[英]PHP Form Get and Post Output with If statement to output results on same page
我正在学习PHP并正在处理表单。 我有一个任务是在同一页面上创建一个表单,一个GET和一个POST,并将结果发布在每个表单下面的同一页面上。
我创建了一个if / else语句,但也许我错了。
<div>
<h1>POST Method Form</h1>
<form method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>" >
First Name:<br>
<input type="text" name="firstname"><br>
Last Name:<br>
<input type="text" name="lastname"><br>
E-mail: <input type="text" name="email"><br>
Database Utilized: <br>
<input type="checkbox" name="dba" value="SQL Server">SQL Server<br>
<input type="checkbox" name="dba" value="Oracle">Oracle<br>
<input type="checkbox" name="dba" value="Access">Microsoft Access<br>
<br>
<input type="submit" name="postsubmit" value="Submit">
</form>
<br>
<h1>Database Consulting POST Form Results</h1>
<p>
<?php
if (isset($_POST['postsubmit'])) {
$firstname = $_POST['firstname'];
$lastname = $_POST['laststname'];
$email = $_POST['email'];
$dba = $_POST['dba'];
echo $firstname; <br>
echo $lastname; <br>
echo $email; <br>
echo $dba; <br>
}
else {
echo "Please enter correct values in form and hit submit";
}
?>
</p>
<br>
<h1>GET Method Form</h1>
<form method="GET" action="<?php echo $_SERVER['PHP_SELF']; ?>" >
First name:<br>
<input type="text" name="firstname_get"><br>
Last name:<br>
<input type="text" name="lastname_get"><br>
E-mail: <input type="text" name="email_get"><br>
Database Utilized<br>
<input type="checkbox" name="dba_get" value="SQL Server">SQL Server<br>
<input type="checkbox" name="dba_get" value="Oracle">Oracle<br>
<input type="checkbox" name="dba_get" value="Access">Microsoft Access<br>
<br>
<input type="submit" name="getsubmit" value="Submit">
</form>
<br>
<br>
<h1>Database Consulting GET Form Results</h1>
<p>
<?php
if (isset($_GET['getsubmit'])) {
$firstname_get = $_GET['firstname'];
$lastname_get = $_GET['laststname'];
$email_get = $_GET['email'];
$dba_get = $_GET['dba'];
echo $firstname_get; <br>
echo $lastname_get; <br>
echo $email_get; <br>
echo $dba_get; <br>
}
else {
echo "Please enter correct values in form and hit submit";
}
?>
</p>
</div>
你将$_GET['lastname']
拼错为$_GET['laststname']
,将你的动作改为action=""
并将你的<br>
包含在你的echo语句中,如echo $firstname .'<br>';
而不是echo $firstname; <br>
echo $firstname; <br>
<h1>POST Method Form</h1>
<form method="POST" action="" >
First Name:<br>
<input type="text" name="firstname"><br>
Last Name:<br>
<input type="text" name="lastname"><br>
E-mail: <input type="text" name="email"><br>
Database Utilized: <br>
<input type="checkbox" name="dba[]" value="SQL Server">SQL Server<br>
<input type="checkbox" name="dba[]" value="Oracle">Oracle<br>
<input type="checkbox" name="dba[]" value="Access">Microsoft Access<br>
<br>
<input type="submit" name="postsubmit" value="Submit">
</form>
<br>
<h1>Database Consulting POST Form Results</h1>
<p>
<?php
if (isset($_POST['postsubmit'])) {
$firstname = $_POST['firstname'];
$lastname = $_POST['lastname'];
$email = $_POST['email'];
$dba = $_POST['dba'];
echo $firstname .'<br>';
echo $lastname .'<br>';
echo $email .'<br>';
foreach ($dba as $database) {
echo $database .'<br>';
}
}
else {
echo "Please enter correct values in form and hit submit";
}
?>
</p>
首先,我建议有一个名为action的隐藏字段:
<input type="hidden" name="action" value="submituserinfo" />
然后把你的php逻辑放在顶部而不是底部,在页面显示之前进行处理! 你的PHP_SELF交易很好。 但你的逻辑是关闭的。 正确的逻辑应该是:
if(isset($_REQUEST['action']) && $_REQUEST['action']=='submituserinfo'){
//analyze the data
if($errors){
//set a var to show errors below
}else{
//enter the data, whatever
}
}
这应该让你开始朝着正确的方向前进。 如果将编码放在文档的头部,则可以更好地处理输出,甚至可以根据成功或错误使用header()进行重定向。
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