MySQL Improved Extension


 
 



Introduction
Overview
Quick start guide

Dual procedural and object-oriented interface
Connections
Executing statements
Prepared Statements
Stored Procedures
Multiple Statements
API support for transactions
Metadata

Installing/Configuring

Requirements
Installation
Runtime Configuration
Resource Types

The mysqli Extension and Persistent Connections
Predefined Constants
Notes
The MySQLi Extension Function Summary
mysqli — The mysqli class

mysqli::$affected_rows — Gets the number of affected rows in a previous MySQL operation
mysqli::autocommit — Turns on or off auto-committing database modifications
mysqli::begin_transaction — Starts a transaction
mysqli::change_user — Changes the user of the specified database connection
mysqli::character_set_name — Returns the current character set of the database connection
mysqli::close — Closes a previously opened database connection
mysqli::commit — Commits the current transaction
mysqli::$connect_errno — Returns the error code from last connect call
mysqli::$connect_error — Returns a description of the last connection error
mysqli::__construct — Open a new connection to the MySQL server
mysqli::debug — Performs debugging operations
mysqli::dump_debug_info — Dump debugging information into the log
mysqli::$errno — Returns the error code for the most recent function call
mysqli::$error_list — Returns a list of errors from the last command executed
mysqli::$error — Returns a string description of the last error
mysqli::execute_query — Prepares, binds parameters, and executes SQL statement
mysqli::$field_count — Returns the number of columns for the most recent query
mysqli::get_charset — Returns a character set object
mysqli::$client_info Get MySQL client info
mysqli::$client_version Returns the MySQL client version as an integer
mysqli::get_connection_stats Returns statistics about the client connection
mysqli::$host_info Returns a string representing the type of connection used
mysqli::$protocol_version Returns the version of the MySQL protocol used
mysqli::$server_info Returns the version of the MySQL server
mysqli::$server_version Returns the version of the MySQL server as an integer
mysqli::get_warnings Get result of SHOW WARNINGS
mysqli::$info Retrieves information about the most recently executed query
mysqli::init Initializes MySQLi and returns an object for use with mysqli_real_connect()
mysqli::$insert_id Returns the value generated for an AUTO_INCREMENT column by the last query
mysqli::kill Asks the server to kill a MySQL thread
mysqli::more_results Check if there are any more query results from a multi query
mysqli::multi_query Performs one or more queries on the database
mysqli::next_result Prepare next result from multi_query
mysqli::options Set options
mysqli::ping Pings a server connection, or tries to reconnect if the connection has gone down
mysqli::poll Poll connections
mysqli::prepare Prepares an SQL statement for execution
mysqli::query Performs a query on the database
mysqli::real_connect Opens a connection to a mysql server
mysqli::real_escape_string Escapes special characters in a string for use in an SQL statement, taking into account the current charset of the connection
mysqli::real_query Execute an SQL query
mysqli::reap_async_query Get result from async query
mysqli::refresh Refreshes
mysqli::release_savepoint Removes the named savepoint from the set of savepoints of the current transaction
mysqli::rollback Rolls back current transaction
mysqli::savepoint Set a named transaction savepoint
mysqli::select_db Selects the default database for database queries
mysqli::set_charset Sets the client character set
mysqli::$sqlstate Returns the SQLSTATE error from previous MySQL operation
mysqli::ssl_set Used for establishing secure connections using SSL
mysqli::stat Gets the current system status
mysqli::stmt_init Initializes a statement and returns an object for use with mysqli_stmt_prepare
mysqli::store_result Transfers a result set from the last query
mysqli::$thread_id Returns the thread ID for the current connection
mysqli::thread_safe Returns whether thread safety is given or not
mysqli::use_result Initiate a result set retrieval
mysqli::$warning_count Returns the number of warnings from the last query for the given link


mysqli_stmt — The mysqli_stmt class

mysqli_stmt::$affected_rows — Returns the total number of rows changed, deleted, inserted, or matched by the last statement executed
mysqli_stmt::attr_get — Used to get the current value of a statement attribute
mysqli_stmt::attr_set — Used to modify the behavior of a prepared statement
mysqli_stmt::bind_param — Binds variables to a prepared statement as parameters
mysqli_stmt::bind_result — Binds variables to a prepared statement for result storage
mysqli_stmt::close — Closes a prepared statement
mysqli_stmt::__construct — Constructs a new mysqli_stmt object
mysqli_stmt::data_seek — Adjusts the result pointer to an arbitrary row in the buffered result
mysqli_stmt::$errno — Returns the error code for the most recent statement call
mysqli_stmt::$error_list — Returns a list of errors from the last statement executed
mysqli_stmt::$error — Returns a string description for last statement error
mysqli_stmt::execute — Executes a prepared statement
mysqli_stmt::fetch — Fetch results from a prepared statement into the bound variables
mysqli_stmt::$field_count — Returns the number of columns in the given statement
mysqli_stmt::free_result — Frees stored result memory for the given statement handle
mysqli_stmt::get_result — Gets a result set from a prepared statement as a mysqli_result object
mysqli_stmt::get_warnings — Get result of SHOW WARNINGS
mysqli_stmt::$insert_id — Get the ID generated from the previous INSERT operation
mysqli_stmt::more_results — Check if there are more query results from a multiple query
mysqli_stmt::next_result — Reads the next result from a multiple query
mysqli_stmt::$num_rows — Returns the number of rows fetched from the server
mysqli_stmt::$param_count — Returns the number of parameters for the given statement
mysqli_stmt::prepare — Prepares an SQL statement for execution
mysqli_stmt::reset — Resets a prepared statement
mysqli_stmt::result_metadata — Returns result set metadata from a prepared statement
mysqli_stmt::send_long_data — Send data in blocks
mysqli_stmt::$sqlstate — Returns SQLSTATE error from previous statement operation
mysqli_stmt::store_result — Stores a result set in an internal buffer


mysqli_result — The mysqli_result class

mysqli_result::__construct — Constructs a mysqli_result object
mysqli_result::$current_field — Get current field offset of a result pointer
mysqli_result::data_seek — Adjusts the result pointer to an arbitrary row in the result
mysqli_result::fetch_all — Fetch all result rows as an associative array, a numeric array, or both
mysqli_result::fetch_array — Fetch the next row of a result set as an associative, a numeric array, or both
mysqli_result::fetch_assoc — Fetch the next row of a result set as an associative array
mysqli_result::fetch_column — Fetch a single column from the next row of a result set
mysqli_result::fetch_field_direct — Fetch meta-data for a single field
mysqli_result::fetch_field — Returns the next field in the result set
mysqli_result::fetch_fields — Returns an array of objects representing the fields in a result set
mysqli_result::fetch_object — Fetch the next row of a result set as an object
mysqli_result::fetch_row — Fetch the next row of a result set as an enumerated array
mysqli_result::$field_count — Gets the number of fields in the result set
mysqli_result::field_seek — Set result pointer to a specified field offset
mysqli_result::free — Frees the memory associated with a result
mysqli_result::getIterator — Retrieve an external iterator
mysqli_result::$lengths — Returns the lengths of the columns of the current row in the result set
mysqli_result::$num_rows — Gets the number of rows in the result set

mysqli_driver — The mysqli_driver class

mysqli_driver::embedded_server_end — Stop embedded server
mysqli_driver::embedded_server_start — Initialize and start embedded server
mysqli_driver::$report_mode — Sets mysqli error reporting mode

mysqli_warning — The mysqli_warning class

mysqli_warning::__construct — Private constructor to disallow direct instantiation
mysqli_warning::next — Fetch next warning

mysqli_sql_exception — The mysqli_sql_exception class

mysqli_sql_exception::getSqlState — Returns the SQLSTATE error code

Aliases and deprecated Mysqli Functions
mysqli_connect — Alias of mysqli::__construct
mysqli::escape_string — Alias of mysqli_real_escape_string
mysqli_execute — Alias of mysqli_stmt_execute
mysqli_get_client_stats — Returns client per-process statistics
mysqli_get_links_stats — Return information about open and cached links
mysqli_report — Alias of mysqli_driver->report_mode
mysqli::set_opt — Alias of mysqli_options