Installation
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Installing/Configuring
PHP Manual

## Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Sybase configuration options
Name | Default | Changeable | Changelog
--- | --- | --- | ---
sybase.allow_persistent | "1" | PHP_INI_ALL | PHP_INI_ALL in PHP <= 4.0.2. PHP_INI_SYSTEM in PHP <= 4.0.3.
sybase.max_persistent | "-1" | PHP_INI_ALL | PHP_INI_ALL in PHP <= 4.0.2. PHP_INI_SYSTEM in PHP <= 4.0.3.
sybase.max_links | "-1" | PHP_INI_ALL | PHP_INI_ALL in PHP <= 4.0.2. PHP_INI_SYSTEM in PHP <= 4.0.3.
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 | "0" | PHP_INI_ALL |
magic_quotes_sybase | "0" | PHP_INI_ALL | Deprecated in PHP 5.3.0. Removed in PHP 5.4.0.

Here's a short explanation of the configuration directives.

`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.

`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. This setting is also respected by addslashes and stripslashes.

  > Note:

  > 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.

  Warning

  This feature has been DEPRECATED as of PHP 5.3.0 and REMOVED as of PHP 5.4.0.

Sybase-CT configuration options
Name | Default | Changeable | Changelog
--- | --- | --- | ---
sybct.allow_persistent | "1" | PHP_INI_SYSTEM | PHP_INI_ALL in PHP <= 4.0.2. Available since PHP 4.0.2. Removed in PHP 4.0.3.
sybct.max_persistent | "-1" | PHP_INI_SYSTEM | PHP_INI_ALL in PHP <= 4.0.2. Available since PHP 4.0.2. Removed in PHP 4.0.3.
sybct.max_links | "-1" | PHP_INI_SYSTEM | PHP_INI_ALL in PHP <= 4.0.2. Available since PHP 4.0.2. Removed in PHP 4.0.3.
sybct.min_server_severity | "10" | PHP_INI_ALL | Available since PHP 4.0.2. Removed in PHP 4.0.3.
sybct.min_client_severity | "10" | PHP_INI_ALL | Available since PHP 4.0.2. Removed in PHP 4.0.3.
sybct.hostname | NULL | PHP_INI_ALL | Available since PHP 4.0.2. Removed in PHP 4.0.3.
sybct.deadlock_retry_count | "0" | PHP_INI_ALL | Available since PHP 4.3.0.

Here's a short explanation of the configuration directives.

`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 0, value -1 means "forever".

For further details and definitions of the PHP_INI_* modes, see the Where a configuration setting may be set.