예약 상수

이 확장은 다음의 상수들을 정의합니다. 이 확장을 PHP에 내장했거나, 실행시에 동적으로 읽어들일 경우에만 사용할 수 있습니다.

Since PHP 4.3.0 it is possible to specify additional client flags for the mysql_connect() and mysql_pconnect() functions. The following constants are defined:

**MySQL client constants**
Constant	Description
`MYSQL_CLIENT_COMPRESS`	Use compression protocol
`MYSQL_CLIENT_IGNORE_SPACE`	Allow space after function names
`MYSQL_CLIENT_INTERACTIVE`	Allow interactive_timeout seconds (instead of wait_timeout ) of inactivity before closing the connection.
`MYSQL_CLIENT_SSL`	Use SSL encryption. This flag is only available with version 4.x of the MySQL client library or newer. Version 3.23.x is bundled both with PHP 4 and Windows binaries of PHP 5.

The function mysql_fetch_array() uses a constant for the different types of result arrays. The following constants are defined:

**MySQL fetch constants**
Constant	Description
`MYSQL_ASSOC`	Columns are returned into the array having the fieldname as the array index.
`MYSQL_BOTH`	Columns are returned into the array having both a numerical index and the fieldname as the array index.
`MYSQL_NUM`	Columns are returned into the array having a numerical index to the fields. This index starts with 0, the first field in the result.