Požiadavky
These
functions
are
available
as
part
of
the
standard
module
,
which
is
always
available
.
Inštalácia
There
is
no
installation
needed
to
use
these
functions
,
they
are
part
of
the
PHP
core
.
Konfigurácia
behu
This
extension
does
not
define
any
configuration
directives
.
Typy
prostriedkov
This
extension
does
not
define
any
resource
types
.
Preddefinované
konštanty
The
constants
listed
here
are
always
available
as
part
of
the
PHP
core
.
Only M_PI is available in PHP versions up to and including
PHP 4.0.0. All other constants are available starting with
PHP 4.0.0. Constants labeled [4.0.2] were added in PHP
4.0.2.