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. |
这是配置指令的简短说明。
ingres.allow_persistent
bool
Specifies whether to allow persistent connections to Ingres
ingres.array_index_start
int
Specifies 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
bool
Enables or disables autocommit emulation. Ingres cannot have multiple cursors open with autocommit enabled. When enabled, the driver emulates autocommit.
ingres.blob_segment_length
int
Specifies the amount of memory to use when reading BLOB data, in bytes
ingres.cursor_mode
int
Specifies the default mode for cursors opened with ingres_prepare(). Valid values
are INGRES_CURSOR_UPDATE or INGRES_CURSOR_READONLY.
ingres.default_database
string
Specifies 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
string
Specifies 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
string
Specifies 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
bool
Enables 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
int
Specifies 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
int
Specifies 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
int
Specifies 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
bool
Reuses an existing active connection if connecting to the same database with the same user name
ingres.scrollable
bool
Enables 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
bool
Enables simple tracing using E_NOTICE messages
ingres.trace_connect
bool
Prints E_NOTICE messages during
ingres_connect() or ingres_pconnect() calls
ingres.utf8
bool
Assumes that strings being passed to National Character column types
(NVARCHAR or NCHAR) are using UTF8 encoding and converts them to UTF16
for the server