php - MYSQL 搜索 - PHP 表单

Question

<div class="searchbox">
    <form action="Search.php" method="get">
       <fieldset>
          <input id="$search" placeholder="Search for a Product" type="text" />
          <input id="submit" type="hidden" />
       </fieldset>
    </form>
</div>
<div id="content">
<ul>        
<?php

$host = "xxx"; 
$user = "xxx"; 
$pass = "xxx"; 
$db = "xxx"; 

mysql_connect($host, $user, $pass); 
mysql_select_db($db); 
unset($host,$user,$pass,$db); 


//$query = "SELECT produkt FROM checklist WHERE id IS "1";  
$query = "SELECT produkt FROM checklist WHERE id LIKE '%$search%'";  
$result = mysql_query($query); 
  while ($row = mysql_fetch_array($result)) 
{ 

echo "<li><span class='name'><b>$row[produkt]</b><br /></span><span class='comment'><i>Tierische Stoffe: </i>$row[tierisch]</span><i> Alkohol: </i>$row[alkohol]</span></span></li>";
  }  
?>

我的搜索框似乎有问题。目前，我只看到数据库中的所有项目，并且我想查看我正在搜索的项目。

就这样吗？

<div class="searchbox">
    <form action="Search.php" method="get">
       <fieldset>
          <input id="search" placeholder="Search for a Product" type="text" />
          <input id="submit" type="hidden" />
       </fieldset>
    </form>
</div>
<div id="content">
<ul>        
<?php

$host = "xxx"; 
$user = "xxx"; 
$pass = "xxx"; 
$db = "xxx"; 

mysql_connect($host, $user, $pass); 
mysql_select_db($db); 
unset($host,$user,$pass,$db); 

$search = $_POST['search'];

$query = "SELECT produkt FROM checklist WHERE id LIKE '%".$_POST['search']."%'";
//$query = "SELECT produkt FROM checklist WHERE id LIKE '%$search%'";  
$result = mysql_query($query); 

Answer 1

<input id="$search" placeholder

这里需要$吗？它应该变成:

<input id="search" placeholder

要从搜索查询内部访问 GET 变量，请使用 $_GET 数组，如下所示:

$query = "SELECT produkt FROM checklist WHERE id LIKE '%{$_GET['search']}%'";  

但为了安全起见并避免 mysql 注入(inject)，您可能需要这样做:

$search = mysql_real_escape_string($_GET['search']);
$query = "SELECT produkt FROM checklist WHERE id LIKE '%{$search}%'";  

编辑:忘记输入中的名称属性:

<input name="search" id="search" placeholder="Search for a Product" type="text" />

然后在你的 php 中

$search = mysql_real_escape_string($_GET['search']);
$query = "SELECT produkt FROM checklist WHERE id LIKE '%{$search}%'";

$result = mysql_query($query); 
while ($row = mysql_fetch_array($result)){  
    echo "<li><span class='name'><b>{$row['produkt']}</b></span></li>";
}