PHP

Question

我试图让分页功能在不同的页面上显示我的数据。它似乎很好地从数据库中提取数据并将它们分开。问题似乎出在未显示的页面链接上。

这是我正在处理的测试页：http://jonathanlowe.co.uk/testsite/uploadform/page.php

<?php

/*connecting DB here.*/
include('dbconnect.inc.php');

$tbl_name="detail";       //your table name
// How many adjacent pages should be shown on each side?
$adjacents = 1;

/* 
   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 = "page.php";   //your file name  (the name of this file)
$limit = 1;                                 //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 * 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))
    {


        echo "<div class='wrapper'>";

        echo "<div class='box'><strong> Company: </strong>" . $row['company_name'] . "</div>";

        echo "<div class='box'><strong> Ref: </strong>" . $row['ref'] . "</div>";

        echo "<div class='box'><strong> Website: </strong>" . $row['website'] . "</div>";

        echo "<div class='box'><strong> Email: </strong>" . $row['email'] . "</div>";

        echo "<div class='box'><strong> Telephone: </strong>" . $row['tel'] . "</div>";

        echo "<div class='box'><strong> File Server Location: </strong>" . $row['location'] . "</div>";

        echo "<div class='box'><strong> Design From Website: </strong>" . $row['fromweb'] . "</div>";

        echo "<div class='box'><strong> Add QR Code: </strong>" . $row['qr'] . "</div>";

        echo "<div class='line'></div>";

        echo "<strong> Message: </strong>" . $row['message'] . "</br></div></p>";

        echo "</div>";

    }
?>

Answer 1

你必须

echo $pagination;

在您的代码中使其可见

Answer 2

在最后添加一行以显示分页<?php echo $pagination; ?>

为了好看还可以用下面的css。

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;
}

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