如何获取多个选择框中的选择框的值？ [英] How to get multiple selected values of select box in php?
问题描述
我有一个html表单，其中有一个选择列表框，您可以从中选择多个值，因为其multiple属性设置为multiple。考虑表单方法是GET。表单的html代码如下：
I have a html form which has a select list box from which you can select multiple values because its multiple property is set to multiple. Consider form method is 'GET'. The html code for the form is as follows:
<html>
<head>
<title>Untitled Document</title>
</head>
<body>
<form id="form1" name="form1" method="get" action="display.php">
<table width="300" border="1">
<tr>
<td><label>Multiple Selection </label> </td>
<td><select name="select2" size="3" multiple="multiple" tabindex="1">
<option value="11">eleven</option>
<option value="12">twelve</option>
<option value="13">thirette</option>
<option value="14">fourteen</option>
<option value="15">fifteen</option>
<option value="16">sixteen</option>
<option value="17">seventeen</option>
<option value="18">eighteen</option>
<option value="19">nineteen</option>
<option value="20">twenty</option>
</select>
</td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="Submit" value="Submit" tabindex="2" /></td>
</tr>
</table>
</form>
</body>
</html>
我想在display.php页面的选择列表框中显示所选的值。那么如何使用$ _GET []数组在display.php页面上访问所选的值。
I want to display the selected values in select list box on display.php page. So how are the selected values accessed on display.php page using $_GET[] array.
推荐答案
$ _ GET ['select2'] 作为选项数组，只需在 select元素的名称中添加方括号，如下所示：
If you want PHP to treat $_GET['select2'] as an array of options just add square brackets to the name of the select element like this: <select name="select2[]" multiple …
然后你可以在PHP脚本中访问数组
Then you can acces the array in your PHP script
<?php
header("Content-Type: text/plain");
foreach ($_GET['select2'] as $selectedOption)
echo $selectedOption."\n";
$ _ GET c $ c> $ _ POST ，取决于< form method =...值。
$_GET may be substituted by $_POST depending on the <form method="…" value.
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