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.