What Is Static Keyword In Php?

1.	What Is Static Keyword In Php?
Answer» If we declare a METHOD or Class Property as static, then we can access that without use of instantiation of the class. Static Method are faster than NORMAL method. $this is not available within Static Method. Static properties cannot be accessed through the object(i.e arrow operator) Calling non-static METHODS with Scope RESOLUTION operator, generates an E_STRICT level warning. Static properties may only be initialized USING a literal or constant value. Static properties/Normal properties Can't be initialized using expressions value. class StaticClass { public static $staticValue = 'foo'; public function staticValue() { return self::$my_static; } } echo StaticClass::$staticValue; class StaticClass { public static $staticValue = 'foo'; public function staticValue() { return self::$my_static; } } echo StaticClass::$staticValue;

Answer»

If we declare a METHOD or Class Property as static, then we can access that without use of instantiation of the class.
Static Method are faster than NORMAL method.
$this is not available within Static Method.
Static properties cannot be accessed through the object(i.e arrow operator)
Calling non-static METHODS with Scope RESOLUTION operator, generates an E_STRICT level warning.
Static properties may only be initialized USING a literal or constant value.
Static properties/Normal properties Can't be initialized using expressions value.

class StaticClass

{

public static $staticValue = 'foo';

public function staticValue() {

return self::$my_static;

}

echo StaticClass::$staticValue;

class StaticClass

{

public static $staticValue = 'foo';

public function staticValue() {

return self::$my_static;

}

echo StaticClass::$staticValue;

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