$ _Post似乎在表单提交php后没有返回变量

Question

fairly new php user here.

I've been struggling to find the solution to a very simple problem.

I'm currently creating a feedback system for my school where people can submit a text with a title to certain students, yet after submitting the form it seems the $_Post of my fields are empty.

My html looks like this (The form to be submitted is in a bootstrap modal)

HTML

<div class="modal fade" id="modalWriteFeedback" tabindex="-1" role="dialog">
    <div class="modal-dialog" role="document">
        <form action="php/feedbackPHP.php" method="post">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                    <h3 class="modal-title" id="modalTitleWriteFeedback">Create New Feedback</h3>
                </div>
                <div class="modal-body" id="modalContentWriteFeedback">
                    <div class="form-group">
                        <label for="txtFeedback">Title:</label>
                        <input name="title" class="form-control required" type="text" id="txtFeedback">
                    </div>
                    <div class="form-group">
                        <label for="feedbackText">Description:</label>
                        <textarea class="form-control required" id="feedbackText" rows="15" name="content"></textarea>
                    </div>
                    <input type="submit" class="btn-success" name="btnSendFeedback" value="Send">
 
                </div>
            </div>
        </form>
    </div>
</div>

"title" and "content" are to be submitted, which I'm trying in my "feedbackPHP.php"

feedbackPHP.php

<?php
$servername = "*********";
$username = "**********";
$password = "***********";
 
    // Create connection
$db = new mysqli($servername, $username, $password);
 
    // Check connection
if ($db->connect_error) {
       die("Connection failed: " . $db->connect_error);
}
 
$feedbackTitle = $_post['title'];
$feedbackContent = $_post['content'];
$query = /**inserting data in db**/;
 
echo $feedbackTitle . "<- supposed to not be empty";
 
mysqli_query($db, $query) or die('msg:' + $feedbackTitle);
 
//Step3
$result = mysqli_query($db, $query);
mysqli_close($db);
 
?>

The submit recognized the .php file, and only returns the "<- supposed to not be empty" part.

I have tried with a simple form:

<form action="php/feedbackPHP.php" method="POST">
    <input type="text" name="title" id="txtText">
    <input type="textarea" name="content" id="txtContent">
    <input type="submit" value="go">
</form>

With this as .php

<?php
/**connect to db part**/
 
$feedbackTitle = $_POST['title'];
$feedbackContent = $_POST['content'];
 
echo $feedbackTitle . " " . $feedbackContent;
 
$query = /**insert into db**/;
 
mysqli_query($db, $query) or die('msg:' + $feedbackTitle);
 
//Step3
$result = mysqli_query($db, $query);
mysqli_close($db);
 
?>

And $feedbackTitle & $feedbackContent are working perfectly, even adding the right values in my database.

So according to this is it a problem with the bootstrap modal and the form in it?

I have tried with an Ajax request, the $_POST still seem to be empty. I tried almost every answer on the forum (been busy for almost a day now), but none seem to be working either.

Thanks in advance.

</div>

Answer 1

Use $_POST, not $_post :-)

Php is case sensitive, and it will be the same with $_GET, $_SESSION, $_SERVER, [...]

http://php.net/language.variables.superglobals