PHP STATIC PROPERTIES
- Static properties can be called directly - without creating an instance of a class.
 - Static properties are declared with the static keyword.
 - Static properties and methods can be used without creating an instance of the class.
 - Static properties are used when we'd like to store class-level data, also not bound to an instance.
 - The static keyword is also used to declare variables in a function which keep their value after the function has ended.
 - Static properties are accessed using the Scope Resolution Operator ( :: ) and cannot be accessed through the object operator ( -> ).
 
SYNTAX FOR STATIC PROPERTIES IN PHP :
<? php 
class testclass
{
 static $name="test";
 } 
echo testclass::$name; 
$var="testclass"; 
echo $var::$name;
?>
EXAMPLE FOR STATIC PROPERTIES IN PHP :
<?php
class  pi 
 {
    public static   $value  =   3.14159;
}
//  Get  static  property
echo  pi : : $value;
?>
OUTPUT :
3.14159