Установка и настройка
PHP Manual

Настройка во время выполнения

Поведение этих функций зависит от установок в php.ini.

Counter configuration options
Name Default Changeable Changelog
counter.reset_time COUNTER_RESET_PER_REQUEST PHP_INI_ALL  
counter.save_path "" PHP_INI_ALL  
counter.initial_value "0" PHP_INI_ALL  

Для подробного описания констант PHP_INI_*, обратитесь к разделу Где могут быть установлены параметры конфигурации.

counter.reset_time integer
counter.reset_time tells "counter" to reset the counter used by the basic interface. It may be any of the COUNTER_RESET_* constants (see below).
counter.save_path string
Tells "counter" where to save data that has to persist between invocations of PHP (i.e. any counter that has COUNTER_RESET_NEVER or COUNTER_FLAG_SAVE). A file will be created at this path, which must be readable and writable to whatever user PHP is running as.
counter.initial_value integer
Sets the initial value of the counter used by the basic interface whenever it is reset.

Установка и настройка
PHP Manual