Sometimes you need to change a variable from one data type into another, and sometimes you want a variable to have a specific data type. This can be done with casting.
Change Data Type
Casting in PHP is done with these statements:
(string)– Converts to data type String(int)– Converts to data type Integer(float)– Converts to data type Float(bool)– Converts to data type Boolean(array)– Converts to data type Array(object)– Converts to data type Object(unset)– Converts to data type NULL