这是我的分页代码，在页面的底部，页面编号显示，但ahref链接不工作。谁能告诉我我哪里做错了?我希望您不需要css文件。
还请注意，分页链接(ahref链接)是第一次创建的，但当我从一个页面移动到另一个页面时，链接消失了。(我没有包括连接字符串)
<html>
<head>
<link href="pagin.css" rel="stylesheet" type="text/css" />
</head>
<?php
/*
Place code to connect to your DB here.
*/
include('config.php'); // include your code to connect to DB.
$tbl_name="data"; //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";
echo $query;
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages['num'];
/* Setup vars for query. */
$targetpage = "page3.php"; //your file name (the name of this file)
$limit = 4;
//how many items to show per page
$page = isset($_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 * FROM $tbl_name LIMIT $start, $limit";
$result = mysql_query($sql) or die($sql. "<br>". mysql_error());
/* Setup page vars for display. */
if ($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_assoc($result))
{
// Your while loop here
$title = $row['title'];
$link = $row['link'];
$region = $row['region'];
$sector = $row['sector'];
$theme = $row['theme'];
echo "<tr>";
echo "<td>";
echo "<div class='admonition'>";
echo "<div class='admonition-title'>";
echo "<a href=$link><h3>$title<h3></a>";echo "</div>"; echo "</div>";
echo "<h4>Sector: $sector Theme: $theme
<br> Region: $region <hr> </td>";
echo "</tr>";
}
?>
<?php echo $pagination; ?>
按此执行:
echo "<h4>Sector: $sector Theme: $theme
<br> Region: $region <hr> </td>";
echo "</tr>";
你的标签好像没有结束标签。
用这个代替
echo "<h4>Sector: $sector Theme: $theme
<br> Region: $region </h4><hr> </td>";
echo "</tr>";
它使你的代码中断。该行之后显示的分页不能显示分页链接。它可能在多余的非间断空间中丢失了。为什么不使用css float来减少这一行的标记呢?
(3.0更新)这样做，让我知道你发现了什么(注意整数转换)。由于某种原因，只有当我将$page转换为整数时才有效。
我包含了额外的代码来容纳您指定的3个查询字符串(k, x, y)如果您更改它们，您也需要在代码中更改它们。请参阅链接中的附加代码。
<?php
$total_rows = 20;
$selected_row = mt_rand(0, $total_rows);
/*
Place code to connect to your DB here.
*/
//include('config.php'); // include your code to connect to DB.
$tbl_name = "data";
// 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";
//echo $query;
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages['num'];
/* Setup vars for query. */
$targetpage = "page3.php"; //your file name (the name of this file)
//UPDATE 2.0
//Create the lines below to get k=world&x=9&y=2 and include links. Please see changes in link below:
/*
$k = ((isset($_GET['k']))? "&k=".$_GET['k'] : "" );
$x = ((isset($_GET['x']))? "&x=".$_GET['x']: "" );
$y = ((isset($_GET['y']))? "&y=".$_GET['y'] : "" );
$query_string = $k.$x.$y;
*/
//UPDATE 3.0
//MORE DYNAMIC should you decide to change the url parameters used.
$q = $_SERVER['QUERY_STRING'];
if($q != ""){
$q_a = explode('&', $q);
$q_b = array();
$q_c = array();
$link = "";
foreach($q_a as $param){
$q_b[] = explode('=', $param);
foreach($q_b as $key => $value){
$q_c[$value[0]] = $value[1];
}
}
unset($q_c['page']);
}
foreach($q_c as $key => $value){
$link .= "&";
$link .= $key.'='.$value;
}
$query_string = $link;
$limit = 4;
//how many items to show per page
$page = isset($_GET['page']);
$page = $this->uri->segment(3);
if ($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 * FROM $tbl_name LIMIT $start, $limit";
$result = mysql_query($sql) or die($sql . "<br>" . mysql_error());
/* Setup page vars for display. */
if ($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=$prev{$query_string}'">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 == (int) $page) {
$pagination.= "<span class='"current'">$counter</span>";
} else {
$pagination.= "<a href='"$targetpage?page=$counter{$query_string}'">$counter</a>";
}
}
} elseif ($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 == (int) $page) {
$pagination.= "<span class='"current'">$counter</span>";
} else {
$pagination.= "<a href='"$targetpage?page=$counter{$query_string}'">$counter</a>";
}
}
$pagination.= "...";
$pagination.= "<a href='"$targetpage?page=$lpm1.$query_string'">$lpm1</a>";
$pagination.= "<a href='"$targetpage?page=$lastpage{$query_string}'">$lastpage</a>";
}
//in middle; hide some front and some back
elseif ($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2)) {
$pagination.= "<a href='"$targetpage?page=1{$query_string}'">1</a>";
$pagination.= "<a href='"$targetpage?page=2{$query_string}'">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=$counter{$query_string}'">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href='"$targetpage?page=$lpm1{$query_string}'">$lpm1</a>";
$pagination.= "<a href='"$targetpage?page=$lastpage{$query_string}'">$lastpage</a>";
}
//close to end; only hide early pages
else {
$pagination.= "<a href='"$targetpage?page=1{$query_string}'">1</a>";
$pagination.= "<a href='"$targetpage?page=2{$query_string}'">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=$counter{$query_string}'">$counter</a>";
}
}
}
//next button
if ($page < $counter - 1)
$pagination.= "<a href='"$targetpage?page=$next{$query_string}'">next</a>";
else
$pagination.= "<span class='"disabled'">next</span>";
$pagination.= "</div>'n";
}
?>
<?php
while ($row = mysql_fetch_assoc($result)) {
// Your while loop here
$title = $row['course_title'];
$link = $row['course_description'];
$region = $row['course_fee'];
$sector = $row['diploma_fee'];
$theme = $row['course_duration'];
/*
$title = $row['title'];
$link = $row['link'];
$region = $row['region'];
$sector = $row['sector'];
$theme = $row['theme'];
*/
echo "<tr>";
echo "<td>";
echo "<div class='admonition'>";
echo "<div class='admonition-title'>";
echo "<a href=$link><h3>$title<h3></a>";
echo "</div>";
echo "</div>";
echo "<h4>Sector: $sector Theme: $theme
<br> Region: $region <hr> </td>";
echo "</tr>";
}
?>
<?php echo $pagination; ?>
除此之外，我这边似乎一切都很好。
这可能是个问题:
$pagination.= "<a href='"$targetpage?page=$prev'">previous</a>";
一个解决方案
$pagination.= '<a href="' . $targetpage?page=$prev . '">previous</a>';