PHP Ajax page-type code _php tips

<?php


This page class does not handle SQL;


Dramatically speeds up paging functionality


Http://blog.csdn.net/fkedwgwy


Xiaoxiang Blog--Xiaoxiang


/**


Demonstrate


Require_once ('.. /libs/classes/page.class.php ');


$page =new page (' Total ' =>1000, ' perpage ' =>20));


Echo ' mode:1<br> '. $page->show ();


Echo ' <hr>mode:2<br> ' $page->show (2);


Echo ' <hr>mode:3<br> ' $page->show (3);


Echo ' <hr>mode:4<br> ' $page->show (4);


Echo ' <hr> start Ajax mode: ';


$ajaxpage =new page (' Total ' =>1000, ' perpage ' =>20, ' Ajax ' => ' ajax_page ', ' page_name ' => ' Test '));


Echo ' mode:1<br> '. $ajaxpage->show ();


*/


Class Zend_page


{


/**


* Config, public


*/


The Var $page _name= "page";//page label, used to control the URL page. such as xxx.php? The Pb_page in the pb_page=2


var $next _page= ' > ';//Next page


var $pre _page= ' < ';//Previous Page


var $first _page= ' first ';//Home


var $last _page= ' last ';//End


var $pre _bar= ' << ';//previous page bar


var $next _bar= ' >> ';//Next page Bar


var $format _left= ';


var $format _right= ';


var $is _ajax=false;//Whether Ajax paging mode is supported


var $next _ten_page= ">>>";


var $per _ten_page= "<<<";





/**


* Private


*


*/


The Var $pagebarnum =10;//control the number of record bars.


=0;//var $totalpage total pages


var $ajax _action_name= ';//ajax action name


var $nowindex =1;//Current Page


var $url = "";//url address Header


var $offset = 0;


var $total = ';





/**


* Constructor Constructor


*


* @param array $array [' total '], $array [' Perpage '], $array [' Nowindex '], $array [' url '], $array [' Ajax '] ...


*/


function Zend_page ($array)


{


if (Is_array ($array)) {


if (!array_key_exists (' Total ', $array)) $this->error (__function__, ' need a param to total ');


$total =intval ($array [' total ']);


$perpage = (array_key_exists (' Perpage ', $array))? intval ($array [' Perpage ']): 10;


$nowindex = (array_key_exists (' Nowindex ', $array))? intval ($array [' Nowindex ']): ';


$url = (array_key_exists (' url ', $array))? $array [' url ']: ';


}else{


$total = $array;


$perpage = 10;


$nowindex = ';


$url = ';


}


if ((!is_int ($total)) | | ($total <0)) $this->error (__function__, $total. ' is not a positive integer! ');


if ((!is_int ($perpage)) | | ($perpage <=0)) $this->error (__function__, $perpage. ' is not a positive integer! ');


if (!empty ($array [' page_name '])) $this->set (' page_name ', $array [' page_name ']);/set pagename


$this->_set_nowindex ($nowindex);//Set the current page


$this->_set_url ($url);//Set link address


$this->totalpage=ceil ($total/$perpage);


$this->total= $total;


$this->offset= ($this->nowindex-1) * $perpage;


if (!empty ($array [' Ajax '])) $this->open_ajax ($array [' Ajax ']);//Open Ajax mode


}


/**


* Set the value of the variable name specified in the class, if the amount of change does not belong to this class, will throw a exception


*


* @param string $var


* @param string $value


*/


function set ($var, $value)


{


if (In_array ($var, Get_object_vars ($this))


$this-> $var = $value;


else {


$this->error (__function__, $var. "Does not belong to pb_page!");


}





}


/**


* Turn on inverted Ajax mode


*


* @param string $action The default Ajax-triggered action.


*/


function Open_ajax ($action)


{


$this->is_ajax=true;


$this->ajax_action_name= $action;


}


/**


* Get the code that displays the next page


*


* @param string $style


* @return String


*/


function next_page ($style = ')


{


if ($this->nowindex< $this->totalpage) {


return $this->_get_link ($this->_get_url ($this->nowindex+1), $this->next_page, $style);


}


Return ' <span class= '. $style. ' " > '. $this->next_page. ' </span> ';


}





/**


* Get the code that shows "previous page"


*


* @param string $style


* @return String


*/


function pre_page ($style = ')


{


if ($this->nowindex>1) {


return $this->_get_link ($this->_get_url ($this->nowindex-1), $this->pre_page, $style);


}


Return ' <span class= '. $style. ' " > '. $this->pre_page. ' </span> ';


}





/**


* Get the code that shows "up to 10 pages"


*


* @param string $style


* @return String


*/


function pre_ten_page ($style = ')


{


if (Intval ($this->nowindex/10) +1>1) {


return $this->_get_link ($this->_get_url ($this->nowindex/10) *10-5), $this->pre_ten_page, $style );


}


Return ' <span class= '. $style. ' " > '. $this->pre_ten_page. ' </span> ';


}





/**


* Get the code that shows "next 10 pages"


*


* @param string $style


* @return String


*/


function next_ten_page ($style = ')


{


if (Intval ($this->nowindex/10) <intval ($this->totalpage/10)) {


return $this->_get_link ($this->_get_url (intval ($this->nowindex/10) +1) *10+5), $this->next_ten_page,$ Style);


}


Return ' <span class= '. $style. ' " > '. $this->next_ten_page. ' </span> ';


}





/**


* Get the code to display "Home page"


*


* @return String


*/


function first_page ($style = ')


{


if ($this->nowindex==1) {


Return ' <span class= '. $style. ' " > '. $this->first_page. ' </span> ';


}


return $this->_get_link ($this->_get_url (1), $this->first_page, $style);


}





/**


* Get the code that shows "last"


*


* @return String


*/


function last_page ($style = ')


{


if ($this->nowindex== $this->totalpage) {


Return ' <span class= '. $style. ' " > '. $this->last_page. ' </span> ';


}


return $this->_get_link ($this->_get_url ($this->totalpage), $this->last_page, $style);


}





function Nowbar ($style = ', $nowindex _style= ')


{


$plus =ceil ($this->PAGEBARNUM/2);


if ($this->pagebarnum-$plus + $this->nowindex> $this->totalpage) $plus = ($this->pagebarnum-$this-> totalpage+ $this->nowindex);


$begin = $this->nowindex-$plus +1;


$begin = ($begin >=1) $begin: 1;


$return = ';


for ($i = $begin; $i < $begin + $this->pagebarnum; $i + +)


{


if ($i <= $this->totalpage) {


if ($i!= $this->nowindex)


$return. = $this->_get_text ($this->_get_link ($this->_get_url ($i), $i, $style));


Else


$return. = $this->_get_text (' <span class= '. $nowindex _style. ') > '. $i. ' </span> ');


}else{


Break


}


$return. = "\ n";


}


Unset ($begin);


return $return;


}


/**


* Get the code to display the Jump button


*


* @return String


*/


function Select ()


{


$return = ' <select name= ' Pb_page_select "onchange=" Location.replace (this.value) ">";


For ($i =1 $i <= $this->totalpage; $i + +)


{


if ($i = = $this->nowindex) {


$return. = ' <option value= '. $this->_get_url ($i). ' selected> '. $i. ' </option> ';


}else{


$return. = ' <option value= '. $this->_get_url ($i). ' > '. $i. ' </option> ';


}


}


Unset ($i);


$return. = ' </select> ';


return $return;


}





/**


* Get the value required by limit in the MySQL statement


*


* @return String


*/


function offset ()


{


return $this->offset;


}





/**


* Control pagination display style (you can add the corresponding style)


*


* @param int $mode


* @return String


*/


Function Show ($mode =1, $url = ")


{


Switch ($mode)


{


Case ' 1 ':


$this->next_page= ' next page ';


$this->pre_page= ' up a page ';


return $this->pre_page (). $this->nowbar (). $this->next_page (). ' $this->select (). ' Page ';


Break


Case ' 2 ':


$this->next_page= ' next page ';


$this->pre_page= ' up a page ';


$this->first_page= ' home ';


$this->last_page= ' last ';


return $this->first_page (). $this->pre_page (). ' [->nowindex. $this] '. $this->next_page (). $this->last_page (). ' $this->select (). ' Page ';


Break


Case ' 3 ':


$this->next_page= ' next page ';


$this->pre_page= ' up a page ';


$this->first_page= ' home ';


$this->last_page= ' last ';


return $this->first_page (). $this->pre_page (). $this->next_page (). $this->last_page ();


Break


Case ' 4 ':


$this->next_page= ' next ';


$this->pre_page= ' last ';


return $this->pre_page (). $this->nowbar (). $this->next_page ();


Break


Case ' 5 ':


return $this->pre_bar (). $this->pre_page (). $this->nowbar (). $this->next_page (). $this->next_bar ();


Break


Case ' 6 ':


Previous page, next page, last page is enabled. You can enable "first page" as appropriate.


$this->first_page= ' <img src= '. Hostpath. ' Images/propageup.jpg ' width= "height=" ">";


$this->pre_page= ' <img src= '. Hostpath. ' images/propageup.jpg ' style= ' width:58px; height:18px; " > ';


$this->next_page= ' <img src= '. Hostpath. ' images/propagedown.jpg ' style= ' width:58px; height:18px; " > ';


$this->last_page= ' last page ';


Return "<TD width=39 align= ' center ' >". $this->select (). " </td> "." <td><span style= ' color: #666666 ' > Page </span></td> '. <TD width=72 align=right> ". $this->first_page ()." </td> "." <TD width=72 align=right> ". $this->pre_page ()." </td> "." <TD width=72 align=right> ". $this->next_page ()." </td> "." <TD width=72 align=right> ". $this->last_page ()." </td> ";


Return "<td align= ' right ' > Total [". $this->total. "] Item ". $this->nowindex." /". $this->totalpage." Page </td> "." <td width=145> ". $this->pre_page ()." ". $this->next_page (). " </td> "." <td width=145> ". $this->last_page ()." ".  $this->select (). " Page ";


Break


Case ' 7 ':


$this->next_page= ' <img src= '. Hostpath. ' Images/arrpagedown.jpg '/> ';


$this->pre_page= ' <img src= '. Hostpath. ' Images/arrpageup.jpg '/> ';


$this->first_page= ' <img src= '. Hostpath. ' Images/arrhome.jpg '/> ';


$this->last_page= ' <img src= '. Hostpath. ' Images/arrend.jpg '/> ';


if ($this->totalpage==0)


{$this->nowindex=0;}


return $this->first_page (). "". $this->pre_page (). "". $this->next_page (). "". $this->last_page (). "". $this->select ();


Break


Case ' 8 ':


Previous page, next page, last page is enabled. You can enable "first page" as appropriate.


$this->first_page= ' <img src= '. Hostpath. ' Images/propageup.jpg ' width= "height=" ">";


$this->pre_page= ' <img src= '. Hostpath. ' images/propageup.jpg ' style= ' width:58px; height:18px; " > ';


$this->next_page= ' <img src= '. Hostpath. ' images/propagedown.jpg ' style= ' width:58px; height:18px; " > ';


$this->last_page= ' last page ';


if ($this->totalpage==0)


{$this->nowindex=0;}


Return "<TD width=39 align= ' center ' >". $this->select (). " </td> "." <td><span style= ' color: #666666 ' > Page </span></td> '. <TD width=72 align=right> ". $this->first_page ()." </td> "." <TD width=72 align=right> ". $this->pre_page ()." </td> "." <TD width=72 align=right> ". $this->next_page ()." </td> "." <TD width=72 align=right> ". $this->last_page ()." </td> ";


Return "<td align= ' right ' > Total [". $this->total. "] Message ". $this->nowindex." /". $this->totalpage." Page </td> "." <td width=145> ". $this->pre_page ()." ". $this->next_page (). " </td> "." <td width=145> ". $this->last_page ()." ".  $this->select (). " Page ";


Break


}





}


/*----------------Private Function (private method)-----------------------------------------------------------* *


/**


* Set URL header address


* @param: String $url


* @return Boolean


*/


function _set_url ($url = "")


{


if (!empty ($url)) {


Manually set


$this->url= $url. (Stristr ($url, '? ')] & ': '? '). $this->page_name. " =";


}else{


Automatically get


if (Empty ($_server[' query_string ')) {


When there is no query_string


$this->url=$_server[' Request_uri ']. $this->page_name. " =";


}else{


//


if (Stristr ($_server[' query_string '), $this->page_name. ' =')){


Address has page parameters


$this->url=str_replace ($this->page_name. = '. $this->nowindex, ', $_server[' Request_uri ']);


$last = $this->url[strlen ($this->url)-1];


if ($last = = '? ' | | $last = = ' & ') {


$this->url.= $this->page_name. " =";


}else{


$this->url.= ' & '. $this->page_name. " =";


}


}else{


//


$this->url=$_server[' Request_uri ']. ' & '. $this->page_name. ' =';


}//end if


}//end if


}//end if


}





/**


* Set the current page


*


*/


function _set_nowindex ($nowindex)


{


if (empty ($nowindex)) {


System access





if (Isset ($_get[$this->page_name])) {


$this->nowindex=intval ($_get[$this->page_name]);


}


}else{


Manually set


$this->nowindex=intval ($nowindex);


}


}





/**


* Returns the address value for the specified page


*


* @param int $pageno


* @return String $url


*/


function _get_url ($pageno =1)


{


Return $this->url. $pageno;


}





/**


* Get pagination display text, for example, by default _get_text (' <a href= ' ">1</a> ') will return [<a href=" ">1</A>]


*


* @param String $str


* @return String $url


*/


function _get_text ($STR)


{


Return $this->format_left. $str $this->format_right;


}





/**


* Get the link address


*/


function _get_link ($url, $text, $style = ') {


$style = (Empty ($style))? ': ' class= '. $style. ' ";


if ($this->is_ajax) {


If you are using AJAX mode


Return ' <a '. $style. ' href= ' javascript: '. $this->ajax_action_name. ' (\ $url. \ ' > '. $text. ' </a> ';


}else{


Return ' <a '. $style. ' href= '. $url. ' " > '. $text. ' </a> ';


}


}


/**


* Error Handling mode


*/


Function error ($function, $errormsg)


{


Die (' Error in File <b> '. __file__. ') </b>, Function <b> '. $function. ' () </b>: '. $errormsg);


}


}


?>