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POEchoing a PHP String
 

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    <p>Ok I've got PHP to successfully open and read the contents of a directory containing a number of images. I pass all of this data into an array, sort the results and finally iterate over all of the images so that it gives me a sting which I then echo onto the html page. In this string I set the css class for each div so that when the page renders each div is displayed correctly. </p> <p>My question is to do with the actual PHP setting the class of each div. Basically I have two classes that I apply to each div depending on what number they are. For example in the first horizontal row, the 1st to 3rd div gets the class of <code>.box</code> so as to set a <code>margin-right:10px;</code> and the 4th get's it's own class of <code>.box last</code> which sets <code>margin-right:0px;</code>.</p> <p>So what I wanted to ask was is there way of writing some logic to tell the PHP code to apply one class for the 1st to 3rd divs and a separate class for every 4th div for each row?Effectively the first three divs in the row get on class and the fourth div in each row gets another? </p> <pre><code>&lt;?php $dir = "images/"; $images = array(); $returnstr = ""; if ($handle = opendir($dir)) { while ( false !== ($entry = readdir($handle))) { if ($entry != "." &amp;&amp; $entry != ".."){ $images[] = $entry; } } closedir($handle); } natsort($images); $newArray = array_values($images); foreach ($newArray as $key =&gt; $value) { $returnstr .= '&lt;li class="box"&gt;'; $returnstr .= '&lt;a href="#" name="" class="thumb" id="' . $key . '"&gt;&lt;img src="'. $dir . '/' . $value . '"/&gt;&lt;/a&gt;'; $returnstr .= '&lt;/li&gt;'; } ?&gt; </code></pre> <p>This is the CSS for the 1st - 3rd divs... </p> <pre><code>.box { float: left; /*margin-right:10.5px;*/ margin-right:10px; /*width: 92px; height: 92px; */ width: 232.5px; height:150px; /*height: 232px; */ /*background-color: #999; border: 1px solid*/ margin-bottom: 10px; list-style: none; } </code></pre> <p>... and the CSS for every 4th div in the grid</p> <pre><code>.box.last { margin-right: 0px; } </code></pre> <p>This is the html I trying to atchieve.</p> <pre><code>&lt;li class="box"&gt; &lt;a href="#" name="cap1" class="thumb" id=""&gt;&lt;img src="images/1.jpg"/&gt;&lt;/a&gt; &lt;/li&gt; &lt;li class="box"&gt; &lt;a href="#" name="cap2" class="thumb" id=""&gt;&lt;img src="images/2.jpg"/&gt;&lt;/a&gt; &lt;/li&gt; &lt;li class="box"&gt; &lt;a href="#" name="cap3" class="thumb" id=""&gt;&lt;img src="images/3.jpg"/&gt;&lt;/a&gt; &lt;/li&gt; &lt;li class="box last"&gt; &lt;a href="#" name="cap4" class="thumb" id=""&gt;&lt;img src="images/4.jpg"/&gt;&lt;/a&gt; &lt;/li&gt; </code></pre>
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    1. CORemove everything that doesn't matter, tell us exactly but with less words, what you tried and how you failed. This question is way too long!
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    2. COThis can be effectively done on the client side, with no additional CSS, using `:nth-child()`.
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      1. USMadara Uchiha
    3. CO@MadaraUchiha I don't think op wants it for just the (n)th child. They want it for every nth child, right?
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