Comandos mySQLi
https://www.php.net/manual/en/book.mysqli.php
mysqli — The mysqli class
    mysqli::$affected_rows — Gets the number of affected rows in a previous MySQL
operation
    mysqli::autocommit — Turns on or off auto-committing database modifications
    mysqli::begin_transaction — Starts a transaction
    mysqli::change_user — Changes the user of the specified database connection
    mysqli::character_set_name — Returns the default character set for the database
connection
    mysqli::close — Closes a previously opened database connection
    mysqli::commit — Commits the current transaction
    mysqli::$connect_errno — Returns the error code from last connect call
    mysqli::$connect_error — Returns a string description of the last connect error
    mysqli::__construct — Open a new connection to the MySQL server
    mysqli::debug — Performs debugging operations
    mysqli::dump_debug_info — Dump debugging information into the log
    mysqli::$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::$field_count — Returns the number of columns for the most recent query
    mysqli::get_charset — Returns a character set object
    mysqli::$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 a resource for use with
mysqli_real_connect()
    mysqli::$insert_id — Returns the auto generated id used in the latest query
    mysqli::kill — Asks the server to kill a MySQL thread
    mysqli::more_results — Check if there are any more query results from a multi
query
    mysqli::multi_query — Performs a query on the database
    mysqli::next_result — Prepare next result from multi_query
    mysqli::options — Set options
    mysqli::ping — Pings a server connection, or tries to reconnect if the
connection has gone down
    mysqli::poll — Poll connections
    mysqli::prepare — Prepare an SQL statement for execution
    mysqli::query — Performs a query on the database
    mysqli::real_connect — Opens a connection to a mysql server
    mysqli::real_escape_string — Escapes special characters in a string for use in
an SQL statement, taking into account the current charset of the connection
    mysqli::real_query — Execute an SQL query
    mysqli::reap_async_query — Get result from async query
    mysqli::refresh — Refreshes
    mysqli::release_savepoint — Removes the named savepoint from the set of
savepoints of the current transaction
    mysqli::rollback — Rolls back current transaction
    mysqli::rpl_query_type — Returns RPL query type
    mysqli::savepoint — Set a named transaction savepoint
    mysqli::select_db — Selects the default database for database queries
    mysqli::send_query — Send the query and return
    mysqli::set_charset — Sets the default client character set
    mysqli::set_local_infile_default — Unsets user defined handler for load local
infile command
    mysqli::set_local_infile_handler — Set callback function for LOAD DATA LOCAL
INFILE command
    mysqli::$sqlstate — Returns the SQLSTATE error 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::$affected_rows — Returns the total number of rows changed,
deleted, or inserted by the last executed statement
    mysqli_stmt::attr_get — Used to get the current value of a statement attribute
    mysqli_stmt::attr_set — Used to modify the behavior of a prepared statement
    mysqli_stmt::bind_param — Binds variables to a prepared statement as parameters
    mysqli_stmt::bind_result — Binds variables to a prepared statement for result
storage
    mysqli_stmt::close — Closes a prepared statement
    mysqli_stmt::__construct — Constructs a new mysqli_stmt object
    mysqli_stmt::data_seek — Seeks to an arbitrary row in statement result set
    mysqli_stmt::$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 Query
    mysqli_stmt::fetch — Fetch results from a prepared statement into the bound
variables
    mysqli_stmt::$field_count — Returns the number of field in the given statement
    mysqli_stmt::free_result — Frees stored result memory for the given statement
handle
    mysqli_stmt::get_result — Gets a result set from a prepared statement
    mysqli_stmt::get_warnings — Get result of SHOW WARNINGS
    mysqli_stmt::$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::$num_rows — Return the number of rows in statements result set
    mysqli_stmt::$param_count — Returns the number of parameter for the given
statement
    mysqli_stmt::prepare — Prepare 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::$sqlstate — Returns SQLSTATE error from previous statement
operation
    mysqli_stmt::store_result — Transfers a result set from a prepared statement
mysqli_result — The mysqli_result class
    mysqli_result::$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 — Fetches all result rows as an associative array, a
numeric array, or both
    mysqli_result::fetch_array — Fetch a result row as an associative, a numeric
array, or both
    mysqli_result::fetch_assoc — Fetch a result row as an associative array
    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 — Returns the current row of a result set as an
object
    mysqli_result::fetch_row — Get a result row as an enumerated array
    mysqli_result::$field_count — Get the number of fields in a result
    mysqli_result::field_seek — Set result pointer to a specified field offset
    mysqli_result::free — Frees the memory associated with a result
    mysqli_result::$lengths — Returns the lengths of the columns of the current row
in the result set
    mysqli_result::$num_rows — Gets the number of rows in a result
mysqli_driver — The mysqli_driver class
    mysqli_driver::embedded_server_end — Stop embedded server
    mysqli_driver::embedded_server_start — Initialize and start embedded server
    mysqli_driver::$report_mode — Enables or disables internal report functions
mysqli_warning — The mysqli_warning class
    mysqli_warning::__construct — The __construct purpose
    mysqli_warning::next — Fetch next warning
mysqli_sql_exception — The mysqli_sql_exception class
Aliases and deprecated Mysqli Functions
    mysqli_bind_param — Alias for mysqli_stmt_bind_param
    mysqli_bind_result — Alias for mysqli_stmt_bind_result
    mysqli_client_encoding — Alias of mysqli_character_set_name
    mysqli_connect — Alias of mysqli::__construct
    mysqli::disable_reads_from_master — Disable reads from master
    mysqli_disable_rpl_parse — Disable RPL parse
    mysqli_enable_reads_from_master — Enable reads from master
    mysqli_enable_rpl_parse — Enable RPL parse
    mysqli_escape_string — Alias of mysqli_real_escape_string
    mysqli_execute — Alias for mysqli_stmt_execute
    mysqli_fetch — Alias for mysqli_stmt_fetch
    mysqli_get_cache_stats — Returns client Zval cache statistics
    mysqli_get_client_stats — Returns client per-process statistics
    mysqli_get_links_stats — Return information about open and cached links
    mysqli_get_metadata — Alias for mysqli_stmt_result_metadata
    mysqli_master_query — Enforce execution of a query on the master in a
master/slave setup
    mysqli_param_count — Alias for mysqli_stmt_param_count
    mysqli_report — Alias of mysqli_driver->report_mode
    mysqli_rpl_parse_enabled — Check if RPL parse is enabled
    mysqli_rpl_probe — RPL probe
    mysqli_send_long_data — Alias for mysqli_stmt_send_long_data
    mysqli::set_opt — Alias of mysqli_options
    mysqli_slave_query — Force execution of a query on a slave in a master/slave
setup