这些函数的行为受 php.ini 的影响。
| Name | Default | Changeable | Changelog |
|---|---|---|---|
| odbc.default_db * | NULL | PHP_INI_ALL | |
| odbc.default_user * | NULL | PHP_INI_ALL | |
| odbc.default_pw * | NULL | PHP_INI_ALL | |
| odbc.allow_persistent | "1" | PHP_INI_SYSTEM | |
| odbc.check_persistent | "1" | PHP_INI_SYSTEM | |
| odbc.max_persistent | "-1" | PHP_INI_SYSTEM | |
| odbc.max_links | "-1" | PHP_INI_SYSTEM | |
| odbc.defaultlrl | "4096" | PHP_INI_ALL | |
| odbc.defaultbinmode | "1" | PHP_INI_ALL | |
| odbc.default_cursortype | "3" | PHP_INI_ALL | Available as of PHP5.3.0 |
Note: Entries marked with * are not implemented yet.
有关 PHP_INI_* 常量进一步的细节与定义参见php.ini 配置选项。
以下是配置选项的简要解释。
ODBC data source to use if none is specified in odbc_connect() or odbc_pconnect().
User name to use if none is specified in odbc_connect() or odbc_pconnect().
Password to use if none is specified in odbc_connect() or odbc_pconnect().
Whether to allow persistent ODBC connections.
Check that a connection is still valid before reuse.
The maximum number of persistent ODBC connections per process.
The maximum number of ODBC connections per process, including persistent connections.
Handling of LONG fields. Specifies the number of bytes returned to variables.
当使用 integer 类型时，其值以字节为度量单位。还可以用简化符号，说明见此 FAQ。Handling of binary data.
Controles the ODBC cursormodel. Possible values are SQL_CURSOR_FORWARD_ONLY, SQL_CURSOR_KEYSET_DRIVEN, SQL_CURSOR_DYNAMIC and SQL_CURSOR_STATIC (default).