5tarl0rd

<?php



//error_reporting(E_ALL); // only for testing



class MyPagina {

	

	var $sql;

	var $result;

	var $outstanding_rows = false;

	

	var $get_var;

	var $rows_on_page;



	var $max_rows;

	

	// constructor

	function MyPagina($rows = 0) {

		$this->connect_db();

		$this->max_rows = $rows;

		$this->get_var = QS_VAR;

		$this->rows_on_page = NUM_ROWS;



	}

	// sets the current page number

	function set_page() {

		$page = (isset($_REQUEST[$this->get_var]) && $_REQUEST[$this->get_var] != "") ? $_REQUEST[$this->get_var] : 0;

		return $page;

	}

	// gets the total number of records 

	function get_total_rows() {

		$tmp_result = mysql_query($this->sql);

		$all_rows = mysql_num_rows($tmp_result);

		if (!empty($this->max_rows) && $all_rows > $this->max_rows) {

			$all_rows = $this->max_rows;

			$this->outstanding_rows = true;

		}

		mysql_free_result($tmp_result);

		return $all_rows;

	}

	// database connection

	function connect_db() {

		$conn_str = mysql_connect(DB_SERVER, DB_USER, DB_PASSWORD);

		mysql_select_db(DB_NAME, $conn_str);

	}

	// get the totale number of result pages

	function get_num_pages() {

		$number_pages = ceil($this->get_total_rows() / $this->rows_on_page);

		return $number_pages;

	}

	// returns the records for the current page

	function get_page_result() {

		$start = $this->set_page() * $this->rows_on_page;

		$page_sql = sprintf("%s LIMIT %s, %s", $this->sql, $start, $this->rows_on_page);

		$this->result = mysql_query($page_sql);

		return $this->result;

	}

	// get the number of rows on the current page

	function get_page_num_rows() {

		$num_rows = mysql_num_rows($this->result);

		return $num_rows;

	}

	// free the database result

	function free_page_result() {

		mysql_free_result($this->result);

	}

	// function to handle other querystring than the page variable

	function rebuild_qs($curr_var) {

		if (!empty($_SERVER['QUERY_STRING'])) {

			$parts = explode("&", $_SERVER['QUERY_STRING']);

			$newParts = array();

			foreach ($parts as $val) {

				if (stristr($val, $curr_var) == false)  {

					array_push($newParts, $val);

				}

			}

			if (count($newParts) != 0) {

				$qs = "&".implode("&", $newParts);

			} else {

				return false;

			}

			return $qs; // this is your new created query string

		} else {

			return false;

		}

	} 

	// this method will return the navigation links for the conplete recordset

	function navigation($separator = " | ", $css_current = "", $back_forward = false, $use_images = false) {

		$max_links = NUM_LINKS;

		$curr_pages = $this->set_page(); 

		$all_pages = $this->get_num_pages() - 1;

		$var = $this->get_var;

		$navi_string = "";

		if (!$back_forward) {

			$max_links = ($max_links < 2) ? 2 : $max_links;

		}

		if ($curr_pages <= $all_pages && $curr_pages >= 0) {

			if ($curr_pages > ceil($max_links/2)) {

				$start = ($curr_pages - ceil($max_links/2) > 0) ? $curr_pages - ceil($max_links/2) : 1;

				$end = $curr_pages + ceil($max_links/2);

				if ($end >= $all_pages) {

					$end = $all_pages + 1;

					$start = ($all_pages - ($max_links - 1) > 0) ? $all_pages  - ($max_links - 1) : 1;

				}

			} else {

				$start = 0;

				$end = ($all_pages >= $max_links) ? $max_links : $all_pages + 1;

			}

			if($all_pages >= 1) {

				$forward = $curr_pages + 1;

				$backward = $curr_pages - 1;

				// the text two labels are new sinds ver 1.02

				$lbl_forward = $this->build_back_or_forward("forward", $use_images);

				$lbl_backward = $this->build_back_or_forward("backward", $use_images);

				$navi_string = ($curr_pages > 0) ? "<a href=\"".$_SERVER['PHP_SELF']."?".$var."=".$backward.$this->rebuild_qs($var)."\">".$lbl_backward."</a>&nbsp;" : $lbl_backward."&nbsp;";

				if (!$back_forward) {

					for($a = $start + 1; $a <= $end; $a++){

						$theNext = $a - 1; // because a array start with 0

						if ($theNext != $curr_pages) 

						{

							

								$navi_string .= "<a href=\"".$_SERVER['PHP_SELF']."?".$var."=".$theNext.$this->rebuild_qs($var)."\">";

							

							

							$navi_string .= $a."</a>";

							$navi_string .= ($theNext < ($end - 1)) ? $separator : "";

						} 

						else 

						{

							$navi_string .= ($css_current != "") ? "<span class=\"".$css_current."\">".$a."</span>" : $a;

							$navi_string .= ($theNext < ($end - 1)) ? $separator : "";

						}

					}

				}

				

					$navi_string .= ($curr_pages < $all_pages) ? "&nbsp;<a href=\"".$_SERVER['PHP_SELF']."?".$var."=".$forward.$this->rebuild_qs($var)."\">".$lbl_forward."</a>" : "&nbsp;".$lbl_forward;

					

			}

		}

		return $navi_string;

	}

	// function to create the back/forward elements; $what = forward or backward

	// type = text or img

	function build_back_or_forward($what, $img = false) {

		$label['text']['forward'] = STR_FWD;

		$label['text']['backward'] = STR_BWD;

		$label['img']['forward'] = IMG_FWD;

		$label['img']['backward'] = IMG_BWD;

		if ($img) {

			$img_info = getimagesize($label['img'][$what]);

			$label = "<img src=\"".$label['img'][$what]."\" ".$img_info[3]." border=\"0\">";

		} else {

			$label = $label['text'][$what];

		}

		return $label;

	}

	// this info will tell the visitor which number of records are shown on the current page

	function page_info($str = "Result: %d - %d of %d") {

		$first_rec_no = ($this->set_page() * $this->rows_on_page) + 1;

		$last_rec_no = $first_rec_no + $this->rows_on_page - 1;

		$last_rec_no = ($last_rec_no > $this->get_total_rows()) ? $this->get_total_rows() : $last_rec_no;

		$info = sprintf($str, $first_rec_no, $last_rec_no, $this->get_total_rows());

		return $info;

	}

	// simple method to show only the page back and forward link.

	function back_forward_link($images = false) {



		$simple_links = $this->navigation(" ", "", true, $images);

		return $simple_links;

	}

}

?>