&reftitle.runtime; &extension.runtime; Name Default Changeable pgsql.allow_persistent "1" PHP_INI_SYSTEM pgsql.max_persistent "-1" PHP_INI_SYSTEM pgsql.max_links "-1" PHP_INI_SYSTEM pgsql.auto_reset_persistent "0" PHP_INI_SYSTEM pgsql.ignore_notice "0" PHP_INI_ALL pgsql.log_notice "0" PHP_INI_ALL For further details and definition of the PHP_INI_* constants see ini_set. Here is a short explanation of the configuration directives. pgsql.allow_persistent boolean Whether to allow persistent Postgres connections. pgsql.max_persistent integer The maximum number of persistent Postgres connections per process. pgsql.max_links integer The maximum number of Postgres connections per process, including persistent connections.