Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

MYSQLI_READ_DEFAULT_GROUP

Read options from the named group from my.cnf or the file specified with MYSQLI_READ_DEFAULT_FILE
MYSQLI_READ_DEFAULT_FILE

Read options from the named option file instead of from my.cnf
MYSQLI_OPT_CONNECT_TIMEOUT

Connect timeout in seconds
MYSQLI_OPT_LOCAL_INFILE

Enables command LOAD LOCAL INFILE
MYSQLI_INIT_COMMAND

Command to execute when connecting to MySQL server. Will automatically be re-executed when reconnecting.
MYSQLI_CLIENT_SSL

Use SSL (encrypted protocol). This option should not be set by application programs; it is set internally in the MySQL client library
MYSQLI_CLIENT_COMPRESS

Use compression protocol
MYSQLI_CLIENT_INTERACTIVE

Allow interactive_timeout seconds (instead of wait_timeout seconds) of inactivity before closing the connection. The client's session wait_timeout variable will be set to the value of the session interactive_timeout variable.
MYSQLI_CLIENT_IGNORE_SPACE

Allow spaces after function names. Makes all functions names reserved words.
MYSQLI_CLIENT_NO_SCHEMA

Don't allow the db_name.tbl_name.col_name syntax.
MYSQLI_CLIENT_MULTI_QUERIES

Allows multiple semicolon-delimited queries in a single mysqli_query() call.
MYSQLI_STORE_RESULT

For using buffered resultsets
MYSQLI_USE_RESULT

For using unbuffered resultsets
MYSQLI_ASSOC

Columns are returned into the array having the fieldname as the array index.
MYSQLI_NUM

Columns are returned into the array having an enumerated index.
MYSQLI_BOTH

Columns are returned into the array having both a numerical index and the fieldname as the associative index.
MYSQLI_NOT_NULL_FLAG

Indicates that a field is defined as NOT NULL
MYSQLI_PRI_KEY_FLAG

Field is part of a primary index
MYSQLI_UNIQUE_KEY_FLAG

Field is part of a unique index.
MYSQLI_MULTIPLE_KEY_FLAG

Field is part of an index.
MYSQLI_BLOB_FLAG

Field is defined as BLOB
MYSQLI_UNSIGNED_FLAG

Field is defined as UNSIGNED
MYSQLI_ZEROFILL_FLAG

Field is defined as ZEROFILL
MYSQLI_AUTO_INCREMENT_FLAG

Field is defined as AUTO_INCREMENT
MYSQLI_TIMESTAMP_FLAG

Field is defined as TIMESTAMP
MYSQLI_SET_FLAG

Field is defined as SET
MYSQLI_NUM_FLAG

Field is defined as NUMERIC
MYSQLI_PART_KEY_FLAG

Field is part of an multi-index
MYSQLI_GROUP_FLAG

Field is part of GROUP BY
MYSQLI_TYPE_DECIMAL

Field is defined as DECIMAL
MYSQLI_TYPE_NEWDECIMAL

Precision math DECIMAL or NUMERIC field (MySQL 5.0.3 and up)
MYSQLI_TYPE_BIT

Field is defined as BIT (MySQL 5.0.3 and up)
MYSQLI_TYPE_TINY

Field is defined as TINYINT
MYSQLI_TYPE_SHORT

Field is defined as SMALLINT
MYSQLI_TYPE_LONG

Field is defined as INT
MYSQLI_TYPE_FLOAT

Field is defined as FLOAT
MYSQLI_TYPE_DOUBLE

Field is defined as DOUBLE
MYSQLI_TYPE_NULL

Field is defined as DEFAULT NULL
MYSQLI_TYPE_TIMESTAMP

Field is defined as TIMESTAMP
MYSQLI_TYPE_LONGLONG

Field is defined as BIGINT
MYSQLI_TYPE_INT24

Field is defined as MEDIUMINT
MYSQLI_TYPE_DATE

Field is defined as DATE
MYSQLI_TYPE_TIME

Field is defined as TIME
MYSQLI_TYPE_DATETIME

Field is defined as DATETIME
MYSQLI_TYPE_YEAR

Field is defined as YEAR
MYSQLI_TYPE_NEWDATE

Field is defined as DATE
MYSQLI_TYPE_INTERVAL

Field is defined as INTERVAL
MYSQLI_TYPE_ENUM

Field is defined as ENUM
MYSQLI_TYPE_SET

Field is defined as SET
MYSQLI_TYPE_TINY_BLOB

Field is defined as TINYBLOB
MYSQLI_TYPE_MEDIUM_BLOB

Field is defined as MEDIUMBLOB
MYSQLI_TYPE_LONG_BLOB

Field is defined as LONGBLOB
MYSQLI_TYPE_BLOB

Field is defined as BLOB
MYSQLI_TYPE_VAR_STRING

Field is defined as VARCHAR
MYSQLI_TYPE_STRING

Field is defined as CHAR or BINARY
MYSQLI_TYPE_CHAR

Field is defined as TINYINT. For CHAR, see MYSQLI_TYPE_STRING
MYSQLI_TYPE_GEOMETRY

Field is defined as GEOMETRY
MYSQLI_NEED_DATA

More data available for bind variable
MYSQLI_NO_DATA

No more data available for bind variable
MYSQLI_DATA_TRUNCATED

Data truncation occurred. Available since PHP 5.1.0 and MySQL 5.0.5.
MYSQLI_ENUM_FLAG

Field is defined as ENUM. Available since PHP 5.3.0.
MYSQLI_CURSOR_TYPE_FOR_UPDATE

MYSQLI_CURSOR_TYPE_NO_CURSOR

MYSQLI_CURSOR_TYPE_READ_ONLY

MYSQLI_CURSOR_TYPE_SCROLLABLE

MYSQLI_STMT_ATTR_CURSOR_TYPE

MYSQLI_STMT_ATTR_PREFETCH_ROWS

MYSQLI_STMT_ATTR_UPDATE_MAX_LENGTH

MYSQLI_SET_CHARSET_NAME

MYSQLI_REPORT_INDEX

Report if no index or bad index was used in a query.
MYSQLI_REPORT_ERROR

Report errors from mysqli function calls.
MYSQLI_REPORT_STRICT

Throw a mysqli_sql_exception for errors instead of warnings.
MYSQLI_REPORT_ALL

Set all options on (report all).
MYSQLI_REPORT_OFF

Turns reporting off.
MYSQLI_DEBUG_TRACE_ENABLED

Is set to 1 if mysqli_debug() functionality is enabled.
MYSQLI_SERVER_QUERY_NO_GOOD_INDEX_USED

MYSQLI_SERVER_QUERY_NO_INDEX_USED

MYSQLI_REFRESH_GRANT

Refreshes the grant tables.
MYSQLI_REFRESH_LOG

Flushes the logs, like executing the FLUSH LOGS SQL statement.
MYSQLI_REFRESH_TABLES

Flushes the table cache, like executing the FLUSH TABLES SQL statement.
MYSQLI_REFRESH_HOSTS

Flushes the host cache, like executing the FLUSH HOSTS SQL statement.
MYSQLI_REFRESH_STATUS

Reset the status variables, like executing the FLUSH STATUS SQL statement.
MYSQLI_REFRESH_THREADS

Flushes the thread cache.
MYSQLI_REFRESH_SLAVE

On a slave replication server: resets the master server information, and restarts the slave. Like executing the RESET SLAVE SQL statement.
MYSQLI_REFRESH_MASTER

On a master replication server: removes the binary log files listed in the binary log index, and truncates the index file. Like executing the RESET MASTER SQL statement