Class JDatabaseDriverMysqli

MySQLi database driver

JDatabase

JDatabaseDriver implements JDatabaseInterface

JDatabaseDriverMysqli

Direct known subclasses

JDatabaseDriverMysql, JDatabaseMysqli

Indirect known subclasses

JDatabaseMysql

Package: Joomla\Platform\Database
Copyright: Copyright (C) 2005 - 2017 Open Source Matters, Inc. All rights reserved.
License: General Public License version 2 or later; see LICENSE
Since: 12.1
Link: https://secure.php.net/manual/en/book.mysqli.php
Located at joomla/database/driver/mysqli.php

Methods summary

`public`	# `__construct( array $options )` Constructor. Constructor. Parameters `$options` `array` - $options List of options used to configure the connection Since 12.1 Overrides `JDatabaseDriver::__construct`
`public`	# `__destruct( )` Destructor. Destructor. Since 12.1
`public`	# `connect( )` Connects to the database if needed. Connects to the database if needed. Returns - Returns void if the database connected successfully. Throws `RuntimeException` Since 12.1
`public`	# `disconnect( )` Disconnects the database. Disconnects the database. Since 12.1
`public string`	# `escape( string $text, boolean $extra = false )` Method to escape a string for usage in an SQL statement. Method to escape a string for usage in an SQL statement. Parameters `$text` `string` - $text The string to be escaped. `$extra` `boolean` - $extra Optional parameter to provide extra escaping. Returns `string` - The escaped string. Since 12.1
`public static boolean`	# `isSupported( )` Test to see if the MySQL connector is available. Test to see if the MySQL connector is available. Returns `boolean` - True on success, false otherwise. Since 12.1
`public boolean`	# `connected( )` Determines if the connection to the server is active. Determines if the connection to the server is active. Returns `boolean` - True if connected to the database engine. Since 12.1
`public JDatabaseDriverMysqli`	# `dropTable( string $tableName, boolean $ifExists = true )` Drops a table from the database. Drops a table from the database. Parameters `$tableName` `string` - $tableName The name of the database table to drop. `$ifExists` `boolean` - $ifExists Optionally specify that the table must exist before it is dropped. Returns `JDatabaseDriverMysqli` - Returns this object to support chaining. Throws `RuntimeException` Since 12.2
`public integer`	# `getAffectedRows( )` Get the number of affected rows by the last INSERT, UPDATE, REPLACE or DELETE for the previous executed SQL statement. Get the number of affected rows by the last INSERT, UPDATE, REPLACE or DELETE for the previous executed SQL statement. Returns `integer` - The number of affected rows. Since 12.1
`public mixed`	# `getCollation( )` Method to get the database collation. Method to get the database collation. Returns `mixed` - The collation in use by the database (string) or boolean false if not supported. Throws `RuntimeException` Since 12.2
`public string`	# `getConnectionCollation( )` Method to get the database connection collation, as reported by the driver. If the connector doesn't support reporting this value please return an empty string. Method to get the database connection collation, as reported by the driver. If the connector doesn't support reporting this value please return an empty string. Returns `string` Overrides `JDatabaseDriver::getConnectionCollation`
`public integer`	# `getNumRows( resource $cursor = null )` Get the number of returned rows for the previous executed SQL statement. This command is only valid for statements like SELECT or SHOW that return an actual result set. To retrieve the number of rows affected by an INSERT, UPDATE, REPLACE or DELETE query, use getAffectedRows(). Get the number of returned rows for the previous executed SQL statement. This command is only valid for statements like SELECT or SHOW that return an actual result set. To retrieve the number of rows affected by an INSERT, UPDATE, REPLACE or DELETE query, use getAffectedRows(). Parameters `$cursor` `resource` - $cursor An optional database cursor resource to extract the row count from. Returns `integer` - The number of returned rows. Since 12.1
`public array`	# `getTableCreate( mixed $tables )` Shows the table CREATE statement that creates the given tables. Shows the table CREATE statement that creates the given tables. Parameters `$tables` `mixed` - $tables A table name or a list of table names. Returns `array` - A list of the create SQL for the tables. Throws `RuntimeException` Since 12.1
`public array`	# `getTableColumns( string $table, boolean $typeOnly = true )` Retrieves field information about a given table. Retrieves field information about a given table. Parameters `$table` `string` - $table The name of the database table. `$typeOnly` `boolean` - $typeOnly True to only return field types. Returns `array` - An array of fields for the database table. Throws `RuntimeException` Since 12.2
`public array`	# `getTableKeys( string $table )` Get the details list of keys for a table. Get the details list of keys for a table. Parameters `$table` `string` - $table The name of the table. Returns `array` - An array of the column specification for the table. Throws `RuntimeException` Since 12.2
`public array`	# `getTableList( )` Method to get an array of all tables in the database. Method to get an array of all tables in the database. Returns `array` - An array of all the tables in the database. Throws `RuntimeException` Since 12.2
`public string`	# `getVersion( )` Get the version of the database connector. Get the version of the database connector. Returns `string` - The database connector version. Since 12.1
`public mixed`	# `insertid( )` Method to get the auto-incremented value from the last INSERT statement. Method to get the auto-incremented value from the last INSERT statement. Returns `mixed` - The value of the auto-increment field from the last inserted row. If the value is greater than maximal int value, it will return a string. Since 12.1
`public JDatabaseDriverMysqli`	# `lockTable( string $table )` Locks a table in the database. Locks a table in the database. Parameters `$table` `string` - $table The name of the table to unlock. Returns `JDatabaseDriverMysqli` - Returns this object to support chaining. Throws `RuntimeException` Since 12.2
`public mixed`	# `execute( )` Execute the SQL statement. Execute the SQL statement. Returns `mixed` - A database cursor resource on success, boolean false on failure. Throws `RuntimeException` Since 12.1
`public JDatabaseDriverMysqli`	# `renameTable( string $oldTable, string $newTable, string $backup = null, string $prefix = null )` Renames a table in the database. Renames a table in the database. Parameters `$oldTable` `string` - $oldTable The name of the table to be renamed `$newTable` `string` - $newTable The new name for the table. `$backup` `string` - $backup Not used by MySQL. `$prefix` `string` - $prefix Not used by MySQL. Returns `JDatabaseDriverMysqli` - Returns this object to support chaining. Throws `RuntimeException` Since 12.2
`public boolean`	# `select( string $database )` Select a database for use. Select a database for use. Parameters `$database` `string` - $database The name of the database to select for use. Returns `boolean` - True if the database was successfully selected. Throws `RuntimeException` Since 12.1
`public boolean`	# `setUtf( )` Set the connection to use UTF-8 character encoding. Set the connection to use UTF-8 character encoding. Returns `boolean` - True on success. Since 12.1
`public`	# `transactionCommit( boolean $toSavepoint = false )` Method to commit a transaction. Method to commit a transaction. Parameters `$toSavepoint` `boolean` - $toSavepoint If true, commit to the last savepoint. Throws `RuntimeException` Since 12.2
`public`	# `transactionRollback( boolean $toSavepoint = false )` Method to roll back a transaction. Method to roll back a transaction. Parameters `$toSavepoint` `boolean` - $toSavepoint If true, rollback to the last savepoint. Throws `RuntimeException` Since 12.2
`public`	# `transactionStart( boolean $asSavepoint = false )` Method to initialize a transaction. Method to initialize a transaction. Parameters `$asSavepoint` `boolean` - $asSavepoint If true and a transaction is already active, a savepoint will be created. Throws `RuntimeException` Since 12.2
`protected mixed`	# `fetchArray( mixed $cursor = null )` Method to fetch a row from the result set cursor as an array. Method to fetch a row from the result set cursor as an array. Parameters `$cursor` `mixed` - $cursor The optional result set cursor from which to fetch the row. Returns `mixed` - Either the next row from the result set or false if there are no more rows. Since 12.1
`protected mixed`	# `fetchAssoc( mixed $cursor = null )` Method to fetch a row from the result set cursor as an associative array. Method to fetch a row from the result set cursor as an associative array. Parameters `$cursor` `mixed` - $cursor The optional result set cursor from which to fetch the row. Returns `mixed` - Either the next row from the result set or false if there are no more rows. Since 12.1
`protected mixed`	# `fetchObject( mixed $cursor = null, string $class = 'stdClass' )` Method to fetch a row from the result set cursor as an object. Method to fetch a row from the result set cursor as an object. Parameters `$cursor` `mixed` - $cursor The optional result set cursor from which to fetch the row. `$class` `string` - $class The class name to use for the returned row object. Returns `mixed` - Either the next row from the result set or false if there are no more rows. Since 12.1
`protected`	# `freeResult( mixed $cursor = null )` Method to free up the memory used for the result set. Method to free up the memory used for the result set. Parameters `$cursor` `mixed` - $cursor The optional result set cursor from which to fetch the row. Since 12.1
`public JDatabaseDriverMysqli`	# `unlockTables( )` Unlocks tables in the database. Unlocks tables in the database. Returns `JDatabaseDriverMysqli` - Returns this object to support chaining. Throws `RuntimeException` Since 12.1
`protected integer`	# `getErrorNumber( )` Return the actual SQL Error number Return the actual SQL Error number Returns `integer` - The SQL Error number Since 3.4.6
`protected string`	# `getErrorMessage( )` Return the actual SQL Error message Return the actual SQL Error message Returns `string` - The SQL Error message Since 3.4.6

Methods inherited from JDatabaseDriver

__call(), addDisconnectHandler(), alterDbCharacterSet(), alterTableCharacterSet(), convertUtf8mb4QueryToUtf8(), createDatabase(), getAlterDbCharacterSet(), getAlterTableCharacterSet(), getCallStacks(), getConnection(), getConnectors(), getCount(), getCreateDatabaseQuery(), getDatabase(), getDateFormat(), getExporter(), getImporter(), getInstance(), getIterator(), getLog(), getMinimum(), getName(), getNullDate(), getPrefix(), getQuery(), getServerType(), getTimings(), getUTFSupport(), hasUTF8mb4Support(), hasUTFSupport(), insertObject(), isMinimumVersion(), loadAssoc(), loadAssocList(), loadColumn(), loadNextObject(), loadNextRow(), loadObject(), loadObjectList(), loadResult(), loadRow(), loadRowList(), quote(), quoteName(), quoteNameStr(), replacePrefix(), setDebug(), setQuery(), splitSql(), truncateTable(), updateObject()

Methods inherited from JDatabase

getErrorMsg(), getErrorNum(), query(), stderr(), test()

Magic methods summary

Magic methods inherited from JDatabaseDriver

q(), qn()

Properties summary

`public string`	`$name`	# The name of the database driver. The name of the database driver. Since 12.1
`public string`	`$serverType`	# The type of the database server family supported by this driver. The type of the database server family supported by this driver. Since CMS 3.5.0
`protected mysqli`	`$connection`	# The database connection resource. The database connection resource. Since 11.1
`protected string`	`$nameQuote`	# The character(s) used to quote SQL statement names such as table names or field names, etc. The child classes should define this as necessary. If a single character string the same character is used for both sides of the quoted name, else the first character will be used for the opening quote and the second for the closing quote. The character(s) used to quote SQL statement names such as table names or field names, etc. The child classes should define this as necessary. If a single character string the same character is used for both sides of the quoted name, else the first character will be used for the opening quote and the second for the closing quote. Since 12.2
`protected string`	`$nullDate`	# The null or zero representation of a timestamp for the database driver. This should be defined in child classes to hold the appropriate value for the engine. The null or zero representation of a timestamp for the database driver. This should be defined in child classes to hold the appropriate value for the engine. Since 12.2
`protected static string`	`$dbMinimum`	# The minimum supported database version. The minimum supported database version. Since 12.2

Properties inherited from JDatabaseDriver

$callStacks, $count, $cursor, $debug, $disconnectHandlers, $errorMsg, $errorNum, $instances, $limit, $log, $offset, $options, $sql, $tablePrefix, $timings, $transactionDepth, $utf, $utf8mb4

Namespaces

Classes

Interfaces

Exceptions

Constants

Functions

Class JDatabaseDriverMysqli

Direct known subclasses

Indirect known subclasses

Methods summary

Parameters

Since

Overrides

Since

Returns

Throws

Since

Since

Parameters

Returns

Since

Returns

Since

Returns

Since

Parameters

Returns

Throws

Since

Returns

Since

Returns

Throws

Since

Returns

Overrides

Parameters

Returns

Since

Parameters

Returns

Throws

Since

Parameters

Returns

Throws

Since

Parameters

Returns

Throws

Since

Returns

Throws

Since

Returns

Since

Returns

Since

Parameters

Returns

Throws

Since

Returns

Throws

Since

Parameters

Returns

Throws

Since

Parameters

Returns

Throws

Since

Returns

Since

Parameters

Throws

Since

Parameters

Throws