Online PHP editor | output for hI980

@ 2015-12-29T23:48:04Z

<?php

class ABase {
    const I_AM_CONSTANT = 'shazam';
    private static $instance = null;
    
    public function getInstance()
    {
        if(self::$instance == null) {
            self::$instance = new ABase();
        }
    }
    
    private function __construct() {
        
    }
}

class B extends ABase {
    const I_AM_CONSTANT = 'kaboom!';
    
    private static $instance = null;
    private function __construct() {
        
    }
}

$bInstance = B::getInstance();
echo B::I_AM_CONSTANT;

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught Error: Non-static method ABase::getInstance() cannot be called statically in /in/hI980:28 Stack trace: #0 {main} thrown in /in/hI980 on line 28
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Deprecated: Non-static method ABase::getInstance() should not be called statically in /in/hI980 on line 28 kaboom!
Output for 7.3.32 - 7.3.33: kaboom!
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.21: Strict Standards: Non-static method ABase::getInstance() should not be called statically in /in/hI980 on line 28 kaboom!

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