Non Static Method Called Statically

It is not possible to call a non-static method statically, and now, it is also not possible to call non-statically a static method.

The static syntax is still valid with expression like parent::__construct. Be aware that a call such as self::foo also checks if the target method is static.

PHP code

<?php

class Foo {
    public function bar() {}

    static function foo() {
     self::bar();
    }
}
//Non-static method Foo::bar() cannot be called statically (line 10)
Foo::bar();

//Non-static method Foo::bar() cannot be called statically (line 6)
Foo::foo();

?>

Before

PHP Deprecated:  Non-static method Foo::bar() should not be called statically in /codes/nonStaticMethodCalledStatically.php on line 6

Deprecated: Non-static method Foo::bar() should not be called statically in /codes/nonStaticMethodCalledStatically.php on line 6

After

PHP Fatal error:  Uncaught Error: Non-static method Foo::bar() cannot be called statically in /codes/nonStaticMethodCalledStatically.php:6
Stack trace:
#0 {main}
  thrown in /codes/nonStaticMethodCalledStatically.php on line 6

Fatal error: Uncaught Error: Non-static method Foo::bar() cannot be called statically in /codes/nonStaticMethodCalledStatically.php:6
Stack trace:
#0 {main}
  thrown in /codes/nonStaticMethodCalledStatically.php on line 6

PHP version change

This behavior was deprecated in 7.0

This behavior changed in 8.0

Error Messages

• Non-static method Foo::bar() cannot be called statically