Pagination class. Was written for a specific system so it could/should be updated to use a constructor instead of setVars or switched to static methods

Pagination

<?php
class Pagination {
	private $total_items = 0;
	private $current_number = 0;
	private $per_page = 25;
	
	/**
	* sets up the variables
	*/
	public function setVars($total, $current = 0, $per_page = 25) {
		$this->total_items = $total;
		$this->current_number = $current/$per_page;
		$this->per_page = $per_page;
	}
	
	/**
	* display pagination
	*/
	public function display($url, $total = 0, $current = 0, $per_page = 25) {
		if (!empty($total) || !empty($current)) {
			$this->setVars($total, $current, $per_page);
		}
		
		echo $this->generate($url);
		
		return;
	}
	
	/**
	* generates pagination. returns a string
	*/
	public function generate($url, $total = 0, $current = 0, $per_page = 25) {
		if (!empty($total) || !empty($current) || !empty($per_page)) {
			$this->setVars($total, $current, $per_page);
		}
		
		// do we need a ? or & for the url
		$url .= (strpos($url, '?') === false) ? '?start=' : '&start=';
				
		// calculate how many pages
		$total_pages = ceil($this->total_items / $this->per_page);
		
		$output = array();
		$before = $after = '';
		
		// if number is greater than 0 then show first link
		if ($this->current_number > 0) {
			$before .= '<a href="' . $url . '0">&lt;&lt; First</a>&nbsp;&nbsp;';
		}
		
		// if number is great than 1 then show first and prev link
		if ($this->current_number > 1) {
			$before .= '<a href="' . $url . (($this->current_number - 1) * $this->per_page) . '">&lt; Prev</a>&nbsp;&nbsp;';
		}
		
		// if the number is great than 3 then it is cutting some off so show ...
		// also set the starting point for looping through the pages
		if ($this->current_number > 3) {
			$before .= '...&nbsp;&nbsp;';
			$i = $this->current_number - 3;
		} else {
			$i = 0;
		}
		
		// loop through the pages
		for(; $i < $total_pages; $i++) {
			$output[] = '<a href="' . $url . ($i * $this->per_page) . '"' . (($i == $this->current_number) ? ' class="selected"' : '') . '>' . ($i + 1) . '</a>';
	
			// if the current number + 2 is less than the current number then break out of the loop. Enough pages have been shown.
			if ($this->current_number + 2 < $i) {
				break;
			}
		}
		
		// if the current page plus 4 is less than the total pages then show ...
		if ($this->current_number + 4 < $total_pages) {
			$after .= '&nbsp;&nbsp;...';
		}
		
		// if number is less than total pages minus one then show next link
		if ($this->current_number <  $total_pages - 2) {
			$after .= '&nbsp;&nbsp;<a href="' . $url . (($this->current_number + 1) * $this->per_page) . '">Next &gt;</a>';
		}
		
		// if number is less than the total number of pages then show last link
		if ($this->current_number < $total_pages - 1) {
			$after .= '&nbsp;&nbsp;<a href="' . $url . (($total_pages - 1) * $this->per_page) . '">Last &gt;&gt;</a>';
		}
		
		return 'Page: ' . $before . implode(',&nbsp;&nbsp;', $output) . $after;
	}
}
?>