存儲GET變量的值

Question

我在第一頁上有一個搜索欄，結果在第二頁上用分頁顯示。問題是分頁不符合$_GET或$_POST變量。

我的意思是，當表單提交的第二頁的URL改變爲類似

products.php?search=something一樣，我能夠看到顯示出來的結果。

然而，當我打的分頁我得到undefined index search error的下一個按鈕和URL變化products.php?page=2

所以是有，我可以存儲$_GET['search'];值，這樣我可以用它的頁號更改時，任何方式？

<form action="products.php" method="post"> 
    <input type="text" name="search"> 
    <input type="Submit"> 
    </form> 

products.php

<?php 
     /* 
     * Connect to the database (Replacing the XXXXXX's with the correct details) 
     */ 
     try 
     { 
      $dbh = new PDO('mysql:host=localhost;dbname=db', 'root', ''); 
     } 
     catch(PDOException $e) 
     { 
      print "Error!: " . $e->getMessage() . "<br/>"; 
      die(); 
     } 
     /* 
     * Get and/or set the page number we are on 
     */ 
     if(isset($_GET['page'])) 
     { 
      $page = $_GET['page']; 
     } 
     else 
     { 
      $page = 1; 
     } 


     /* 
     * Set a few of the basic options for the class, replacing the URL with your own of course 
     */ 
     $options = array(
      'results_per_page'    => 100, 
      'url'       => 'products.php?page=*VAR*', 
      'db_handle'      => $dbh 
     ); 

     $q = $_GET['search']; 
     /* 
     * Create the pagination object 
     */ 


     try 

    { 

      $paginate = new pagination($page, "SELECT * FROM products where title LIKE '%$q%' order by id desc", $options);} 

    catch(paginationException $e) 
     { 
      echo $e; 
      exit(); 
     } 


    if($paginate->success == true) 
     { 
      $paginate_result = $paginate->resultset->fetchAll(); 
      foreach($paginate_result as $row) 
      { 

        echo $row['title']; 
        } 

      ?> 


     <?php echo "<li>"; //this is next and prev button for the pagination class if results exceed the limit. 
    echo $ball->links_html; 
    echo "</li>"; ?> 

Answer 1

更改您的代碼是這樣的......

<form action="products.php" method="get"> 
    <input type="text" name="search"> 
    <input type="Submit"> 
    </form> 

......還有......

$options = array(
       'results_per_page'    => 100, 
       'url'       => 'products.php?search=' . urlencode($_GET['search']) . '&page=*VAR*', 
       'db_handle'      => $dbh 
      ); 

Answer 2

最簡單的解決方案可能會在您的表單中使用隱藏字段：

個

<form action="products.php" method="post"> 
    <input type="text" name="search"> 
    <input type="hidden" name="page" value="<?php echo $_GET['page']; ?>"> 
    <input type="Submit"> 
</form> 

Answer 3

嘗試Session變量，他們讓你保存它，直到瀏覽器被關閉（或切換到另一個網站，也許？），並將其存儲跨頁。

http://www.tizag.com/phpT/phpsessions.php

另一種方法是餅乾，這將讓你存儲只是，只要你想，除非用戶刪除cookie。

http://www.tizag.com/phpT/phpcookies.php