PHP Variables and Types

PHP Variables and Types 

 Variables in a program are used to store some values or data that can be used later in a program. The variables are also like containers that store character values, numeric values, memory addresses, and strings. PHP has its own way of declaring and storing variables.

• As PHP is a loosely typed language, so we do not need to declare the data types of the variables. It automatically analyzes the values and makes conversions to its correct datatype.
• After declaring a variable, it can be reused throughout the code.
• Assignment Operator (=) is used to assign the value to a variable.

To define a variable, simply use the following syntax:

$x = 1;
$y = "foo";
$z = True;

PHP Variable: Declaring string, integer, and float

Let’s see the example to store string, integer, and float values in PHP variables.

<?php  
$str="hello string";  
$x=200;  
$y=44.6;  
echo "string is: $str <br/>";  
echo "integer is: $x <br/>";  
echo "float is: $y <br/>";  
?>

PHP supports the following data types:

• String
• Integer
• Float (floating point numbers – also called double)
• Boolean
• Array
• Object
• NULL
• Resource