【发布时间】：2018-11-14 20:31:08
【问题描述】：
我正在处理一个 PHP 项目，到目前为止，它看起来应该是：
该网站应该提供他们选择的木材的实际尺寸
我的问题是，无论他们选择什么，我都会得到3/4" x 1-1/2"（如果他们点击英寸）或19 x 38 mm（如果他们点击指标）。
我熟悉一点编码，但我不是最擅长的，我希望能得到尽可能多的帮助。
这是我的 HTML 输入页面的代码：
<!DOCTYPE HTML>
<html lang="en" style="text-align:center; zoom:150%;">
<head>
<meta charset="utf-8">
<title> Final - Lumber</title>
</head>
<body style="background-color: lightgrey;">
<h1 style="color:white; background-color:black;">
<?php
//Includes the code to connect to the server
//include_once 'includes/dbc.php';
?>
</h1>
<p> Please complete this form to submit your input: </p>
<p><span style="color:#FF0000">* required filed</span></p>
<form method="post" action="handler.php">
<p>
<label> What size of lumber would you want?
<select name="size" required>
<option value="NULL" disabled selected> -------- </option>
<option value="1"> 1" X 2" </option>
<option value="2"> 1" X 3" </option>
<option value="3"> 1" X 4" </option>
<option value="4"> 1" X 5" </option>
<option value="5"> 1" X 6" </option>
<option value="6"> 1" X 7" </option>
<option value="7"> 1" X 8" </option>
<option value="8"> 1" X 10" </option>
<option value="9"> 1" X 12" </option>
<option value="10"> 2" X 4" </option>
<option value="11"> 2" X 6" </option>
<option value="12"> 2" X 8" </option>
<option value="13"> 2" X 10" </option>
<option value="14"> 2" X 12" </option>
<option value="15"> 3" X 6" </option>
<option value="16"> 4" X 4" </option>
<option value="17"> 4" X 6" </option>
</select>
</label>
<span style="color:#FF0000">*</span>
</p>
<p>
<label> Choose how you would like the actual sizes displayed?
</label>
<span style="color:#FF0000">*</span>
</p>
<input type="submit" name="inches" value="Inches">
<input type="submit" name="metric" value="Metric">
</form>
</body>
</html>
这是我的 handler.php 代码，假设为他们选择的木材提供正确的尺寸
<?php
//connects to the server
//include_once 'includes/dbc.php';
//Renaming values to make it easier to write
$size = isset($_POST['size']);
$metric = isset($_POST['metric']);
$inches = isset($_POST['inches']);
//If they click on the inches button
if ($inches)
{
switch ($size) {
case '$_POST["1"]':
echo 'The actual size of a 1" x 2"<br><br>';
echo '<span style="color:blue;">3/4" x 1-1/2"</span<br/>';
break;
case '$_POST["2"]':
echo 'The actual size of a 1" x 3"<br><br>';
echo '<span style="color:blue;">3/4” x 2-1/2”</span<br/>';
break;
case '3':
echo 'The actual size of a 1" x 4"<br><br>';
echo '<span style="color:blue;">3/4” x 3-1/2”</span<br/>';
break;
case '4':
echo 'The actual size of a 1" x 5"<br><br>';
echo '<span style="color:blue;">3/4” x 4-1/2”</span<br/>';
break;
case '5':
echo 'The actual size of a 1" x 6"<br><br>';
echo '<span style="color:blue;">3/4” x 5-1/2”</span<br/>';
break;
case '6':
echo 'The actual size of a 1" x 7"<br><br>';
echo '<span style="color:blue;">3/4” x 6-1/4”</span<br/>';
break;
case '7':
echo 'The actual size of a 1" x 8"<br><br>';
echo '<span style="color:blue;">3/4” x 7-1/4”</span<br/>';
break;
case '8':
echo 'The actual size of a 1" x 10"<br><br>';
echo '<span style="color:blue;">3/4” x 9-1/4”</span<br/>';
break;
case '9':
echo 'The actual size of a 1" x 12"<br><br>';
echo '<span style="color:blue;">3/4” x 11-1/4”</span<br/>';
break;
case '10':
echo 'The actual size of a 2" x 4"<br><br>';
echo '<span style="color:blue;">1-1/2” x 3-1/2”</span<br/>';
break;
case '11':
echo 'The actual size of a 2" x 6"<br><br>';
echo '<span style="color:blue;">1-1/2” x 5-1/2”</span<br/>';
break;
case '12':
echo 'The actual size of a 2" x 8"<br><br>';
echo '<span style="color:blue;">1-1/2” x 7-1/4”</span<br/>';
break;
case '13':
echo 'The actual size of a 2" x 10"<br><br>';
echo '<span style="color:blue;">1-1/2” x 9-1/4”</span<br/>';
break;
case '14':
echo 'The actual size of a 2" x 12"<br><br>';
echo '<span style="color:blue;">1-1/2” x 11-1/4”</span<br/>';
break;
case '15':
echo 'The actual size of a 3" x 6"<br><br>';
echo '<span style="color:blue;">2-1/2” x 5-1/2” </span<br/>';
break;
case '16':
echo 'The actual size of a 4" x 4"<br><br>';
echo '<span style="color:blue;">3-1/2” x 3-1/2” </span<br/>';
break;
case '17':
echo 'The actual size of a 4" x 6"<br><br>';
echo '<span style="color:blue;">3-1/2” x 5-1/2” </span<br/>';
break;
}
}
elseif ($metric) {
switch ($size) {
case '$_POST["1"]':
echo 'The actual size of a 1" x 2"<br><br>';
echo '<span style="color:blue;">19 x 38 mm</span<br/>';
break;
case '$_POST["2"]':
echo 'The actual size of a 1" x 3"<br><br>';
echo '<span style="color:blue;">3/4” x 2-1/2”</span<br/>';
break;
case '3':
echo 'The actual size of a 1" x 4"<br><br>';
echo '<span style="color:blue;">3/4” x 3-1/2”</span<br/>';
break;
case '4':
echo 'The actual size of a 1" x 5"<br><br>';
echo '<span style="color:blue;">3/4” x 4-1/2”</span<br/>';
break;
case '5':
echo 'The actual size of a 1" x 6"<br><br>';
echo '<span style="color:blue;">3/4” x 5-1/2”</span<br/>';
break;
case '6':
echo 'The actual size of a 1" x 7"<br><br>';
echo '<span style="color:blue;">3/4” x 6-1/4”</span<br/>';
break;
case '7':
echo 'The actual size of a 1" x 8"<br><br>';
echo '<span style="color:blue;">3/4” x 7-1/4”</span<br/>';
break;
case '8':
echo 'The actual size of a 1" x 10"<br><br>';
echo '<span style="color:blue;">3/4” x 9-1/4”</span<br/>';
break;
case '9':
echo 'The actual size of a 1" x 12"<br><br>';
echo '<span style="color:blue;">3/4” x 11-1/4”</span<br/>';
break;
case '10':
echo 'The actual size of a 2" x 4"<br><br>';
echo '<span style="color:blue;">1-1/2” x 3-1/2”</span<br/>';
break;
case '11':
echo 'The actual size of a 2" x 6"<br><br>';
echo '<span style="color:blue;">1-1/2” x 5-1/2”</span<br/>';
break;
case '12':
echo 'The actual size of a 2" x 8"<br><br>';
echo '<span style="color:blue;">1-1/2” x 7-1/4”</span<br/>';
break;
case '13':
echo 'The actual size of a 2" x 10"<br><br>';
echo '<span style="color:blue;">1-1/2” x 9-1/4”</span<br/>';
break;
case '14':
echo 'The actual size of a 2" x 12"<br><br>';
echo '<span style="color:blue;">1-1/2” x 11-1/4”</span<br/>';
break;
case '15':
echo 'The actual size of a 3" x 6"<br><br>';
echo '<span style="color:blue;">2-1/2” x 5-1/2” </span<br/>';
break;
case '16':
echo 'The actual size of a 4" x 4"<br><br>';
echo '<span style="color:blue;">3-1/2” x 3-1/2” </span<br/>';
break;
case '17':
echo 'The actual size of a 4" x 6"<br><br>';
echo '<span style="color:blue;">3-1/2” x 5-1/2” </span<br/>';
break;
}
}
?>
【问题讨论】：
标签： php switch-statement