Long article automatic/manual page-type

<?php
/*
* Long article Pagination class
* @package Cutpage
* @author yytcpt (no shadow)
* @version 2008-03-27
* @copyrigth http://www.d5s.cn/
*/
Class cutpage{
var $pagestr; The content of the Shard
var $pagearr; The array format of the text being slit
var $sum _word; The total number of words (Chinese characters in the UTF-8 format are also included)
var $sum _page; Total pages
var $page _word; How many words a page
var $cut _tag; Automatic page Breaks
var $cut _custom; Manual page Breaks
var $ipage; The number of pages in the current Shard, page
var $url;
function __construct () {
$this->page_word = 1000;
$this->cut_tag = Array ("</table>", "</div>", "</p>", "<br/>", "".) ", "。 ", ".", "！ ", "......", "？ ", ",");
$this->cut_custom = "{nextpage}";
$tmp _page = intval (Trim ($_get["ipage"]);
$this->ipage = $tmp _page>1 $tmp _page:1;
}
Total number of words in statistics
function Get_page_word () {
$this->sum_word = $this->strlen_utf8 ($this->pagestr);
return $this->sum_word;
}
/* Statistics UTF-8 encoded character length
* One Chinese, one English all for one word
*/
function Strlen_utf8 ($STR) {
$i = 0;
$count = 0;
$len = strlen ($STR);
while ($i < $len) {
$CHR = Ord ($str [$i]);
$count + +;
$i + +;
if ($i >= $len)
Break
if ($CHR & 0x80) {
$CHR <<= 1;
while ($CHR & 0x80) {
$i + +;
$CHR <<= 1;
}
}
}
return $count;
}
Set up automatic page-splitting symbols
function Set_cut_tag ($tag _arr=array ()) {
$this->cut_tag = $tag _arr;
}
Set manual page Breaks
function Set_cut_custom ($cut _str) {
$this->cut_custom = $cut _str;
}
function Show_cpage ($ipage =0) {
$this->cut_str ();
$ipage = $ipage? $ipage: $this->ipage;
return $this->pagearr[$ipage];
}
function Cut_str () {
$str _len_word = strlen ($this->pagestr); Gets the total number of characters obtained using strlen
$i = 0;
if ($str _len_word<= $this->page_word) {//If the total word count is less than one page display words
$page _arr[$i] = $this->pagestr;
}else{
if (Strpos ($this->pagestr, $this->cut_custom)) {
$page _arr = explode ($this->cut_custom, $this->pagestr);
}else{
$str _first = substr ($this->pagestr, 0, $this->page_word); 0-page_word text Cutstr as a function in Func.global
foreach ($this->cut_tag as $v) {
$cut _start = Strrpos ($str _first, $v); Find the location of the first page break in reverse
if ($cut _start) {
$page _arr[$i + +] = substr ($this->pagestr, 0, $cut _start). $v;
$cut _start = $cut _start + strlen ($v);
Break
}
}
if ($cut _start+ $this->page_word) >= $str _len_word) {//If more than the total number of words
$page _arr[$i + +] = substr ($this->pagestr, $cut _start, $this->page_word);
}else{
while (($cut _start+ $this->page_word) < $str _len_word) {
foreach ($this->cut_tag as $v) {
$str _tmp = substr ($this->pagestr, $cut _start, $this->page_word); Page_word characters after the word Cut_start
$cut _tmp = Strrpos ($str _tmp, $v); Find out the position of the first page break from the Cut_start word, page_word, and backwards.
if ($cut _tmp) {
$page _arr[$i + +] = substr ($str _tmp, 0, $cut _tmp). $v;
$cut _start = $cut _start + $cut _tmp + strlen ($v);
Break
}
}
}
if ($cut _start+ $this->page_word) > $str _len_word) {
$page _arr[$i + +] = substr ($this->pagestr, $cut _start, $this->page_word);
}
}
}
}
$this->sum_page = count ($page _arr); Total pages
$this->pagearr = $page _arr;
}
Displays the previous one, the next one
function Show_prv_next () {
$this->set_url ();
if ($this->sum_page>1 and $this->ipage< $this->sum_page) {
$str = "<a href= '". $this->url. ($this->ipage+1). "' > next page </a> ";
}
if ($this->sum_page>1 and $this->ipage>1) {
$str. = "<a href= '". $this->url. ($this->ipage-1). "' > Prev </a> ";
}
return $str;
}
function Show_page_select () {
if ($this->sum_page>1) {
$str = "&nbsp; <select onchange=\ "location.href=this.options[this.selectedindex].value\" >;
For ($i =1 $i <= $this->sum_page; $i + +) {
$str. = "<option value= '". $this->url. $i. "' ". ($this->ipage) = = $i? "Selected= ' selected '": "" ". > ". $i." Page </option> ";
}
$str. = "</select>";
}
return $str;
}
function Show_page_select_wap () {
if ($this->sum_page>1) {
$str = "<select ivalue= '". ($this->ipage-1). "' > ";
For ($i =1 $i <= $this->sum_page; $i + +) {
$str. = "<option onpick= '". $this->url. $i. "' > ". $i." Section </option> ";
}
$str. = "</select>";
}
return $str;
}
function Set_url () {
Parse_str ($_server["query_string"), $arr _url);
unset ($arr _url["IPage"]);
if (Empty ($arr _url)) {
$str = "ipage=";
}else{
$str = Http_build_query ($arr _url). " &ipage= ";
}
$this->url = "http://". $_server["Http_host"].$_server["Php_self"]. $STR;
}
}
?>

If you have added new features, or have improved, please share with us.

Long article pagination class, you can specify a page break manually, or you can have the program automatically pagination.

Instance code: Please test with UTF-8 file encoding.

code: <?php
     Include (' cutpage.php ');
    header ("Content-type:text/html;charset=utf-8");//Set page encoding
     //custom Long article string, which can contain HTML code, if there is a manual page break {nextpage} in the string, prioritize page breaks by manual page break
     $content = file_get_ Contents (' Text.txt ');
     $ipage = $_get["IPage"]? Intval ($_get["IPage"]): 1;
     $CP = new Cutpage ();
     $CP->pagestr = $content;
     $CP->cut_str ();
    echo $CP->pagearr[$ipage-1]. "     echo $CP->show_prv_next ();
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