Документ взят из кэша поисковой машины. Адрес оригинального документа : http://old.master.cmc.msu.ru/php/ref.variables.html
Дата изменения: Sun Feb 3 22:57:23 2002
Дата индексирования: Mon Oct 1 22:24:26 2012
Кодировка:
Variable Functions

XCVIII. Variable Functions

For information on how variables behave, see the Variables entry in the Language Reference section of the manual.

Table of Contents
doubleval -- Alias of floatval()
empty -- Determine whether a variable is set
floatval -- Get float value of a variable
gettype -- Get the type of a variable
get_defined_vars --  Returns an array of all defined variables
get_resource_type --  Returns the resource type
import_request_variables -- Import GET/POST/Cookie variables into the global scope
intval -- Get integer value of a variable
is_array -- Finds whether a variable is an array
is_bool --  Finds out whether a variable is a boolean
is_double -- Alias of is_float()
is_float -- Finds whether a variable is a float
is_int -- Find whether a variable is an integer
is_integer -- Alias of is_int()
is_long -- Alias of is_int()
is_null --  Finds whether a variable is NULL
is_numeric --  Finds whether a variable is a number or a numeric string
is_object -- Finds whether a variable is an object
is_real -- Alias of is_float()
is_resource --  Finds whether a variable is a resource
is_scalar --  Finds whether a variable is a scalar
is_string -- Finds whether a variable is a string
isset -- Determine whether a variable is set
print_r --  Prints human-readable information about a variable
serialize --  Generates a storable representation of a value
settype -- Set the type of a variable
strval -- Get string value of a variable
unserialize --  Creates a PHP value from a stored representation
unset -- Unset a given variable
var_dump -- Dumps information about a variable
var_export -- Outputs or returns a string representation of avariable
is_callable --  Find out whether the argument is a valid callable construct