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gettype
Get the type of a variable
(PHP 4, PHP 5)
string gettype ( mixed var )
Returns the type of the PHP variable var.
Warning:
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.
Return Values
Possibles values for the returned string are:
- "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.