我在一个名为addSection.php 的页面中编写了以下代码
<from class="mainSettingsForm add" action="" method="post">
<h1>Add new section</h1>
<p>
<label>new section</label>
<input type="text" name="section_name" placeholder="section title">
<label>section status</label>
<select name="sectionStatus">
<option value="active">active</option>
<option value="disActive">disActive</option>
</select>
</p>
<p>
<label>section location</label>
<select name="sectionLocation">
<option value="Side">Side</option>
<option value="Body">Body</option>
</select>
</p>
<label>section description</label>
<textarea name="sectionDesc" placeholder="Section description"></textarea>
<input class="btn-primary" type="submit" name="submit" value="Add">
</from>以及名为Sections.php 的页面中的以下代码
<h2><a href="?page=sections&action=add">Add new section</a></h2>
<?php
if ($_POST OR @$_GET['action'])
{
if (isset($_GET['action']) AND $_GET['action']=="add")
{
include 'views/addSection.php';
if (isset($_POST['submit'])&&$_POST['submit']=="Add")
echo 'ok';
}
}
else
{
include 'views/sections.php';
}
?>这份声明if（isset（$_POST[‘submit’]）&$_POST['submit']=="添加"）echo"ok"；永远不会被执行，因为它总是给出false值，如何使isset（$POST〔'submit〕）语句给出true值来执行条件？
您的语句永远不可能为true，因为第二个IF语句只针对$_GET变量，然后您尝试访问其中的$_POST。您不能同时拥有GET和POST。
你也有一些拼写错误——$_GET['action']将是"添加"而不是"添加"，你的HTML中有<from>而不是<form>。
if ( isset( $_POST['submit'] ) && $_POST['submit'] == "Add" ){
echo "this is a POST and submit is add";
} elseif ( isset( $_GET['action']) && $_GET['action'] == "Add" ){
echo "this is a GET and submit is add";
} else {
include 'views/sections.php';
}
请尝试我的代码。这将有助于你理解你在传递什么。我还修复了表单标签——正如@Hobo Sapiens所建议的那样。
<?php print_r($_REQUEST);?>
<form class="mainSettingsForm add" action="" method="post">
<h1>Add new section</h1>
<p>
<label>new section</label>
<input type="text" name="section_name" placeholder="section title">
<label>section status</label>
<select name="sectionStatus">
<option value="active">active</option>
<option value="disActive">disActive</option>
</select>
</p>
<p>
<label>section location</label>
<select name="sectionLocation">
<option value="Side">Side</option>
<option value="Body">Body</option>
</select>
</p>
<label>section description</label>
<textarea name="sectionDesc" placeholder="Section description"></textarea>
<input class="btn-primary" type="submit" name="submit" value="Add">
</form>