PHP Long article pagination usage example

Content.txt

This file contains content, if you are combined with the MySQL database, as long as you replace this sentence with the content of your database.

index.php file

<link rel= "stylesheet" type= "Text/css" href= "Http:///jquery/css/common.css"/>


<style type= "Text/css" >


. demo{width:80%;margin:50px auto 10px auto;padding:10px;}


. Demo P{line-height:30px;text-indent:2em}


. Demo h3{font-size:24px;text-align:center;padding:10px}


@media (max-width:480px) {


. demo{width:360px;margin:50px auto 10px auto;padding:10px;}


. Demo img{width:90%}


. Demo H3{font-size:1.5em;line-height:1.9em}


}


. pages{text-align:center;border-top:1px solid #d3d3d3; margin-top:10px padding-top:10px}


. pages a{display:inline-block;margin:4px;padding:4px 8px;background: #f9f9f9; border:1px solid #d9d9d9}


. pages A.cur{cursor:default;background: #d3d3d3; color: #434343}


. Pages A.cur:hover{text-decoration:none}


</style>

<div class= "Head" >


<div class= "Head_inner clearfix" >


<ul id= "NAV" >


<li><a href= "http://" > Home </a></li>


<li><a href= "http:///templates" > site templates </a></li>


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<li><a href= "http:///php" >PHP</a></li>


<li><a href= "Http:///site" > Featured URL </a></li>


</ul>


<a class= "logo" href= "http://" ><img src= "http:///Public/images/logo.jpg" alt= "material Fire logo"/></a>


</div>


</div>


<div class= "Container" >


<div class= "Demo" >


<H2 class= "title" ><a href= "http:///js/639.html" > Tutorial: Php long article pagination tutorial and demo </a></h2>


<h3> Tens of millions of people will not work in the next 10 years? </h3>


<?php


Include (' page.class.php ');


A custom long article string that can contain HTML code, and if a manual page break {nextpage} is in the string, the page breaks are prioritized by a manual page break


$content = file_get_contents (' Content.txt ');


$ipage = Isset ($_get["IPage"])? Intval ($_get["IPage"]): 1;


$CP = new Cutpage ($content);


$page = $CP->cut_str ();


echo $page [$ipage-1];


Echo ' <div class= ' pages > '. $CP->pagenav (). ' </div> ';


?>

</div>
</div>

Long article pagination class page.class.php

&lt;?php


/*


* Long article Pagination class


*/


Class cutpage{


Private $pagestr; The content of the Shard


Private $pagearr; The array format of the text being slit


Private $sum _word; The total number of words (Chinese characters in the UTF-8 format are also included)


Private $sum _page; Total pages


Private $page _word; How many words a page


Private $cut _tag; Automatic page Breaks


Private $cut _custom; Manual page Breaks


Private $ipage; The number of pages in the current Shard, page


Private $url;





function __construct ($pagestr, $page _word=1000) {


$this-&gt;page_word = $page _word;


$this-&gt;cut_tag = Array ("&lt;/table&gt;", "&lt;/div&gt;", "&lt;/p&gt;", "&lt;br/&gt;", "".) ", "。 ", ".", "！ ", "......", "？ ", ",");


$this-&gt;cut_custom = "{nextpage}";


$tmp _page = isset ($_get["IPage"])? Intval ($_get["IPage"]): 1;


$this-&gt;ipage = $tmp _page&gt;1 $tmp _page:1;


$this-&gt;pagestr = $pagestr;


}


Total number of words in statistics


function Get_page_word () {


$this-&gt;sum_word = $this-&gt;strlen_utf8 ($this-&gt;pagestr);


return $this-&gt;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 &lt; $len) {


$CHR = Ord ($str [$i]);


$count + +;


$i + +;


if ($i &gt;= $len)


Break


if ($CHR &amp; 0x80) {


$CHR &lt;&lt;= 1;


while ($CHR &amp; 0x80) {


$i + +;


$CHR &lt;&lt;= 1;


}


}


}


return $count;


}


Set up automatic page-splitting symbols


function Set_cut_tag ($tag _arr=array ()) {


$this-&gt;cut_tag = $tag _arr;


}


Set manual page Breaks


function Set_cut_custom ($cut _str) {


$this-&gt;cut_custom = $cut _str;


}


function Show_cpage ($ipage =0) {


$this-&gt;cut_str ();


$ipage = $ipage? $ipage: $this-&gt;ipage;


return $this-&gt;pagearr[$ipage];


}


function Cut_str () {


$str _len_word = strlen ($this-&gt;pagestr); Gets the total number of characters obtained using strlen


$i = 0;


if ($str _len_word&lt;= $this-&gt;page_word) {//If the total word count is less than one page display words


$page _arr[$i] = $this-&gt;pagestr;


}else{


if (Strpos ($this-&gt;pagestr, $this-&gt;cut_custom)) {


$page _arr = explode ($this-&gt;cut_custom, $this-&gt;pagestr);


}else{


$str _first = substr ($this-&gt;pagestr, 0, $this-&gt;page_word); 0-page_word text Cutstr as a function in Func.global


foreach ($this-&gt;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-&gt;pagestr, 0, $cut _start). $v;


$cut _start = $cut _start + strlen ($v);


Break


}


}


if ($cut _start+ $this-&gt;page_word) &gt;= $str _len_word) {//If more than the total number of words


$page _arr[$i + +] = substr ($this-&gt;pagestr, $cut _start, $this-&gt;page_word);


}else{


while (($cut _start+ $this-&gt;page_word) &lt; $str _len_word) {


foreach ($this-&gt;cut_tag as $v) {


$str _tmp = substr ($this-&gt;pagestr, $cut _start, $this-&gt;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-&gt;page_word) &gt; $str _len_word) {


$page _arr[$i + +] = substr ($this-&gt;pagestr, $cut _start, $this-&gt;page_word);


}


}


}


}


$this-&gt;sum_page = count ($page _arr); Total pages


$this-&gt;pagearr = $page _arr;


return $page _arr;


}


Displays the previous one, the next one


function Pagenav () {


$this-&gt;set_url ();


$str = ';





$str. = $this-&gt;ipage. /'. $this-&gt;sum_page;





For ($i =1 $i &lt;= $this-&gt;sum_page; $i + +) {


if ($i = = $this-&gt;ipage) {


$str. = "&lt;a href= ' class= ' cur ' &gt;". $i. " &lt;/a&gt; ";


}else{


$str. = "&lt;a href= '". $this-&gt;url. $i. "' &gt; ". $i." &lt;/a&gt; ";


}


}








return $str;


}


function Show_prv_next2 () {


$this-&gt;set_url ();


$str = ';











if ($this-&gt;sum_page&gt;1 and $this-&gt;ipage&gt;1) {


$str. = "&lt;a href= '". $this-&gt;url. ($this-&gt;ipage-1). "' &gt; Prev &lt;/a&gt; ";


}


if ($this-&gt;sum_page&gt;1 and $this-&gt;ipage&lt; $this-&gt;sum_page) {


$str. = "&lt;a href= '". $this-&gt;url. ($this-&gt;ipage+1). "' &gt; next page &lt;/a&gt; ";


}


return $str;


}


function Show_page_select () {


if ($this-&gt;sum_page&gt;1) {


$str = "&lt;select onchange= ' Location.href=this.options[this.selectedindex].value ' &gt;";


For ($i =1 $i &lt;= $this-&gt;sum_page; $i + +) {


$str. = "&lt;option value= '". $this-&gt;url. $i. "' ". ($this-&gt;ipage) = = $i? "Selected= ' selected '": "" ". &gt; ". $i." Page &lt;/option&gt; ";


}


$str. = "&lt;/select&gt;";


}


return $str;


}


function Show_page_select_wap () {


if ($this-&gt;sum_page&gt;1) {


$str = "&lt;select ivalue= '". ($this-&gt;ipage-1). "' &gt; ";


For ($i =1 $i &lt;= $this-&gt;sum_page; $i + +) {


$str. = "&lt;option onpick= '". $this-&gt;url. $i. "' &gt; ". $i." Section &lt;/option&gt; ";


}


$str. = "&lt;/select&gt;";


}


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). " &amp;ipage= ";


}


$this-&gt;url = "http://". $_server["Http_host"].$_server["Php_self"]. $STR;


}


}


?&gt;