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<?php
/* Inheritance test. Pretty nifty if I do say so myself! */
class foo {
var $a;
var $b;
function display() {
echo "This is class foo\n";
echo "a = ".$this->a."\n";
echo "b = ".$this->b."\n";
}
function mul() {
return $this->a*$this->b;
}
};
class bar extends foo {
var $c;
function display() { /* alternative display function for class bar */
echo "This is class bar\n";
echo "a = ".$this->a."\n";
echo "b = ".$this->b."\n";
echo "c = ".$this->c."\n";
}
};
$foo1 = new foo;
$foo1->a = 2;
$foo1->b = 5;
$foo1->display();
echo $foo1->mul()."\n";
echo "-----\n";
$bar1 = new bar;
$bar1->a = 4;
$bar1->b = 3;
$bar1->c = 12;
$bar1->display();
echo $bar1->mul()."\n";
?>
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