PHP拆分搜索欄關鍵字按空格鍵

Question

好吧，讓我儘可能具體....我想改變我的搜索欄的行爲方式。現在，字符串必須完全匹配MySQL查詢！或者它不會顯示我的產品。

這裏是我的了： 一種 「案例iphone」

searchitems.php?tosearch=case+iphone&Search=Search 

現在搜索 「iPhone外殼」

searchitems.php?tosearch=iphone+case&Search=Search 

搜索現在基於查詢如何工作...如果我在URL手動這種類型的...它的作品我如何想：

searchitems.php?tosearch=%iphone%&%case%&Search=Search 

那麼，如何去從

searchitems.php?tosearch=case+iphone&Search=Search 

網址更改爲

searchitems.php?tosearch=%iphone%&%case%&Search=Search 

這是我到目前爲止的代碼：

搜索表單在index.php文件

<form method="GET" action="searchitems.php"> 
    <input size="50" type="text" name="tosearch" value="Search" name="keyword" id="keyword" title="keyword" onfocus="clearText(this)" onblur="clearText(this)" class="txt_field"> 
    <input type="submit" name="Search" value="Search" alt="Search" id="searchbutton" title="Search" class="sub_btn"> 
</form> 

searchitems.php（很抱歉，如果它沒有正確標籤只是複製和粘貼）

<?php 
include('core/header2.php'); 
include ('core/connectdb.php'); 
if(isset($_GET['tosearch'])) { 
$tosearch=$_GET['tosearch']; 
$tosearch=urldecode($tosearch); 
$tosearch = preg_replace('!\s+!', ' ', trim($tosearch)); 
$search_terms = explode(' ',$tosearch); 
$search_terms[] = $tosearch; 
$search_terms=array_unique($search_terms); 
$query = "select * from products where "; 
$query_fields = Array(); 
$sql = "SHOW COLUMNS FROM products"; 
$columnlist = $connect->query($sql); 
while($arr = $columnlist->fetch_assoc()){ 
    extract($arr); 
    $query_fields[] = $Field . " LIKE ('%". $tosearch . "%')"; 
} 
$query .= implode(" OR ", $query_fields); 
       $results = mysqli_query($connect, $query) or die(mysql_error()); 
       $rows = $results->num_rows; 
       if ($rows > 0) { 
        $cols = 5; 
        $counter = 1; 
        $nbsp = $cols - ($rows % $cols); 
        echo '<div id="content" class="float_r">'; 
        echo "<table border=\"0\">"; 
        while ($row = mysqli_fetch_array($results, MYSQLI_ASSOC)) { 
         if(($counter % $cols) == 1) { // Check if it's new row 
          echo '<tr align="center">'; 
         } 
         extract($row); 
         echo '<td valign="top" style="padding-right:15px;">'; 
         echo "<a href=itemdetails.php?itemcode=$item_code>"; 
         echo '<img src=' . $imagename . ' style="max-width:120px;max-height:140px; 
         width:auto;height:auto;"></img><br/>'; 
         echo $item_name .'<br/>'; 
         echo "</a>"; 
         echo '<div class="product_price">$'. $price .'</div>'; 
         echo "<form method=\"POST\" action=\"cart.php?action=add&icode=$item_code&iname=$item_name&iprice=$price&ilocation=$location\">"; 
         echo "<input type=\"submit\" name=\"addtocart\" value=\"Add To Cart\"></form>"; 
         echo "</td>"; 
         if(($counter % $cols) == 0){ 
          echo "</tr>"; 
         } 
         $counter++; 
        } 
        if($nbsp > 0) { // Add unused column in last row 
         for ($i = 0; $i < $nbsp; $i++) { 
          echo '<td>&nbsp;</td>';  
         } 
         echo '</tr>'; 
        } 

           } 
} 
echo '</table></div><div class="cleaner"></div>'; 
include('core/footer.php'); 
?> 

Answer 1

好，大哥，這是一個不錯的辦法如何正在做。但爲了學習，它很好。對於+標誌的問題，你可以使用PHP urldecode，例如：

<?php 
$tosearch = 'a+b'; 
echo urldecode($tosearch); 

它有自己的親/ CON的事情，但在高級別它會爲你工作，你可以挖掘更多的這個問題，如果你喜歡。