<?php
# Example #4 Interfaces with constants
interface a
{
const b = 'Interface constant';
}
// Prints: Interface constant
echo a::b . "\n";
// This will however not work because it's not allowed to
// override constants.
class b implements a
{
const g = 'Class constant';
// if trying to override a constant in implemented class
// Interface constantPHP Fatal error: Cannot inherit previously-inherited or override constant b from interface a in /media/linux-on/certification/php5.5zendcertification/more/phpcert/classesobjs/class-interface-4.php on line 16
public function getConstant()
{
echo a::b . ' in getConstant 22 ' . "\n";
}
}
echo a::b . "\n";
echo b::g . "\n";
echo b::b . "\n";
$oB = new b();
$oB->getConstant();
