CXXV. Sybase Functions
安装
To enable Sybase-DB support configure PHP --with-sybase[=DIR]. DIR is the Sybase home directory, defaults to /home/sybase. To enable Sybase-CT support configure PHP --with-sybase-ct[=DIR]. DIR is the Sybase home directory, defaults to /home/sybase.
运行时配置
这些函数的行为受 php.ini 的影响。
表格 1. Sybase configuration options
| Name | Default | Changeable | Changelog |
|---|---|---|---|
| sybase.allow_persistent | "On" | PHP_INI_SYSTEM | |
| sybase.max_persistent | "-1" | PHP_INI_SYSTEM | |
| sybase.max_links | "-1" | PHP_INI_SYSTEM | |
| sybase.interface_file | "/usr/sybase/interfaces" | PHP_INI_SYSTEM | |
| sybase.min_error_severity | "10" | PHP_INI_ALL | |
| sybase.min_message_severity | "10" | PHP_INI_ALL | |
| sybase.compatability_mode | "Off" | PHP_INI_SYSTEM | |
| magic_quotes_sybase | "0" | PHP_INI_ALL |
以下是该配置选项的简要解释。
- sybase.allow_persistent boolean
Whether to allow persistent Sybase connections.
- sybase.max_persistent integer
The maximum number of persistent Sybase connections per process. -1 means no limit.
- sybase.max_links integer
The maximum number of Sybase connections per process, including persistent connections. -1 means no limit.
- sybase.min_error_severity integer
Minimum error severity to display.
- sybase.min_message_severity integer
Minimum message severity to display.
- sybase.compatability_mode boolean
Compatibility mode with old versions of PHP 3.0. If on, this will cause PHP to automatically assign types to results according to their Sybase type, instead of treating them all as strings. This compatibility mode will probably not stay around forever, so try applying whatever necessary changes to your code, and turn it off.
- magic_quotes_sybase boolean
If magic_quotes_sybase is on, a single-quote is escaped with a single-quote instead of a backslash if magic_quotes_gpc or magic_quotes_runtime are enabled.
注: Note that when magic_quotes_sybase is ON it completely overrides magic_quotes_gpc . In this case even when magic_quotes_gpc is enabled neither double quotes, backslashes or NUL's will be escaped.
表格 2. Sybase-CT configuration options
| Name | Default | Changeable | Changelog |
|---|---|---|---|
| sybct.allow_persistent | "1" | PHP_INI_SYSTEM | Available since PHP 4.0.4. |
| sybct.max_persistent | "-1" | PHP_INI_SYSTEM | Available since PHP 4.0.4. |
| sybct.max_links | "-1" | PHP_INI_SYSTEM | Available since PHP 4.0.4. |
| sybct.min_server_severity | "10" | PHP_INI_ALL | Available since PHP 4.0.4. |
| sybct.min_client_severity | "10" | PHP_INI_ALL | Available since PHP 4.0.4. |
| sybct.hostname | NULL | PHP_INI_ALL | Available since PHP 4.0.4. |
| sybct.deadlock_retry_count | "0" | PHP_INI_ALL | Available since PHP 4.3.0. |
以下是该配置选项的简要解释。
- sybct.allow_persistent boolean
Whether to allow persistent Sybase-CT connections. The default is on.
- sybct.max_persistent integer
The maximum number of persistent Sybase-CT connections per process. The default is -1 meaning unlimited.
- sybct.max_links integer
The maximum number of Sybase-CT connections per process, including persistent connections. The default is -1 meaning unlimited.
- sybct.min_server_severity integer
Server messages with severity greater than or equal to sybct.min_server_severity will be reported as warnings. This value can also be set from a script by calling sybase_min_server_severity(). The default is 10 which reports errors of information severity or greater.
- sybct.min_client_severity integer
Client library messages with severity greater than or equal to sybct.min_client_severity will be reported as warnings. This value can also be set from a script by calling sybase_min_client_severity(). The default is 10 which effectively disables reporting.
- sybct.login_timeout integer
The maximum time in seconds to wait for a connection attempt to succeed before returning failure. Note that if max_execution_time has been exceeded when a connection attempt times out, your script will be terminated before it can take action on failure. The default is one minute.
- sybct.timeout integer
The maximum time in seconds to wait for a select_db or query operation to succeed before returning failure. Note that if max_execution_time has been exceeded when an operation times out, your script will be terminated before it can take action on failure. The default is no limit.
- sybct.hostname string
The name of the host you claim to be connecting from, for display by sp_who. The default is none.
- sybct.deadlock_retry_count int
Allows you to define how often deadlocks are to be retried. The default is -1, or "forever".
有关 PHP_INI_* 常量进一步的细节与定义参见 附录 H。
预定义常量
本扩展模块未定义任何常量。
- 目录
- sybase_affected_rows -- Gets number of affected rows in last query
- sybase_close -- Closes a Sybase connection
- sybase_connect -- Opens a Sybase server connection
- sybase_data_seek -- Moves internal row pointer
- sybase_deadlock_retry_count -- Sets the deadlock retry count
- sybase_fetch_array -- Fetch row as array
- sybase_fetch_assoc -- Fetch a result row as an associative array
- sybase_fetch_field -- Get field information from a result
- sybase_fetch_object -- Fetch a row as an object
- sybase_fetch_row -- Get a result row as an enumerated array
- sybase_field_seek -- Sets field offset
- sybase_free_result -- Frees result memory
- sybase_get_last_message -- Returns the last message from the server
- sybase_min_client_severity -- Sets minimum client severity
- sybase_min_error_severity -- Sets minimum error severity
- sybase_min_message_severity -- Sets minimum message severity
- sybase_min_server_severity -- Sets minimum server severity
- sybase_num_fields -- Gets the number of fields in a result set
- sybase_num_rows -- Get number of rows in a result set
- sybase_pconnect -- Open persistent Sybase connection
- sybase_query -- Sends a Sybase query
- sybase_result -- Get result data
- sybase_select_db -- Selects a Sybase database
- sybase_set_message_handler -- Sets the handler called when a server message is raised
- sybase_unbuffered_query -- Send a Sybase query and do not block