如何在菜单中使用PHP变量

Question

I'm not a PHP guy, however I believe PHP can be used to accomplish this.

Basically I'm using the same absolute path in my main menu + /about, /blog etc so figured well my files are already PHP why not use a Var to do this :) (I come from a Flash AS background)

Testing link: http://s433108212.onlinehome.us/

This is what I've tried below, but to no avail :(

<div id="nav_bar">

<?php $athenasweburl = 'http://s433108212.onlinehome.us/'; ?>

<ul class="nav">
    <li class="<?php echo $page === 'home' ? "selected" : "" ?>"><a href="<?php $athenasweburl; ?>">Home</a></li>
    <li class="<?php echo $page === 'about' ? "selected" : "" ?>"><a href="<?php echo ($athenasweburl+'about'); ?>">About</a></li>
    <li class="<?php echo $page === 'blog' ? "selected" : "" ?>"><a href="<?php $athenasweburl+'blog'; ?>">Blog</a></li>
    <li class="<?php echo $page === 'book' ? "selected" : "" ?>"><a href="<?php $athenasweburl+'book'; ?>">Book</a></li>
    <li class="<?php echo $page === 'events' ? "selected" : "" ?>"><a href="<?php $athenasweburl+'events'; ?>">Events</a></li>
    <li class="<?php echo $page === 'services' ? "selected" : "" ?>"><a href="<?php $athenasweburl+'services'; ?>">Services</a></li>
    <li class="<?php echo $page === 'contact' ? "selected" : "" ?>"><a href="#dialog" name="modal">Contact</a></li>
    <li class="search"><input type="text" onfocus="if(this.value == 'Search') { this.value = ''; }" value="Search" /></li>
    <li class="search_btn"><a href="#" title="Lets find it!"><div class="search_go">Go</div></a></li>
</ul>

thoughts anyone?

Answer 1

You don't output the URL. Note the addition of echo in the second stanza.

<li class="<?php echo $page === 'home' ? "selected" : "" ?>"><a href="<?php echo $athenasweburl; ?>">Home</a></li>

And concatenation uses . , not + .

<li class="<?php echo $page === 'about' ? "selected" : "" ?>"><a href="<?php echo $athenasweburl . 'about'; ?>">About</a></li>

Answer 2

In PHP + adds numbers together.. What you looking for is gluing strings.. Replace the + signs with . (dot), and an echo in front of each string, and it should work.

<div id="nav_bar">

<?php
$menu = array("home","about","blog","book","events","services");
function echoListItem($item){
    global $page;
    $url = 'http://s433108212.onlinehome.us/';
    if($item != "home") $url .= $item;
    $selected = $item == $page ? 'selected' : '';
    echo '<li class="'.$selected.'"><a href="'.$url.'">'.ucfirst($item).'</a></li>';
}
?>

<ul class="nav">
    <?php array_walk($menu, 'echoListItem'); ?>
    <li class="<?php echo $page === "contact" ? "selected" : "" ?>"><a href="#dialog" name="modal">Contact</a></li>
    <li class="search"><input type="text" onfocus="if(this.value == 'Search') { this.value = ''; }" value="Search" /></li>
    <li class="search_btn"><a href="#" title="Lets find it!"><div class="search_go">Go</div></a></li>
</ul>

This should do just about the same!

Answer 3

PHP uses a dot notation "." To concatenate variables and strings etc. To concatenate the string "blog" to $athenasweburl, you would use

  $athenasweburl = $athenasweburl."blog/";
  echo $athenasweburl; //http://s433108212.onlinehome.us/blog/

Hope that helps.

Answer 4

I've hit a similar issue not that long ago.

Assuming you have $page defined somewhere else as well...

<div id="nav_bar">

<?php $athenasweburl = 'http://s433108212.onlinehome.us/'; ?>

<ul class="nav">
    <li class="<?php echo ($page === "home" ? "selected" : "") ?>"><a href="<?php $athenasweburl; ?>">Home</a></li>
    <li class="<?php echo ($page === "about" ? "selected" : "") ?>"><a href="<?php echo ($athenasweburl+'about'); ?>">About</a></li>
    <li class="<?php echo ($page === "blog" ? "selected" : "") ?>"><a href="<?php $athenasweburl.'blog'; ?>">Blog</a></li>
    <li class="<?php echo ($page === "book" ? "selected" : "") ?>"><a href="<?php $athenasweburl.'book'; ?>">Book</a></li>
    <li class="<?php echo ($page === "events" ? "selected" : "") ?>"><a href="<?php $athenasweburl.'events'; ?>">Events</a></li>
    <li class="<?php echo ($page === "services" ? "selected" : "") ?>"><a href="<?php $athenasweburl.'services'; ?>">Services</a></li>
    <li class="<?php echo $page === "contact" ? "selected" : "") ?>"><a href="#dialog" name="modal">Contact</a></li>
    <li class="search"><input type="text" onfocus="if(this.value == 'Search') { this.value = ''; }" value="Search" /></li>
    <li class="search_btn"><a href="#" title="Lets find it!"><div class="search_go">Go</div></a></li>
</ul>