Php/docs/ingres.configuration
运行时配置
这些函数的行为受 php.ini
中的设置影响。
名字 | 默认 | 可修改范围 | 更新日志 |
---|---|---|---|
ingres.allow_persistent | "1" | PHP_INI_SYSTEM | Available since ingres 1.0.0 |
ingres.array_index_start | "1" | PHP_INI_ALL | Available since ingres 1.4.0. |
ingres.auto | "1" | PHP_INI_ALL | Available since ingres 2.0.0. |
ingres.blob_segment_length | "4096" | PHP_INI_ALL | Available since ingres 1.2.0. |
ingres.cursor_mode | "0" | PHP_INI_ALL | Available since ingres 1.1.0. |
ingres.default_database | NULL | PHP_INI_ALL | Available since ingres 1.0.0 |
ingres.default_password | NULL | PHP_INI_ALL | Available since ingres 1.0.0 |
ingres.default_user | NULL | PHP_INI_ALL | Available since ingres 1.0.0 |
ingres.describe | 1 | PHP_INI_ALL | Available since ingres 2.1.0 |
ingres.fetch_buffer_size | 100 | PHP_INI_ALL | Available since ingres 2.1.0 |
ingres.max_links | "-1" | PHP_INI_SYSTEM | Available since ingres 1.0.0 |
ingres.max_persistent | "-1" | PHP_INI_SYSTEM | Available since ingres 1.0.0 |
ingres.reuse_connection | "1" | PHP_INI_ALL | Available since ingres 2.0.0 |
ingres.scrollable | "1" | PHP_INI_ALL | Available since ingres 2.0.0. |
ingres.trace | "0" | PHP_INI_ALL | Available since ingres 2.0.0. |
ingres.trace_connect | "0" | PHP_INI_ALL | Available since ingres 1.2.1. |
ingres.utf8 | "1" | PHP_INI_ALL | Available since ingres 2.0.0. |
有关 PHP_INI_* 样式的更多详情与定义,见 配置可被设定范围。 这是配置指令的简短说明。
ingres.allow_persistent
boolSpecifies whether to allow persistent connections to Ingres
ingres.array_index_start
intSpecifies the start value for an integer key for arrays generated by ingres_fetch_row() or ingres_fetch_array(). By default
ingres.array_index_start
is set to 1. If you wish to make the ingres extension behave like other database extensions set this configuration option to 0.ingres.auto
boolEnables or disables autocommit emulation. Ingres cannot have multiple cursors open with autocommit enabled. When enabled, the driver emulates autocommit.
ingres.blob_segment_length
intSpecifies the amount of memory to use when reading BLOB data, in bytes
ingres.cursor_mode
intSpecifies the default mode for cursors opened with ingres_prepare(). Valid values are
INGRES_CURSOR_UPDATE
orINGRES_CURSOR_READONLY
.ingres.default_database
stringSpecifies the default database name to use when connecting to the database server if no other name is specified. Does not apply in SQL 安全模式.
ingres.default_password
stringSpecifies the default password to use when connecting to the database server if no other name is specified. Does not apply in SQL 安全模式.
ingres.default_user
stringSpecifies the default user name to use when connecting to the database server if no other name is specified. Does not apply in SQL 安全模式.
ingres.describe
boolEnables the use of
DESCRIBE INPUT
to determine the expected data types for queries that use parameters. Available with Ingres 9.1.0 and later. When disabled, queries that have parameters passed may need to manually describe the types of those parameters using the types parameter in ingres_query().Note:
Enabling this feature with ingres_query() will cause additional communications traffic between this extension and the server. To minimize this additional traffic, use ingres_prepare() and ingres_execute().
ingres.fetch_buffer_size
intSpecifies the number of pre-fetch rows that ingres_fetch_array(), ingres_fetch_object() and ingres_fetch_row() will try and fetch in one fetch operation.
ingres.max_links
intSpecifies the maximum number of Ingres sessions allowed per process or thread. The number of sessions should not exceed the total number of connected sessions configured within Ingres.
ingres.max_persistent
intSpecifies the maximum number of persistent Ingres sessions allowed per process or thread. The number of sessions should not exceed the total number of connected sessions configured within Ingres.
ingres.reuse_connection
boolReuses an existing active connection if connecting to the same database with the same user name
ingres.scrollable
boolEnables support for scrollable cursors. When fetching CLOB or BLOB data, this should be set to
false
. Available with Ingres 9.2.0 or later.ingres.trace
boolEnables simple tracing using
E_NOTICE
messagesingres.trace_connect
boolPrints
E_NOTICE
messages during ingres_connect() or ingres_pconnect() callsingres.utf8
boolAssumes that strings being passed to National Character column types (
NVARCHAR
orNCHAR
) are using UTF8 encoding and converts them to UTF16 for the server