经过几个小时试图找出我的分页脚本为什么不使用我的变量，我在一些人的帮助下发现我的POST变量并没有从一页到另一页转移正如我的数据分页。
会话是处理此类场景的最佳方式吗？例如，我有这个：
session_start(); //start session
$_SESSION["formdata"] = $_POST['City']; //get form data input
$myvar = $_SESSION["formdata"];
$sql = "SELECT * FROM $tbl_name WHERE City = \"$myvar\" LIMIT $start, $limit"; //query
无论如何，这似乎不起作用。表单数据显示在第一页上，但任何后续页面都是空白的。感谢您的帮助和建议
CODE：
session_start();
include('sqlconnect.php'); // include your code to connect to DB.
mysql_select_db("barter") or die(mysql_error());
$tbl_name="posts"; //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 = "fp2.php"; //your file name (the name of this file)
$limit = 3; //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. */
$_SESSION["formdata"] = $_GET['City'];
$myvar = $_SESSION["formdata"];
echo $myvar;
$sql = "SELECT * FROM $tbl_name WHERE City = \"$myvar\" 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))
{
echo ('<br>');
echo '<div style="margin-left:52%;">';
echo '<div style=" width:100%; . " id="Posts">';
echo '<h3>' . $row["Title"] .'</h3>';
echo 'posted by:' . $row["Name"] . "<br/>";
echo 'Posted On:' . $row["Time"] . "<br/>";
echo $row["postname"] . "<br/>";
echo $row["Post"] . "<br/>";
echo ('<a href=http://brightstardetailers.ddns.net/Barter/' . $row["postname"] . '.php' . '>Full Post</a>' . "<br/>");
echo '</div>';
echo '</div>';
}
?>
<?=$pagination?>
答案 0 :(得分：1)
您的paginator会加载新页面。它不会将POST请求转发到新页面加载，因此当页面加载时，$_POST为空。通过常规网络链接填充$_POST是一种非常棒的方式。您必须提交表单或通过AJAX进行分页。
我认为您最容易做的就是跳过使用会话，而是将您的分页链接包装在<form>中。使用$_POST数据填充此表单中的隐藏输入，并使用JavaScript在每个分页链接上侦听点击事件。单击其中一个链接时，要么使用页码填充另一个隐藏的输入（如果要通过POST传递页码），要么修改表单的action属性以包含页码。获取URL的一部分。然后使用JavaScript提交表单。
除了您想要的新页面之外，还可以在单击分页链接后填充POST数据。无需在会话中全局存储内容。