add active class

根据URI添加菜单的active css class

Active item item in menu:

<?php
function aim($page) {
    if(stristr($_SERVER['REQUEST_URI'], $page)) {
        return ' class="active"';
    }
}
?>

usage:

<style type="text/css">
.active {color: red;}
</style>

<?php
print '<a href="http://example.com/page/hello-world/"'. aim('hello-world') .'>HW</a>';
?>