将隐藏值传递给输入标记中的php变量
[英]Passing hidden value to a php variable in input tag
问题描述
I am new to coding and pardon me if it a silly thing I am missing. 
我是新手，如果我想念这很愚蠢的事情，请原谅我。 I have searched through the forum & did not find an answer that suits my need. 我已经在论坛中搜索过，没有找到适合我需要的答案。 I have 2 files: jobs.php & jobprocess.php 我有2个文件：jobs.php和jobprocess.php
Jobs.php goes as Jobs.php变成
<?php session_start();
include('dbConnect.php');
$q1="abc";
$q2="pqr";
$q3="xyz";
$opportunity=29;
echo "Opportunity is". $opportunity;
?>
<html>
<head>
<div align="center">
<form method="post" method="post" action="jobprocess.php">
<input type="text" name="q1" placeholder="<?php echo $q1;?>"><br>
<input type="text" name="q2" placeholder="<?php echo $q2;?>"><br>
<input type="text" name="q3" placeholder="<?php echo $q3;?>"><br>
<input type="hidden" name="opportunity" value="<?php echo $opportunity;?>">
<ul class="actions">
<li><input type="submit" name="submit" value="I would like to join!! "></li>
</ul>
</form>
</div>
</head>
<body>
</body>
</html>
jobprocess.php goes with the code jobprocess.php与代码一起
<?php session_start();
include('dbConnect.php');
$opportunity = $_GET['opportunity'];
echo "opportunity is " . $opportunity;
?>
Unfortunately, the above code is not defining value="29" for opportunity on 2nd page. 不幸的是，以上代码没有在第二页上为机会定义value =“ 29”。 Thanks in advance 提前致谢
2 个解决方案
解决方案1
1 2016-09-11 07:04:20
If you echo anything before the html tag it would effectively make the html invalid. 如果您在html标记之前回显任何内容，则将有效地使html无效。 Also, the head of the document MUST not have presentational html elements such as forms , divs etc 另外，文档的head一定不能包含表示forms html元素，例如forms ， divs等。
<?php
session_start();
include('dbConnect.php');
$q1="abc";
$q2="pqr";
$q3="xyz";
$opportunity=29;
?>
<html>
<head>
<title>must have a title</title>
</head>
<body>
<?php
echo "Opportunity is". $opportunity;
?>
<div align="center">
<form method="post" method="post" action="jobprocess.php">
<input type="text" name="q1" placeholder="<?php echo $q1;?>"><br>
<input type="text" name="q2" placeholder="<?php echo $q2;?>"><br>
<input type="text" name="q3" placeholder="<?php echo $q3;?>"><br>
<input type="hidden" name="opportunity" value="<?php echo $opportunity;?>">
<ul class="actions">
<li><input type="submit" name="submit" value="I would like to join!! "></li>
</ul>
</form>
</div>
</body>
</html>
And because the form is set to POST you should probably check and use the POSTed variable rather than a GET variable 并且由于表单设置为POST您应该检查并使用POSTed变量而不是GET变量
<?php
session_start();
include('dbConnect.php');
$opportunity = $_POST['opportunity'];
echo "opportunity is " . $opportunity;
?>
解决方案2
0 2016-09-11 16:10:42
Surprisingly my answer that suggested using session variable instead of hidden form field was deleted?! 令人惊讶的是，我的建议使用会话变量而不是隐藏的表单字段的答案已删除？ I guess session variables are illegal now? 我猜会话变量现在是非法的吗？
The answer was chosen for the best answer even. 答案被选为最佳答案。
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