The behaviour of these functions is affected by settings in php.ini.
Counter configuration options
For further details and definitions of the
PHP_INI_* modes, see the Where a configuration setting may be set.
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).
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.
Sets the initial value of the counter used by the basic interface
whenever it is reset.