Php MySql Functions With Example

MySql functions

Using the mysqli functions we can have the advantage of all latest and advanced features of MySQL.

List of various MySql functions:

Function Description
mysqli_affected_rows() Returns the number of affected rows in the previous MySQL operation
mysqli_autocommit() Turns on or off auto-committing database modifications
mysqli_change_user() Changes the user of the specified database connection
mysqli_character_set_name() Returns the default character set for 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 the last connect call
mysqli_connect_error() Returns the error description from the last connection error
mysqli_connect() Opens a new connection to the MySQL server
mysqli_data_seek() Adjusts the result pointer to an arbitrary row in the result-set
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 array of errors for the most recent MySQLi function call
mysqli_error() Returns the last error message for the most recent MySQLi function call
mysqli_fetch_all() Fetches all result rows as an associative array, a numeric array, or both
mysqli_fetch_array() Fetches a result row as an associative, a numeric array, or both
mysqli_fetch_assoc() Fetches a result row as an associative array
mysqli_fetch_field_direct() Fetch meta-data for a single field as an object
mysqli_fetch_field() Returns the next field in the result set, as an object
mysqli_fetch_fields() Returns an array of objects representing the fields in a result set
mysqli_fetch_lengths() Returns the lengths of the columns of the current row in the result set
mysqli_fetch_object() Returns the current row of a result set as an object
mysqli_fetch_row() Fetches one row of data from the result set and returns it as an enumerated array
mysqli_field_count() Returns the number of columns for the most recent query
mysqli_field_seek() Sets the result pointer to a specified field offset
mysqli_field_tell() Returns the position of the field cursor used for the last mysqli_fetch_field() call
mysqli_free_result() Frees the memory associated with a result
mysqli_get_charset() Returns a character set object
mysqli_get_client_info() Returns the MySQL client version as a string
mysqli_get_client_stats() Returns client per-process statistics.
mysqli_get_client_version() Returns the MySQL client version as an integer
mysqli_get_connection_stats() Returns client connection statistics.
mysqli_get_host_info() Returns a string representing the type of connection used including the MySQL server hostname
mysqli_get_proto_info() Returns the version of the MySQL protocol used
mysqli_get_server_info() Returns the version of the MySQL server
mysqli_get_server_version() Returns the version of the MySQL server as an integer
mysqli_info() Returns information about the last query executed
mysqli_init() Initializes MySQLi and returns a resource for use with mysqli_real_connect()
mysqli_insert_id() Returns the auto-generated id used in 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 multiple queries on the database
mysqli_next_result() Prepares the next result set from mysqli_multi_query()
mysqli_num_fields() Returns the number of fields in a result set
mysqli_num_rows() Returns the number of rows in a result set
mysqli_options() Sets extra connect options and affect behavior for a connection
mysqli_ping() Pings a server connection, or tries to reconnect if the connection has gone down
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
mysqli_real_query() Executes an SQL query
mysqli_refresh() Refreshes tables or caches, or resets the replication server information
mysqli_rollback() Rollbacks the current transaction for the database
mysqli_select_db() Selects the default database for database queries
mysqli_set_charset() Sets the default client character set
mysqli_set_local_infile_default() Unsets user defined handler for load local infile command
mysqli_set_local_infile_handler() Set callback function for LOAD DATA LOCAL INFILE command
mysqli_sqlstate() Returns the SQLSTATE error code from the previous MySQL operation
mysqli_ssl_set() Used to establish secure connections using SSL
mysqli_stat() Returns 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 the client library is compiled as thread-safe
mysqli_use_result() Initiates the retrieval of a result set from the last query executed using the mysqli_real_query()
mysqli_warning_count() Returns the number of warnings from the last query in the connection

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