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POphp data structure - xml or tree?
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  1. POphp data structure - xml or tree?
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    copied!<p>i want to write a generalized function that can output something like this. </p> <pre><code>&lt;span class="side_title"&gt;By Collection&lt;/span&gt; &lt;ul class="menu"&gt; &lt;li class="top"&gt; &lt;a class="top_menu" href="#url"&gt;home&lt;/a&gt; &lt;/li&gt; &lt;li class="sub"&gt; &lt;a href="#"&gt;collectionA&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="../index.html"&gt;collectionA-1&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#url"&gt;collectionA-2&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="sub"&gt; &lt;a href="#"&gt;collectionB&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="#url"&gt;collectionB-1&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="top"&gt;&lt;a href="#url"&gt;CollectionE&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;span class="side_title"&gt;By Functions&lt;/span&gt; &lt;ul class="menu"&gt; &lt;li class="top"&gt; &lt;a class="top_menu" href="#url"&gt;home&lt;/a&gt; &lt;/li&gt; &lt;li class="sub"&gt; &lt;a href="#"&gt;functionA&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="../index.html"&gt;functionA-1&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#url"&gt;functionA-2&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="sub"&gt; &lt;a href="#"&gt;functionB&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="#url"&gt;functionB-1&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#url"&gt;functionB-2&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="top"&gt;&lt;a href="#url"&gt;functionE&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; </code></pre> <p>but the problem is i can't find a data structure to represent this structure, i tried the follwoing(using array - where the key is link's content, value is the address. and recursion): </p> <pre><code>$a = array ( "By collection" =&gt; '', 'Base' =&gt; 'thisBase', "expand" =&gt; array ( 'Home' =&gt; 'home', 'collectionA' =&gt; 'collectionA', 'expand' =&gt; array ( 'collectiona-1' =&gt; 'collectiona-1', 'collectiona-2' =&gt; 'collectiona-2' ), 'collectionB' =&gt; 'collectionb', 'expand' =&gt; array ( 'collectionb-1' =&gt; 'collectionb-1', 'collectionb-2' =&gt; 'collectionb-2' ), 'collectionB' =&gt; 'collectionb', 'expand' =&gt; array ( 'collectionc-1' =&gt; 'collectionc-1', 'collectionc-2' =&gt; 'collectionc-2' ), ), "by Function" =&gt; '' ); function expand($a=NULL) { foreach ($a as $key =&gt; $value) { if ($value == '') { echo '&lt;span class="side_title"&gt;'.$key.'&lt;/span&gt;'; echo '&lt;ul class="menu"&gt;'; } elseif (is_array($value)) { echo '&lt;ul class="sub_menu"&gt;'; expand($value); } else { echo '&lt;li&gt;&lt;a href="'.$value.'&gt;'.$key.'&lt;/a&gt;&lt;/li&gt;'; } } echo '&lt;/ul&gt;'; } print_r($a); expand($a); </code></pre> <p>i thought about using xml/tree to represent it, but the data structure is pass between different function, so i thought it will be to much effort, so i want to know what's wrong with this? or is there better way?</p>
 

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