Online PHP editor | output for R2hos

@ 2015-09-23T12:21:47Z

<?php
class Ancestor {
    public $publicVar = "ancestor's public var\n";
    static $staticVar = "ancestor's static var\n";
    function publicMethod(){
        echo "ancestor's publicMethod ";
        // is $this is set up
        if(isset($this)){
            echo "is in object context\n";
        }else{
            echo "is in static context\n";
        }
    }
    
    static function staticMethod(){
        echo "ancestor's staticMethod ";
        // is $this is set up
        if(isset($this)){
            echo "in object context\n";
        }else{
            echo "in static context\n";
        }
    }
}

class Descendant extends Ancestor {
    public $publicVar = "descendant's public var\n";
    static $staticVar = "descendant's static var\n";
    
    function publicMethod(){
        echo "descendant's publicMethod ";
        // is $this is set up
        if(isset($this)){
            echo "in object context\n";
        }else{
            echo "in static context\n";
        }
    }
    
    static function staticMethod(){
        echo "descendant's staticMethod ";
        // is $this is set up
        if(isset($this)){
            echo "in object context\n";
        }else{
            echo "in static context\n";
        }
    }
    
    function callToPropertiesFromPublicContext(){
        echo $this->publicVar; // descendant's public var
        echo $this->staticVar; // fatal error: Access to undeclared static property: Descendant::$publicVar
        echo $this::$publicVar; // 
        echo $this::$staticVar;
        echo Descendant::$publicVar;
        echo Descendant::$staticVar;
    }
    static function callToPropertiesFromStaticContext(){
        echo Descendant::$publicVar;
        echo Descendant::$staticVar;
    }
}

$ancestor = new Ancestor();
$descendant = new Descendant();

echo "\n1. From Outside Of An Instance/Class:\n"; 
    echo "\n----- 1.1 access to properties -----\n"; 
        echo $descendant->publicVar; // descendant's public var
        //echo $descendant->staticVar; // "" + notice: Undefined property: Descendant::$staticVar
        //echo $descendant::$publicVar; // fatal error: Access to undeclared static property: Descendant::$publicVar 
        echo $descendant::$staticVar; // descendant's static var
        
        //echo Descendant::$publicVar; // fatal error: Access to undeclared static property
        echo Descendant::$staticVar; // descendant's static var
    
    echo "\n----- 1.2 access to methods -----\n";
        $descendant->publicMethod(); // descendant's publicMethod in object context
        $descendant->staticMethod(); // descendant's staticMethod in static context
        $descendant::publicMethod(); // descendant's publicMethod in static context
        $descendant::staticMethod(); // descendant's staticMethod in static context
        
        Descendant::publicMethod(); // descendant's publicMethod in static context
        Descendant::staticMethod(); // descendant's staticMethod in static context

echo "\n2. From Inside Of An Instance/Class:\n"; 
    echo "\n----- 2.1 access to properties from public context -----\n"; 
        $descendant->callToPropertiesFromPublicContext();
    echo "\n----- 2.1 access to properties from static context -----\n"; 
        $descendant->callToPropertiesFromStaticContext();

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: 1. From Outside Of An Instance/Class: ----- 1.1 access to properties ----- descendant's public var descendant's static var descendant's static var ----- 1.2 access to methods ----- descendant's publicMethod in object context descendant's staticMethod in static context Fatal error: Uncaught Error: Non-static method Descendant::publicMethod() cannot be called statically in /in/R2hos:80 Stack trace: #0 {main} thrown in /in/R2hos on line 80
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: 1. From Outside Of An Instance/Class: ----- 1.1 access to properties ----- descendant's public var descendant's static var descendant's static var ----- 1.2 access to methods ----- descendant's publicMethod in object context descendant's staticMethod in static context Deprecated: Non-static method Descendant::publicMethod() should not be called statically in /in/R2hos on line 80 descendant's publicMethod in static context descendant's staticMethod in static context Deprecated: Non-static method Descendant::publicMethod() should not be called statically in /in/R2hos on line 83 descendant's publicMethod in static context descendant's staticMethod in static context 2. From Inside Of An Instance/Class: ----- 2.1 access to properties from public context ----- descendant's public var Notice: Accessing static property Descendant::$staticVar as non static in /in/R2hos on line 52 Notice: Undefined property: Descendant::$staticVar in /in/R2hos on line 52 Fatal error: Uncaught Error: Access to undeclared static property: Descendant::$publicVar in /in/R2hos:53 Stack trace: #0 /in/R2hos(88): Descendant->callToPropertiesFromPublicContext() #1 {main} thrown in /in/R2hos on line 53
Process exited with code 255.
Output for 7.3.32 - 7.3.33: 1. From Outside Of An Instance/Class: ----- 1.1 access to properties ----- descendant's public var descendant's static var descendant's static var ----- 1.2 access to methods ----- descendant's publicMethod in object context descendant's staticMethod in static context descendant's publicMethod in static context descendant's staticMethod in static context descendant's publicMethod in static context descendant's staticMethod in static context 2. From Inside Of An Instance/Class: ----- 2.1 access to properties from public context ----- descendant's public var Fatal error: Uncaught Error: Access to undeclared static property: Descendant::$publicVar in /in/R2hos:53 Stack trace: #0 /in/R2hos(88): Descendant->callToPropertiesFromPublicContext() #1 {main} thrown in /in/R2hos on line 53
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: 1. From Outside Of An Instance/Class: ----- 1.1 access to properties ----- descendant's public var descendant's static var descendant's static var ----- 1.2 access to methods ----- descendant's publicMethod in object context descendant's staticMethod in static context Strict Standards: Non-static method Descendant::publicMethod() should not be called statically in /in/R2hos on line 80 descendant's publicMethod in static context descendant's staticMethod in static context Strict Standards: Non-static method Descendant::publicMethod() should not be called statically in /in/R2hos on line 83 descendant's publicMethod in static context descendant's staticMethod in static context 2. From Inside Of An Instance/Class: ----- 2.1 access to properties from public context ----- descendant's public var Strict Standards: Accessing static property Descendant::$staticVar as non static in /in/R2hos on line 52 Notice: Undefined property: Descendant::$staticVar in /in/R2hos on line 52 Fatal error: Access to undeclared static property: Descendant::$publicVar in /in/R2hos on line 53
Process exited with code 255.

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