Question

我已经在我的网站中建立了一个搜索功能，并有一个分页。首先，我有一个错误，显示用户是否还没有输入或只输入一个字符。但是我只希望这个错误能够工作一次＆＃39; go＆＃39; / submit已被按下。

其次，页面计数显示但是我想在结果和页面计数之间留出几行间隔，这样我的用户就可以清楚地看到它。

我尝试过：<br> <br />``echo "\n"等建立休息的唯一方法是，如果我把回声＆＃34;你好＆＃34;，这显然不是我想要的东西，但这是反复试验。

我已经包含了我的代码：

<?php
session_start();
include "includes/header.php";
include "includes/connect.php";
?>
<link rel="stylesheet" type="text/css" href="css/generalstyle.css">
<div id = "searchBar">
    <form action="search.php" method="GET">
        Search : <input type="text" size="30" name="search" />
        <input type="submit" name = "submit" value ="GO"/>
    </form>
</div><!--END SEARCH BAR-->

<?php 
$button = $_GET ['submit'];
$search = $_GET ['search']; 

if(strlen($search)<=1)
    echo "Search term too short";
else{
    echo "<br><br>You searched for <b>$search</b> <hr size='1'></br>";

    $fullrecords = "SELECT * FROM apps WHERE ApplicationName LIKE'%$search%' OR ApplicationDescription LIKE '%$search%';";                   
    $fullresult = mysqli_query($conn, $fullrecords);
    $foundnum = mysqli_num_rows($fullresult);

    if ($foundnum==0)
        echo "Sorry, there are no matching applications for <b>$search</b>.</br></br>1. Try more general words. For example: If you want to search for 'how to write notes'then use general keywords like 'notes' or 'write'.</br>2. Try different words with similar meaning.</br>3. Please check your spelling and try again.";
    else{ 
        echo "$foundnum results found !<p>";

        $per_page = 9;
        $start = $_GET['start'];
        $max_pages = ceil($foundnum / $per_page);

        if(!$start)
            $start=0; 
            $getquery = mysqli_query($conn, "SELECT ApplicationID, ApplicationName, ApplicationDescription FROM apps WHERE ApplicationName LIKE '%$search%' OR ApplicationDescription LIKE '%$search%' LIMIT $start, $per_page;");

        while($row = $getquery->fetch_object()){
            $_GET['search']=$_POST['search'];
            echo "<div class=\"col-6 col-sm-6 col-lg-4\">";
            echo '<form method="post" action="cart_update.php">';
            echo '<h2>'.$row->ApplicationName.'</h2>';
            echo '<p>'.$row->ApplicationDescription.'</p>';
            echo '<button class="add_to_cart">Add To Cart</button>';
            echo '<input type="hidden" name="product_code" value="'.$row->ApplicationID.'" />';
            echo '<input type="hidden" name="type" value="add" />';
            echo '<input type="hidden" name="return_url" value="'.$current_url.'" />';
            echo '</form></div>';
            }  
        }
    //Pagination Starts
    echo "<center>";
    $prev = $start - $per_page;
    $next = $start + $per_page;                     
    $last = $max_pages - 1;
    if($max_pages > 1){   
    //previous button
        if (!($start<=0)) 
            echo "<a href='search.php?search=$search&submit=Search+source+code&start=$prev'>Prev |</a> ";             
            //pages 
        $i = 0;   
        for ($counter = 1; $counter <= $max_pages; $counter++){
            if($i == $start){
            echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'><b> $counter |</b></a> ";
            }
            else {
                echo " <a href='search.php?search=$search&submit=Search+source+code&start=$i'> $counter |</a> ";
            }  
        $i = $i + $per_page;                 
        }
    }      
//next button
if (!($start >=$foundnum-$per_page))
    echo " <a href='search.php?search=$search&submit=Search+source+code&start=$next'> Next</a> ";    
}   
echo "</center>";

如果空的PHP分页什么也不做格式化

0 个答案: