Online PHP editor | output for 5tMZ9

@ 2018-07-03T19:36:21Z

<?php
 
interface I1
{
    public function F1();
 
    public static function FS2();
 
    public static function FS3();
}
 
abstract class C1 implements I1
{
    public function __construct()
    {
        static::F1();
    }
 
    public static function FS2()
    {
        static::FS3();
    }
}
 
 
abstract class C2 extends C1
{
 
    public function F1()
    {
        echo __CLASS__;
    }
 
    public final static function FS3()
    {
        echo __CLASS__;
    }
}
 
 
final class C3 extends C2
{
 
    public function __construct()
    {
        parent::__construct();
        self::FS2();
    }
 
    public function F1()
    {
        echo __CLASS__;
    }
}

class C4 extends C1
{
    
    public function F1() {
        
    }
 
    
}
 
//$_class = new C2();
C4::FS2();

Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Fatal error: Class C4 contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (I1::FS3) in /in/5tMZ9 on line 56
Process exited with code 255.
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Class C4 contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (I1::FS3) in /in/5tMZ9 on line 56
Process exited with code 255.

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