确定。我已经创建了另一个关于此的问题,但我想我已经复杂了一点。我会在这里尝试简化我的问题:
假设您有以下代码:
<?php
if($_POST['page']){
$page = $_POST['page'];
$cur_page = $page;
$page -= 1;
$per_page = 15;
$previous_btn = true;
$next_btn = true;
$first_btn = true;
$last_btn = true;
$start = $page * $per_page;
include"dbconnect.php";
$query_pag_data = "SELECT msg_id,message from test LIMIT $start, $per_page";
$result_pag_data = mysql_query($query_pag_data) or die('MySql Error' . mysql_error());
$msg = "";
while ($row = mysql_fetch_array($result_pag_data)) {
$htmlmsg=htmlentities($row['message']);
$msg .= "<li><b>" . $row['msg_id'] . "</b> " . $htmlmsg . "</li>";
}
$msg = "<div class='data'><ul>" . $msg . "</ul></div>"; // Content for Data
/* --------------------------------------------- */
$query_pag_num = "SELECT COUNT(*) AS count FROM student";
$result_pag_num = mysql_query($query_pag_num);
$row = mysql_fetch_array($result_pag_num);
$count = $row['count'];
$no_of_paginations = ceil($count / $per_page);
/* ---------------Calculating the starting and endign values for the loop----------------------------------- */
if ($cur_page >= 7) {
$start_loop = $cur_page - 3;
if ($no_of_paginations > $cur_page + 3)
$end_loop = $cur_page + 3;
else if ($cur_page <= $no_of_paginations && $cur_page > $no_of_paginations - 6) {
$start_loop = $no_of_paginations - 6;
$end_loop = $no_of_paginations;
} else {
$end_loop = $no_of_paginations;
}
} else {
$start_loop = 1;
if ($no_of_paginations > 7)
$end_loop = 7;
else
$end_loop = $no_of_paginations;
}
/* ----------------------------------------------------------------------------------------------------------- */
$msg .= "<div class='pagination'><ul>";
// FOR ENABLING THE FIRST BUTTON
if ($first_btn && $cur_page > 1) {
$msg .= "<li p='1' class='active'>First</li>";
} else if ($first_btn) {
$msg .= "<li p='1' class='inactive'>First</li>";
}
// FOR ENABLING THE PREVIOUS BUTTON
if ($previous_btn && $cur_page > 1) {
$pre = $cur_page - 1;
$msg .= "<li p='$pre' class='active'>Previous</li>";
} else if ($previous_btn) {
$msg .= "<li class='inactive'>Previous</li>";
}
for ($i = $start_loop; $i <= $end_loop; $i++) {
if ($cur_page == $i)
$msg .= "<li p='$i' style='color:#fff;background-color:#006699;' class='active'>{$i}</li>";
else
$msg .= "<li p='$i' class='active'>{$i}</li>";
}
// TO ENABLE THE NEXT BUTTON
if ($next_btn && $cur_page < $no_of_paginations) {
$nex = $cur_page + 1;
$msg .= "<li p='$nex' class='active'>Next</li>";
} else if ($next_btn) {
$msg .= "<li class='inactive'>Next</li>";
}
// TO ENABLE THE END BUTTON
if ($last_btn && $cur_page < $no_of_paginations) {
$msg .= "<li p='$no_of_paginations' class='active'>Last</li>";
} else if ($last_btn) {
$msg .= "<li p='$no_of_paginations' class='inactive'>Last</li>";
}
$goto = "<input type='text' class='goto' size='1' style='margin-top:-1px;margin-left:60px;'/><input type='button' id='go_btn' class='go_button' value='Go'/>";
$total_string = "<span class='total' a='$no_of_paginations'>Page <b>" . $cur_page . "</b> of <b>$no_of_paginations</b></span>";
$msg = $msg . "</ul>" . $goto . $total_string . "</div>"; // Content for pagination
echo $msg;
}
该代码是更大的分页解决方案的一部分,但我的问题是:
在上面的代码中,我在同一个地方查询数据和实现分页算法;
这是我在每个分页教程/演示/步行中看到的方法。
在我的情况下,我已经拥有了需要以json格式分页的数据,因此我不会查询数据库。基本上,如何实现对数组的分页,例如?看那里的样本,他们都使用LIMIT分页,我的思想不能没有它的任何分页方法,但我不能重新查询数据库。
有没有人试图对其他mysql结果集进行分页?
答案 0 :(得分:2)
一种方式:
使用APC / Eaccelerator缓存来缓存结果并将数据解析到不同的页面。因此,下次有人请求页面时,不要查询数据库,而是从缓存中检索数据并根据页码对其进行切片
PHP:
$start = ($this->pageNo - 1) * $pageSize;
$page = array_slice($data, $start, $this->pageSize);
另一种方式:
使用jquery插件或任何其他javascript插件来实现分页,该分页将转储所有数据并将其解析到不同的页面。一个非常有用的链接:http://th3silverlining.com/2010/04/15/pajination-a-jquery-pagination-plugin/ http://tablesorter.com/docs/example-pager.html