CodeIgniter example of a page class passed in Test _php tutorial

Generic paging Class (tested with CodeIgniter)

page_list.php
Copy the Code code as follows:

/**
* Pagination Class
*/
Class Page_list {

/**
* Total Data
* @var int
*/
Private $total;
/**
* Show data per page
* @var int
*/
Private $size;
/**
* Current Page
* @var int
*/
Private $page;
/**
* Page number list left and right pages
* @var int
*/
Private $len;

/**
* Total Pages
* @var int
*/
Private $page _total;
/**
* Page List
* @var Array
*/
Private $page _list;

/**
* Base Address
* @var String
*/
Private $base _url;
/**
* Replacement Flag
* @var String
*/
Private $place;
/**
* Pagination Style
* @var String
*/
Private $style;

/**
* Constructor function
*
* @param array $config configuration
*/
Public function __construct ($config = Array ()) {
Initialize default values
$this->total = 0;
$this->size = 20;
$this->page = 1;
$this->len = 4;
$this->page_total = 1;
$this->page_list = Array ();
$this->base_url = '? page=-page-';
$this->place = '-page-';
$this->style = $this->get_default_style ();
$this->initialize ($config);
}

/**
* Initializing Paging
*
* @param array $config configuration
*/
Public Function Initialize ($config = Array ()) {
Get configuration value
if (Is_array ($config)) {
if (array_key_exists (' Total ', $config)) $this->total = @intval ($config [' total ']);
if (array_key_exists (' size ', $config)) $this->size = @intval ($config [' size ']);
if (array_key_exists (' page ', $config)) $this->page = @intval ($config [' page ']);
if (array_key_exists (' Len ', $config)) $this->len = @intval ($config [' Len ']);
if (array_key_exists (' Base_url ', $config)) $this->base_url = @strval ($config [' base_url ']);
if (array_key_exists (' place ', $config)) $this->place = @strval ($config [' Place ']);
if (array_key_exists (' style ', $config)) $this->style = @strval ($config [' style ']);
}
Fixed value
if ($this->total<0) $this->total = 0;
if ($this->size<=0) $this->size = 20;
if ($this->page<=0) $this->page = 1;
if ($this->len<=0) $this->len = 4;
Perform a paging algorithm
$this->page_total = ceil ($this->total/$this->size);
if ($this->page_total<=0) $this->page_total = 1;
if ($this->page> $this->page_total) $this->page = $this->page_total;
if ($this->page-$this->len>=1) {
for ($i = $this->len; $i >0; $i-) {
$this->page_list[] = $this->page-$i;
}
}else{
for ($i =1; $i < $this->page; $i +) {
$this->page_list[] = $i;
}
}
$this->page_list[] = $this->page;
if ($this->page+ $this->len<= $this->page_total) {
for ($i =1; $i <= $this->len; $i +) {
$this->page_list[] = $this->page + $i;
}
}else{
for ($i = $this->page+1; $i <= $this->page_total; $i + +) {
$this->page_list[] = $i;
}
}
}

/**
* Default page-out style
*
* @return String
*/
Public Function Get_default_style () {
$style = '';
return $style;
}

/**
* Whether it is the first page
*
* @return BOOL
*/
Public Function Is_first_page () {
return $this->page = = 1;
}

/**
* Get first page number
*
* @return int
*/
Public Function Get_first_page () {
return 1;
}

/**
* is the last page
*
* @return BOOL
*/
Public Function Is_last_page () {
return $this->page = = $this->page_total;
}

/**
* Get last page number
*
* @return int
*/
Public Function Get_last_page () {
return $this->page_total;
}

/**
* Is there a previous page
*
* @return BOOL
*/
Public Function Has_prev_page () {
Return $this->page > 1;
}

/**
* Is there a next page
*
* @return BOOL
*/
Public Function Has_next_page () {
return $this->page < $this->page_total;
}

/**
* Get Previous page number
*
* @return int
*/
Public Function Get_prev_page () {
return $this->has_prev_page ()? $this->page-1: $this->page;
}

/**
* Get Next page number
*
* @return int
*/
Public Function Get_next_page () {
return $this->has_next_page ()? $this->page + 1: $this->page;
}

/**
* Get the current page number
*
* @return int
*/
Public Function Get_curr_page () {
return $this->page;
}

/**
* Get the total number of data
*
* @return int
*/
Public Function Get_total () {
return $this->total;
}

/**
* Gets the number of data displayed per page
*
* @return int
*/
Public Function get_size () {
return $this->size;
}

/**
* Get Total pages
*
* @return int
*/
Public Function Get_total_page () {
return $this->page_total;
}

/**
* Constructs and returns the paging code
*
* @param string $base _url base Address
* @param string $place Replace flag
* @param string $styl e pagination Style
* @return string pagination HTML code
*/
Public Function display ($base _url = ", $place =", $style = ") {
if ( $base _url=== ") $base _url = $this->base_url;
if ($place = = =) $place = $this->place;
if ($style = = =) $style = $this->style;
$str = $style. ";
if (! $this->is_first_page ()) {
$str. = ' Get_first_page (), $base _url). ' " > Home ';
}
if ($this->has_prev_page ()) {
$str. = ' Get_prev_page (), $base _url). ' " > previous page ';
}
foreach ($this->page_list as $v) {
if ($v = = $this->page) {
$str. = ' '. $v. '';
}else{
$str. = '. $v. ';
}
}
if ($this->has_next_page ()) {
$str. = ' Get_next_page (), $base _url). ' " > next page ';
}
if (! $this->is_last_page ()) {
$str. = ' Get_last_page (), $base _url). ' " > Last ';
}
$str. = ";
return $str;
}

}
?>

/application/view/pagelist.php
Copy the Code code as follows:

Class PageList extends Ci_controller {

Public Function page () {
$this->load->helper (' url ');
$page = $this->input->get (' page ');
$page = @intval ($page);
if ($page <=0) $page = 1;
$this->load->library (' page_list ', array (' Total ' =>10000, ' size ' =>16, ' page ' = + $page));
$PL = $this->page_list->display (site_url (' pagelist/page/page/-page-'));
$this->load->view (' pagelist ', array (' pl ' = = $pl));
}

}
?>

/application/view/pagelist.php
Copy the Code code as follows:




Paging test

http://www.bkjia.com/PHPjc/755840.html www.bkjia.com true http://www.bkjia.com/PHPjc/755840.html techarticle the generic paging class (in CodeIgniter test) page_list.php copy code code as follows:? PHP if (! defined (' BasePath ')) die (' No Access ');/** * Pagination class */class Pa ge_list {/** * Total ...

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