3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2015-09-28T09:10:21Z

<?php

namespace {
   define('true', false); // Notice: Constant true already defined
   var_dump(true === false); //false
}
 
namespace Knp {
    define('Knp\\true', false);
    var_dump(true === false); // true in php5
}

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
define: documentation ( source)

preferences:dark modelive preview

45.56 ms | 402 KiB | 5 Q