Book-page-217

<?php

namespace DatabasePostGRE{
    const CONNECTION_STATUS = 1;

    class Connection {

    }

    function connect(){
        echo "<br>Namespace : ". __NAMESPACE__;
    }

    \DatabaseMySQL\connect(); //call connect() from DatabaseMySQL
    connect();               // call connect() from DatabasePostGRE

}

namespace DatabaseMySQL{
    const CONNECTION_STATUS = 1;

    class Connection {

    }

    function connect(){
        echo "<br>Namespace : ". __NAMESPACE__;
    }
}

?>