settype
Description
bool settype ( mixed var, string type)Set the type of variable var to type.
Possibles values of type are:
- "boolean" (or, since PHP 4.2.0, "bool") 
- "integer" (or, since PHP 4.2.0, "int") 
- "float" (only possible since PHP 4.2.0, for older versions use the deprecated variant "double") 
- "string" 
- "array" 
- "object" 
- "null" (since PHP 4.2.0) 
Returns TRUE on success or FALSE on failure.
See also gettype(), type-casting and type-juggling.
