085-PHP文件引用include（二）

01.php

<?php

function foo()
{
    global $color;

    include '02.php';

    echo "A $color $fruit";
}

foo();                    // A green apple
echo "A $color $fruit";   // A green

?>

02.php

<?php

    $color = 'green';
    $fruit = 'apple';

?>