【问题标题】:How to add multiple sql queries to paginaiton dynamically?如何动态地将多个 sql 查询添加到 paginaiton?
【发布时间】:2010-07-28 00:50:42
【问题描述】:

我正在尝试动态添加或连接多个 sql 查询。

我正在创建一个分页脚本,我正在尝试添加一些过滤按钮或链接,在这种情况下,当用户单击链接时,它会将 id 添加到 sql 查询中,然后显示结果。

为了更好地理解我的意思,我将向您展示我正在编写的脚本:

下面你会看到我有三个链接;市场营销、汽车和体育。这些链接代表过滤器选择,因此当单击“Marketing”之类的链接时,sql 查询将插入“category=$ids”的营销。这很好用,除非我想添加多个选择,例如仅选择“营销”和“体育”而不显示“汽车”。

有没有一种简单的方法可以向 sql 连接添加多个 id 而不是一个?

我希望这是有道理的,如果您需要任何进一步的解释,请告诉我。感谢您对此的任何帮助。

<?php
  $ids=$_GET['id'];
  echo $ids;

  $pageN = $_GET['page'];
  echo $pageN;
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>SUPERMAN</title>
<link href="../style.css" rel="stylesheet" type="text/css" />


<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js"></script>
<script type="text/javascript" >

$(document).ready(function(){

// Filter content.    
    $("a.category").click(function() {

        var this_id = $(this).attr('id');
        $("#pagination").load('index.php?&id='+ this_id+'&page=1' );

    });
});
</script>


<style>
.paginate {
font-family:Arial, Helvetica, sans-serif;
    padding: 3px;
    margin: 3px;
}

.paginate a {
    padding:2px 5px 2px 5px;
    margin:2px;
    border:1px solid #999;
    text-decoration:none;
    color: #666;
}
.paginate a:hover, .paginate a:active {
    border: 1px solid #999;
    color: #000;
}
.paginate span.current {
    margin: 2px;
    padding: 2px 5px 2px 5px;
        border: 1px solid #999;

        font-weight: bold;
        background-color: #999;
        color: #FFF;
    }
    .paginate span.disabled {
        padding:2px 5px 2px 5px;
        margin:2px;
        border:1px solid #eee;
        color:#DDD;
    }

    li{
        padding:4px;
        margin-bottom:3px;
        background-color:#BBBECB;
        list-style:none;}

    ul{margin:6px;
    padding:0px;}   

</style>
</head>

<body>
<p>Fitler Results</p>
<br />
<a href="#" class="category" id="marketing">Marketing</a>

<a href="#" class="category" id="automotive">Automotive</a>

<a href="#" class="category" id="sports">Sports</a>

<br />
<br />


<?php
    include('connect.php'); 

    $tableName="explore";       
    $targetpage = "index.php";  
    $limit = 2; 

    $query = "SELECT COUNT(*) as num FROM $tableName WHERE category='$ids'";
    $total_pages = mysql_fetch_array(mysql_query($query));
    $total_pages = $total_pages[num];

    $stages = 3;
    $page = mysql_escape_string($_GET['page']);
    if($page){
        $start = ($page - 1) * $limit; 
    }else{
        $start = 0; 
        }   

    // Get page data
    //$query1 = "SELECT * FROM $tableName LIMIT $start, $limit";
    $query1 = "SELECT * FROM explore WHERE category='$ids' ORDER BY category LIMIT $start, $limit";
    $result = mysql_query($query1);

    // Initial page num setup
    if ($page == 0){$page = 1;}
    $prev = $page - 1;  
    $next = $page + 1;                          
    $lastpage = ceil($total_pages/$limit);      
    $LastPagem1 = $lastpage - 1;                    


    $paginate = '';
    if($lastpage > 1)
    {   




        $paginate .= "<div class='paginate'>";
        // Previous
        if ($page > 1){
            $paginate.= "<a href='$targetpage?page=$prev'>previous</a>";
        }else{
            $paginate.= "<span class='disabled'>previous</span>";   }



        // Pages    
        if ($lastpage < 7 + ($stages * 2))  // Not enough pages to breaking it up
        {   
            for ($counter = 1; $counter <= $lastpage; $counter++)
            {
                if ($counter == $page){
                    $paginate.= "<span class='current'>$counter</span>";
                }else{
                    $paginate.= "<a href='$targetpage?&id=$ids&page=$counter'>$counter</a>";}                   
            }
        }
        elseif($lastpage > 5 + ($stages * 2))   // Enough pages to hide a few?
        {
            // Beginning only hide later pages
            if($page < 1 + ($stages * 2))       
            {
                for ($counter = 1; $counter < 4 + ($stages * 2); $counter++)
                {
                    if ($counter == $page){
                        $paginate.= "<span class='current'>$counter</span>";
                    }else{
                        $paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";}                    
                }
                $paginate.= "...";
                $paginate.= "<a href='$targetpage?page=$LastPagem1'>$LastPagem1</a>";
                $paginate.= "<a href='$targetpage?page=$lastpage'>$lastpage</a>";       
            }
            // Middle hide some front and some back
            elseif($lastpage - ($stages * 2) > $page && $page > ($stages * 2))
            {
                $paginate.= "<a href='$targetpage?page=1'>1</a>";
                $paginate.= "<a href='$targetpage?page=2'>2</a>";
                $paginate.= "...";
                for ($counter = $page - $stages; $counter <= $page + $stages; $counter++)
                {
                    if ($counter == $page){
                        $paginate.= "<span class='current'>$counter</span>";
                    }else{
                        $paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";}                    
                }
                $paginate.= "...";
                $paginate.= "<a href='$targetpage?page=$LastPagem1'>$LastPagem1</a>";
                $paginate.= "<a href='$targetpage?page=$lastpage'>$lastpage</a>";       
            }
            // End only hide early pages
            else
            {
                $paginate.= "<a href='$targetpage?page=1'>1</a>";
                $paginate.= "<a href='$targetpage?page=2'>2</a>";
                $paginate.= "...";
                for ($counter = $lastpage - (2 + ($stages * 2)); $counter <= $lastpage; $counter++)
                {
                    if ($counter == $page){
                        $paginate.= "<span class='current'>$counter</span>";
                    }else{
                        $paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";}                    
                }
            }
        }

                // Next
        if ($page < $counter - 1){ 
            $paginate.= "<a href='$targetpage?page=$next'>next</a>";
        }else{
            $paginate.= "<span class='disabled'>next</span>";
            }

        $paginate.= "</div>";       


}
 echo $total_pages.' Results';
 // pagination
 echo $paginate;
?>

<ul id="pagination">

<?php 


        while($row = mysql_fetch_array($result))
        {

        echo '<li>'.$row['site_name'].'</li>';

        }

    ?>
</ul>


</body>
</html>

【问题讨论】:

    标签: php jquery pagination


    【解决方案1】:

    我不确定 $ids 包含什么,但 MySQL 有一个 IN() 运算符,其作用类似于 IE 中的 or 语句:

    ...WHERE category IN(1,2,3,4,5)...

    所以 $ids 需要是一个逗号分隔的列表,无论它是一个实际的标题还是一个 ID。希望这可以帮助您弄清楚您需要做什么。

    【讨论】:

    • $ids 包含链接 ID。市场营销、汽车或体育。单击时插入到查询中。
    【解决方案2】:

    你可以使用 IN:

    SELECT COUNT(*) as num FROM $tableName WHERE category IN ($id1, $id2, $id3)
    

    您还真的非常需要查看 mysql_real_escape_string() 函数,以免有人破坏您的数据库。

    【讨论】:

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