php中如何跳转,我们看下面的代码
form3.php
<html>
<head></head>
<title></title>
<script type="text/css"></script>
<form action="formprocess3.php" method="post">
<body>
<table><tr>
<td>Name</td>
<td><input type="text" name="name" /></td>
</tr>
<tr>
<td>Movie type</td>
<td><select name="movie_type" id="movie_type">
<option value="">Select a movie type...</option>
<option value="Action">Action</option>
<option value="Drama">Drama</option>
<option value="Comedy">Comedy</option>
<option value="Sci-Fi">Sci-Fi</option>
<option value="War">War</option>
<option value="Other">Other</option></select></td>
</tr>
<tr>
<td>Item type</td>
<td>
<input type="radio" name="type" value="movie" checked="checked" />Movie<br />
<input type="radio" name="type" value="actor"/>Acotr<br />
<input type="radio" name="type" value="director"/>Director<br />
</td>
</tr>
<tr>
<td></td>
<td><input type="checkbox" name="debug" id="debug" checked="checked" />
Display Debug Info
</td>
</tr>
<tr>
<td colspan="2" style="text-aligh:center">
<input type="submit" name="submit" value="Search" />
<input type="submit" name="submit" value="Add" />
</td>
<td></td>
</tr></table>
</body>
</form>
</html>
formprocess3.php
<?php
if($_POST["type"] == ‘movie‘ && $_POST["movie_type"] == ‘‘)
{
header(‘Location:form3.php‘);
}
?>
<html>
<head>
<title><?php echo $_POST[‘submit‘].‘ ‘.$_POST[‘type‘].‘ ‘.$_POST[‘name‘];?></title>
</head>
<body>
<?php
if(isset($_POST[‘debug‘])){
echo‘<pre>‘;
print_r($_POST);
echo‘</pre>‘;
}
else{
echo ‘post‘;
}
$name = ucfirst($_POST[‘name‘]);
if($_POST[‘type‘] == ‘movie‘){
$foo=$_POST[‘movie_type‘].‘ ‘.$_POST[‘type‘];
}
else{
$foo = $_POST[‘type‘];
}echo ‘<p>You are ‘. $_POST[‘submit‘] .‘int‘;
echo ($_POST[‘submit‘] == ‘Search‘)? ‘for‘:‘‘;
echo ‘a ‘. $foo .‘ named ‘. $name .‘</p>‘;
?>
</body>
</html>
注意这一句
if($_POST["type"] == ‘movie‘ && $_POST["movie_type"] == ‘‘)
{
header(‘Location:form3.php‘);
}
如果选择movie类型并且传入的movie_type为空则返回到form3.php页面中header()方法参数是以分号分割的字符串前面是Location,后面是要跳转的页面地址。
head()函数是输出一个原始的http头,php请求页面的时候会首先自动输出http头,并且值输出一次,所以这个方法必须在html文件的开头使用,前面不能有echo,print之类的输出语句,也不能有html代码和空格之类的,否则有可能调用失败。
还有一点这里有两个submit按钮但是value的值不一样,我们可以根据这个值来进行不同的逻辑处理。
php页面跳转,码迷,mamicode.com
时间: 2024-12-23 21:17:24