我是php,html和mysql的新手。我有一个数据库,其中包含他们想要销售产品的用户名,产品和价格。代码用于复选框表单,其中提交按钮的作用类似于价格过滤器,在提交时,它应该回显与相应复选框匹配的用户名,产品和价格。 。如果用户选择标记为" 0-25"的复选框。或" 100&在"上方,单击它应该回显所有具有该特定价格范围内项目的用户的提交按钮。我在网上看到了一个试图操纵我的东西。有人可以帮助我,或者让我了解如何做到这一点?任何帮助表示赞赏
这是我的复选框表格。
<form action="pricefilter.php" method="post">
<br><b>Filter By Price:</b><br><br>
<input type="checkbox" name="$0-$25[]" id="Price" value="0-25"/> $0-$25<br><br>
<input type="checkbox" name="$25-$50[]" id="Price" value="25-50"/> $25-$50<br><br>
<input type="checkbox" name="$50-$100[]" id="Price" value="50-100"/> $50-$100<br><br>
<input type="submit" name="submit" value="Submit" />
</form>
这是我的php文件的代码。
<?php
mysql_connect ("localhost", "root","root") or die (mysql_error());
mysql_select_db ("xuswapuser");
$priceFilter = $_GET['priceFilter'];
$filteredResponse = array ();
foreach($priceFilter as $range)
{
if($range == 025)
{
$query = "select * from Books where Price <= 25";
$sql = mysql_query($query);
array_push($filteredResponse, $sql);
}
if($range == 2550)
{
$query = "select * from Books where Price >= 25 AND Price <=50";
$sql = mysql_query($query);
array_push($filteredResponse, $sql);
}
if($range == 5075)
{
$query = "select * from Books where Price >= 50 AND Price <=75";
$sql = mysql_query($query);
array_push($filteredResponse, $sql);
}
if($range == 75100)
{
$query = "select * from Books where Price >= 75 AND Price <=100";
$sql = mysql_query($query);
array_push($filteredResponse, $sql);
}
if($range == 100)
{
$query = "select * from Books where Price >= 100";
$sql = mysql_query($query);
array_push($filteredResponse, $sql);
}
}
?>
<html>
<head>
<title>
XUSWAP
</title>
<script type="text/javascript" src="sorttable.js"></script>
</head>
<body style="margin: 0; padding: 0;">
<div id="header" style="background-color:#339900;height:157px;width:100%;position:relative;"> <!--header area-->
<form id="headerForm" name="headerForm" method="Post" action="" align="right">
<input type="image" src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSN3XIAe50cjq5Cf91GbAywPkChmI5HOAqYxgmRN8F5OhW7I_RT5Q" alt="Placeholder" align="left" width="150" height="150">
<br><br><br>
<input type="text" name="searchInput"id="search" style="width:500px;"/>
<input type="submit" name="searchButton" id="searchButton" value="Search" />
<input type="submit" name="logoutButton" id="logoutButton" value="Logout"/>
<br><br><br>
</form>
</div>
<div id="background" style="background-color:#FFD700;height:100%; width:100%;">
<div id = "pageContent"></div>
<div id="background" style="background-color:#FFD700;height:100%; width:100%;">
<blockquote>
<blockquote>
<blockquote>
<blockquote>
<blockquote>
<blockquote>
<blockquote>
<p>Books </p>
</blockquote>
</blockquote>
</blockquote>
</blockquote>
</blockquote>
</blockquote>
</blockquote>
<blockquote>
<table class="sortable" width="940" height="52" border="0">
<tr>
<td width="200" id="sortable">Username</td>
<td width="253"> Product</td>
<td width="220">Condition</td>
<td width="249">Price</td>
</tr>
<?php do { ?>
<tr>
<td><?php echo $range['id']; ?></td>
<td><?php echo $range['Product']; ?></td>
<td><?php echo $range['Condition']; ?></td>
<td><?php echo $range['Price']; ?></td>
</tr>
<?php } while ($range = mysql_fetch_assoc($sql)); ?>
</table>
答案 0 :(得分:2)
哎哟。 :)
-
<input name="asd">
如果在PHP中发布,则会访问:
$_POST['asd']
并检查是否已发布:
if(isset($_POST['asd']) { ...
通过使用$ row []数组的对流,我假设您要打印查询结果。要打印结果,您需要获取它们并迭代它们。按照你的方式:
while ($row = mysql_fetch_assoc($sql)) { ...
然而,不推荐使用mysql_ *函数,在熟悉它们之前,最好切换到mysqli_ *或PDO库。
答案 1 :(得分:0)
这只是一个简单的代码供您遵循,您可以通过将选中的值放入数组并通过foreach()
执行查询来遍历所有可能性<input type="checkbox" name="priceFilter[]" value="025">
<input type="checkbox" name="priceFilter[]" value="2550">
// etc.
<?php
$priceFilter = $_POST['pricFilter']; // this is now an array
if(isset($priceFilter[025]))
{
$query25 = "select * from Books where Price <= 25";
}
if(isset($priceFilter[2550]))
{
$query2550 = "select * from Books where Price >= 25 AND Price <= 50";
}
//etc.
// then run your query if it is set
if(isset($query25))
{
$sql = mysql_query($query25);
}
// then do w/e you need to do then run subsequent possibily
?>
这很费时间,但我只是想了解如何处理php中的复选框
UPDATE 如果你想用foreach做这件事:
<?php
$priceFilter = $_GET['priceFilter'];
$filteredResponse = array ();
foreach($priceFilter as $range)
{
if($range == 025)
{
$query = "select * from Books where Price <= 25";
$sql = mysql_query($query);
array_push($filteredResponse, $sql);
}
if($range == 2550)
{
$query = "select * from Books where Price >= 25 AND Price <=50";
$sql = mysql_query($query);
array_push($filteredResponse, $sql);
}
// do this for all the conditions and you can save the results in an array of arrays
}
根据复选框表单中的选项,您现在拥有一系列MYSQL响应。然后只需解析您认为合适的信息。
我还是建议 - 在继续使用PDO而不是mysql_之前,因为它是遗留代码