php - 带分页的 MySQL PHP 搜索

Question

我正在尝试对我目前正在从事的项目进行搜索。我面临的问题是，当我转到第二页时，搜索结果将是错误的。

这是我的 header.php 中的搜索表单

<form name="search" id="search" method="post" action="search.php">
<input type="text" tabindex="1" class="input" id="term" name="term" value=""/>
<input type="submit" tabindex="2" id="submit" value="SEARCH" />

这是我的搜索页面php代码

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

$term = $_POST['term'];

    $queryn = mysql_query("select * from scripts where title like '%$term%' or discription like '%$term%' and approved='1'") or die (mysql_error());
    $search_num_rows = mysql_num_rows($queryn);
    ?>  
    <div class="cat_script_container">
    <div class="nresults">Found <?php echo $search_num_rows;?> results for "<?php echo $term;?>"</div>
    <?php   
    // 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";
    $query = "select COUNT(*) as num from scripts where title like '%$term%' or discription like '%$term%' and approved='1' order by script_id  desc";
    $total_pages = mysql_fetch_array(mysql_query($query));
    $total_pages = $total_pages['num'];

    /* Setup vars for query. */
    //$targetpage = "category-$cr[cname]-$cid.html";    //your file name  (the name of this file)
    $catn = strtolower($cr['cname']);   //Turn category name in to lowercase
    $catn = preg_replace("![^a-z0-9]+!i", "-", $catn);
    $limit = 2;                                 //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. */
    $sql = "select * from scripts where title like '%$term%' or discription like '%$term%' and approved='1' order by script_id  desc 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) 
            $pagination.= "<a href=\"search-$prev.html\">« 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
                    $pagination.= "<a href=\"search-$counter.html\">$counter</a>";                  
            }
        }
        elseif($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
                        $pagination.= "<a href=\"search-$counter.html\">$counter</a>";                  
                }
                $pagination.= "...";
                $pagination.= "<a href=\"search-$lpm1.html\">$lpm1</a>";
                $pagination.= "<a href=\"search-$lastpage.html\">$lastpage</a>";        
            }
            //in middle; hide some front and some back
            elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
            {
                $pagination.= "<a href=\"search-1.html\">1</a>";
                $pagination.= "<a href=\"search-2.html\">2</a>";
                $pagination.= "...";
                for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
                {
                    if ($counter == $page)
                        $pagination.= "<span class=\"current\">$counter</span>";
                    else
                        $pagination.= "<a href=\"search-$counter.html\">$counter</a>";                  
                }
                $pagination.= "...";
                $pagination.= "<a href=\"search-$lpm1.html\">$lpm1</a>";
                $pagination.= "<a href=\"search-$lastpage.html\">$lastpage</a>";        
            }
            //close to end; only hide early pages
            else
            {
                $pagination.= "<a href=\"search-1.html\">1</a>";
                $pagination.= "<a href=\"search-2.html\">2</a>";
                $pagination.= "...";
                for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
                {
                    if ($counter == $page)
                        $pagination.= "<span class=\"current\">$counter</span>";
                    else
                        $pagination.= "<a href=\"search-$counter.html\">$counter</a>";                  
                }
            }
        }

        //next button
        if ($page < $counter - 1) 
            $pagination.= "<a href=\"search-$next.html\">next »</a>";
        else
            $pagination.= "<span class=\"disabled\">next »</span>";
        $pagination.= "</div>\n";       
    }

    $q=mysql_query("select * from scripts where title like '%$term%' or discription like '%$term%' and approved='1' order by script_id  desc limit $start,$limit");
    $numr=mysql_num_rows($q);
    if ($numr==0)
    {
    echo '<div class="msg_info_box">No results were found. Please try a different search.</div>';
    }
    while($script=mysql_fetch_assoc($q)){
    $str = $script['discription'];
    $wcount = strlen($str);
    if ($wcount > 295){
    $dis = substr($str, 0, 295).'...';
    }else{
    $dis = $str;

}
    $sname = $script['title'];
    $sname = preg_replace("![^a-z0-9]+!i", "-", $sname);
    $sname = strtolower($sname);
    $lid = $script['licens_id'];

$license= mysql_query("SELECT * FROM licens WHERE id='$lid' LIMIT 1") or die (mysql_error());
$lrow = mysql_fetch_array($license);

?>
<div class="new_scripts">
<div class="n_title"><a href="script-<?php echo $script['script_id'];?>-<?php echo $sname;?>.html"><?php echo $script['title'];?></a></div>
<div class="n_dis"><?php echo $dis;?></div>
<div class="n_menu">
<!--#--> 
<div class="ii_info"><span class="is_lable"><a class="s_link" href="<?php echo $script['script_url'];?>" target="_blank">Visit Publisher Site</a></span> | </div>
<div class="ii_info"><span class="is_lable"><a class="s_link" href="<?php echo $script['script_demo'];?>" target="_blank">View Demo</a></span></div>
<div class="i_info"><span class="is_lable">License Type:</span><span class="license"> <?php echo $lrow['lname'];?></span></div>
<!--#-->
</div>
</div> 
<?php } ?>

<div class="pagediv"><?php echo $pagination;?></div>
</div>

我想知道是否有任何方法可以像 action="search.php?term=keyword 这样的搜索表单操作。我想如果我可以像这样发布 url，我可以使用 $_GET 获取 keyworkd。如果有人可以无论如何，请帮助我解决这个问题。在此先感谢。

Answer 1

将 action 属性更改为 get

<form name="search" id="search" method="get" action="search.php">

这样，您的表单值将在提交时附加到 search.php。

例如:

search.php?term=the_term