
*/
public function isPercona(): bool;
/**
* Prepare an SQL statement for execution.
*
* @param string $query The query, as a string.
* @param int $link Link type.
*
* @return object|false A statement object or false.
*/
public function prepare(string $query, $link = DatabaseInterface::CONNECT_USER);
}