Syntax
string gettype ( mixed var )
Popis
Príkaz jazyka PHP
Get the type of a variable
Returns the type of the PHP variable var.
Varovanie
Never use gettype to test for a certain type, since the returned string may be subject to change in a future version. In addition, it is slow too, as it involves string comparison.
Instead, use the is_* functions.
Vrátené hodnoty z funkcie
- "boolean" (since PHP 4)
- "integer"
- "double" (for historical reasons "double" is returned in case of a float, and not simply "float")
- "string"
- "array"
- "object"
- "resource" (since PHP 4)
- "NULL" (since PHP 4)
- "user function" (PHP 3 only, deprecated)
- "unknown type"
For PHP 4, you should use function_exists and method_exists to replace the prior usage of gettype on a function.
Pozri aj
settype, is_array, is_bool, is_float, is_int, is_null, is_numeric, is_object, is_resource, is_scalar, a is_string.