is_odd for 2 columns via css

[erme]

Basically have this code to list files in a folder (currently pointing to root /)

 

I have added the is_odd function to try and get the files to be displayed in 2 columns via css.

 

The question is how can I get the odd and even colums to be nested in a <div id="left"></div> and<div id="right"></div> so that I can stye them?

 

<?php 

	function is_odd($number) {
		return $number & 1; // 0 = even, 1 = odd
	}	

	$dirname = "/"; 
	$count = 0;
	if ($dir = opendir($dirname)) {
		while(false !== ($file = readdir($dir))) {

		echo "<div id='left'>";

		$count = $count + 1;
			if (is_odd($count)) {

				if(($file != ".") and ($file != "..")) {
					echo "<a style='float:left;border:1px solid red;' href='$dirname$file'>$file</a><br />\n"; 
				}
			echo "</div>";
			}
		else {
			if(($file != ".") and ($file != "..")) { 
				echo "<a style='float:right;border:1px solid red;' href='$dirname$file'>$file</a><br />\n"; 
			}
		}
		} 
	closedir($dir); 
	} else { 
		echo "could not open dir: $dirname<br>"; 
	} 
	?> 

 

 

[kickstart]

Hi

 

Presume you mean something like this:-

 

<?php 

	function is_odd($number) {
		return $number & 1; // 0 = even, 1 = odd
	}	

	$dirname = "/"; 
	$count = 0;
	if ($dir = opendir($dirname)) 
	{
		while(false !== ($file = readdir($dir))) 
		{	
			if(($file != ".") and ($file != "..")) 
			{
				$count++;
				if (is_odd($count)) 
				{
					echo "<div class='leftDiv'><a style='float:left;border:1px solid red;' href='$dirname$file'>$file</a><br /></div>\n"; 
				}
				else 
				{
					echo "<div class='rightDiv'><a style='float:right;border:1px solid red;' href='$dirname$file'>$file</a><br /></div>\n"; 
				}
			}
		} 
		closedir($dir); 
	} 
	else 
	{ 
		echo "could not open dir: $dirname<br>"; 
	} 
?> 

 

However I would think you would also want a div to surround each row. This would be easy to add (add an open div to the first echo and a close div to the 2nd echo), but you would need to add a close div outside the loop when there were an uneven number of items.

 

Personally I would probably use modulus 2 (ie % 2) and to determine if it was an odd or even number. Makes it simple to change to cope with 3 or more columns.

 

All the best

 

Keith