PHP Data Types
Variables can store data of different types, in PHP we do not need define the type of variable, its define automatic at run time.
If we assign string in a variable, then it becomes a string.
$value="Hello PHP"; // String
Later if we assign an integer value, the variable becomes an integer variable.
$value=10; // integer
PHP has eight data types:-
Scalar types:
1). Boolean ( It can be either TRUE or FALSE. )
2). Integer (An integer is a "number of set: n = {...,-3, -2, -1, 0, 1, 2,3, ...}. )
3). Float ( Floating-point number,)
4). String (Group of characters, like "Hello PHP".)
Compound types:
5). Array (An array is a group of values in one single variable)
6). Object (An object stores data and code, its store information about how to process that data.)
Special types:
7). Resource ( Holding a reference to an external resource.)
8). NULL (it is a variable that has no value assigned to it)