Может ли кто-нибудь предложить хороший скрипт php для разбивки на страницы, где вы хотите отобразить множество элементов из базы данных по умолчанию
Следующая ссылка может вам помочь, у нее есть простое описание
http://www.strangerstudios.com/sandbox/pagination/diggstyle.php
Если вы хотите получить учебное пособие, вы должны прочитать
Простой и простой, чтобы учиться на
<? $per_page=10; //put FROM and WHERE parts into separate variable $from_where="FROM table WHERE filter=1"; //getting total number of records $res=mysql_query("SELECT count(id) ".$from_where); $row=mysql_fetch_row($res); $total_rows=$row[0]; //Process GET variables to get $start value for LIMIT if (isset($_GET['page'])) $CUR_PAGE=($_GET['page']); else $CUR_PAGE=1; $start=abs(($CUR_PAGE-1)*$per_page); //getting records from database into array $query="SELECT * $from_where ORDER BY date DESC LIMIT $start,$per_page"; $res=mysql_query($query); while ($row=mysql_fetch_array($res)) $DATA[++$start]=$row; //Getting page URL without query string $uri=strtok($_SERVER['REQUEST_URI'],"?")."?"; //create a new query string without a page variable if (isset($_GET['page'])) unset($_GET['page']); if (count($_GET)) { foreach ($_GET as $k => $v) { if ($k != "page") $uri.=urlencode($k)."=".urlencode($v)."&"; } } //getting total number of pages and filling an array with links $num_pages=ceil($total_rows/$per_page); for($i=1;$i<=$num_pages;$i++) $PAGES[$i]=$uri.'page='.$i; //and here goes a simple template ?> Total records: <b><?=$total_rows?></b><br><br> <? foreach ($DATA as $i => $row): ?> <?=$i?>. <a href="?id=<?=$row['id']?>"><?=$row['title']?></a><br> <? endforeach ?> <br> Pages: <? foreach ($PAGES as $i => $link): ?> <? if ($i == $CUR_PAGE): ?> <b><?=$i?></b> <? else: ?> <a href="<?=$link?>"><?=$i?></a> <? endif ?> <? endforeach ?> Секрет заключается в предложениях SELECT ... LIMIT x OFFSET y SQL.
Это не сложно. Вот рецепт быстрой и простой системы:
Сделайте запрос SELECT, добавьте предложение LIMIT PERPAGE * (PAGENUM-1), PERPAGE Обратите внимание, что все переменные cap могут быть параметрами GET для вашего скрипта.
Найдите общее количество результатов для вашего запроса SELECT, если не было предложения LIMIT (есть методы для этого, например, SELECT SQL «SQL_CALC_FOUND_ROWS * FROM …», который будет интегрирован в # 1.) Call это N
Отобразите пользователю данные вместе с «Отображение элементов PERPAGE * (PAGENUM-1) +1 для PERPAGE * PAGE из N"
Я бы опубликовал пример, но мои запросы и дескриптор DB обрабатываются в другом месте моего кода.
Хотя руководство находится на датском языке, я считаю, что вы можете легко понять и использовать абстрактный класс с этого сайта: http://www.jensgram.dk/web/e-artikler/1265 (около дна).
Все, что вам нужно сделать, это реализовать метод renderItem() и вы отключены:
class PaginatedGuestbook extends Paginator { protected function renderItem(&$row) { $o = "\Post from " . $row['name'] . "<br />\n" . "Header: <b>" . $row['header'] . "</b><br />\n" . "Text: " . $row['body'] . "<br />\n"; // You can do whatever you want with the $row array return $o; } } $gb = new PaginatedGuestbook( 'guestbook_table', // Table(s) 'tstamp, name, header, body', // Fields to populate in renderItem's $row 'hidden=0 AND deleted=0', // Condition 'tstamp DESC', // Ordering 5 // Items per page ); print $gb->renderItems(); print "<br />\n\n"; print $gb->renderNavigation('paginated.php');
Кроме того, вы можете настроить ссылки и т. Д.
Пожалуйста, проверьте следующий URL-адрес для разбивки на страницы
Я получил хороший пример для разбивки на страницы:
<?php /* Place code to connect to your DB here. */ include('config.php'); // include your code to connect to DB. $tbl_name=""; //your table name // How many adjacent pages should be shown on each side? $adjacents = 3; /* First get total number of rows in data table. If you have a WHERE clause in your query, make sure you mirror it here. */ $query = "SELECT COUNT(*) as num FROM $tbl_name"; $total_pages = mysql_fetch_array(mysql_query($query)); $total_pages = $total_pages[num]; /* Setup vars for query. */ $targetpage = "filename.php"; //your file name (the name of this file) $limit = 2; //how many items to show per page $page = $_GET['page']; if($page) $start = ($page - 1) * $limit; //first item to display on this page else $start = 0; //if no page var is given, set start to 0 /* Get data. */ $sql = "SELECT column_name FROM $tbl_name LIMIT $start, $limit"; $result = mysql_query($sql); /* Setup page vars for display. */ if ($page == 0) $page = 1; //if no page var is given, default to 1. $prev = $page - 1; //previous page is page - 1 $next = $page + 1; //next page is page + 1 $lastpage = ceil($total_pages/$limit); //lastpage is = total pages / items per page, rounded up. $lpm1 = $lastpage - 1; //last page minus 1 /* Now we apply our rules and draw the pagination object. We're actually saving the code to a variable in case we want to draw it more than once. */ $pagination = ""; if($lastpage > 1) { $pagination .= "<div class=\"pagination\">"; //previous button if ($page > 1) $pagination.= "<a href=\"$targetpage?page=$prev\">« previous</a>"; else $pagination.= "<span class=\"disabled\">« previous</span>"; //pages if ($lastpage < 7 + ($adjacents * 2)) //not enough pages to bother breaking it up { for ($counter = 1; $counter <= $lastpage; $counter++) { if ($counter == $page) $pagination.= "<span class=\"current\">$counter</span>"; else $pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>"; } } elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some { //close to beginning; only hide later pages if($page < 1 + ($adjacents * 2)) { for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++) { if ($counter == $page) $pagination.= "<span class=\"current\">$counter</span>"; else $pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>"; } $pagination.= "..."; $pagination.= "<a href=\"$targetpage?page=$lpm1\">$lpm1</a>"; $pagination.= "<a href=\"$targetpage?page=$lastpage\">$lastpage</a>"; } //in middle; hide some front and some back elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2)) { $pagination.= "<a href=\"$targetpage?page=1\">1</a>"; $pagination.= "<a href=\"$targetpage?page=2\">2</a>"; $pagination.= "..."; for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++) { if ($counter == $page) $pagination.= "<span class=\"current\">$counter</span>"; else $pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>"; } $pagination.= "..."; $pagination.= "<a href=\"$targetpage?page=$lpm1\">$lpm1</a>"; $pagination.= "<a href=\"$targetpage?page=$lastpage\">$lastpage</a>"; } //close to end; only hide early pages else { $pagination.= "<a href=\"$targetpage?page=1\">1</a>"; $pagination.= "<a href=\"$targetpage?page=2\">2</a>"; $pagination.= "..."; for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++) { if ($counter == $page) $pagination.= "<span class=\"current\">$counter</span>"; else $pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>"; } } } //next button if ($page < $counter - 1) $pagination.= "<a href=\"$targetpage?page=$next\">next »</a>"; else $pagination.= "<span class=\"disabled\">next »</span>"; $pagination.= "</div>\n"; } ?> <?php while($row = mysql_fetch_array($result)) { // Your while loop here } ?> <?=$pagination?>в<?php /* Place code to connect to your DB here. */ include('config.php'); // include your code to connect to DB. $tbl_name=""; //your table name // How many adjacent pages should be shown on each side? $adjacents = 3; /* First get total number of rows in data table. If you have a WHERE clause in your query, make sure you mirror it here. */ $query = "SELECT COUNT(*) as num FROM $tbl_name"; $total_pages = mysql_fetch_array(mysql_query($query)); $total_pages = $total_pages[num]; /* Setup vars for query. */ $targetpage = "filename.php"; //your file name (the name of this file) $limit = 2; //how many items to show per page $page = $_GET['page']; if($page) $start = ($page - 1) * $limit; //first item to display on this page else $start = 0; //if no page var is given, set start to 0 /* Get data. */ $sql = "SELECT column_name FROM $tbl_name LIMIT $start, $limit"; $result = mysql_query($sql); /* Setup page vars for display. */ if ($page == 0) $page = 1; //if no page var is given, default to 1. $prev = $page - 1; //previous page is page - 1 $next = $page + 1; //next page is page + 1 $lastpage = ceil($total_pages/$limit); //lastpage is = total pages / items per page, rounded up. $lpm1 = $lastpage - 1; //last page minus 1 /* Now we apply our rules and draw the pagination object. We're actually saving the code to a variable in case we want to draw it more than once. */ $pagination = ""; if($lastpage > 1) { $pagination .= "<div class=\"pagination\">"; //previous button if ($page > 1) $pagination.= "<a href=\"$targetpage?page=$prev\">« previous</a>"; else $pagination.= "<span class=\"disabled\">« previous</span>"; //pages if ($lastpage < 7 + ($adjacents * 2)) //not enough pages to bother breaking it up { for ($counter = 1; $counter <= $lastpage; $counter++) { if ($counter == $page) $pagination.= "<span class=\"current\">$counter</span>"; else $pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>"; } } elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some { //close to beginning; only hide later pages if($page < 1 + ($adjacents * 2)) { for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++) { if ($counter == $page) $pagination.= "<span class=\"current\">$counter</span>"; else $pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>"; } $pagination.= "..."; $pagination.= "<a href=\"$targetpage?page=$lpm1\">$lpm1</a>"; $pagination.= "<a href=\"$targetpage?page=$lastpage\">$lastpage</a>"; } //in middle; hide some front and some back elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2)) { $pagination.= "<a href=\"$targetpage?page=1\">1</a>"; $pagination.= "<a href=\"$targetpage?page=2\">2</a>"; $pagination.= "..."; for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++) { if ($counter == $page) $pagination.= "<span class=\"current\">$counter</span>"; else $pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>"; } $pagination.= "..."; $pagination.= "<a href=\"$targetpage?page=$lpm1\">$lpm1</a>"; $pagination.= "<a href=\"$targetpage?page=$lastpage\">$lastpage</a>"; } //close to end; only hide early pages else { $pagination.= "<a href=\"$targetpage?page=1\">1</a>"; $pagination.= "<a href=\"$targetpage?page=2\">2</a>"; $pagination.= "..."; for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++) { if ($counter == $page) $pagination.= "<span class=\"current\">$counter</span>"; else $pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>"; } } } //next button if ($page < $counter - 1) $pagination.= "<a href=\"$targetpage?page=$next\">next »</a>"; else $pagination.= "<span class=\"disabled\">next »</span>"; $pagination.= "</div>\n"; } ?> <?php while($row = mysql_fetch_array($result)) { // Your while loop here } ?> <?=$pagination?>
//////////////////////////////////////СТИЛЬ/////////// ///////////////////////////
div.pagination { padding: 3px; margin: 3px; } div.pagination a { padding: 2px 5px 2px 5px; margin: 2px; border: 1px solid #AAAADD; text-decoration: none; /* no underline */ color: #000099; } div.pagination a:hover, div.pagination a:active { border: 1px solid #000099; color: #000; } div.pagination span.current { padding: 2px 5px 2px 5px; margin: 2px; border: 1px solid #000099; font-weight: bold; background-color: #000099; color: #FFF; } div.pagination span.disabled { padding: 2px 5px 2px 5px; margin: 2px; border: 1px solid #EEE; color: #DDD; }