Form submit PHP code broken only in Wordpress - php

Question

I have a simple form for submitting some data into the MySQL DB. On local machine works just fine, but inside a Wordpress page template doesn't work anymore, without getting me any error. The form is inside a page "sitename.com/upload" and i get redirected after submit to the same page (as shown in the link bar), but with 404 page content. I tried without get_header();and get_footer();tags because I thought it may conflict with some variables from wp, but I got the same result.
Here is the code:
<?php function renderForm($name, $price, $error)
{
// if there are any errors, display them
if ($error != '')
{
echo '<div style="padding:4px; border:1px solid red; color:red;">'.$error.'</div>';
}
?>
***** LONG HTML FORM IS HERE *****
<?php
}
// connect to the database
include('connect-db.php');
// check if the form has been submitted. If it has, start to process the form and save it to the database
if (isset($_POST['submit']))
{
// get form data, making sure it is valid
$name = mysqli_real_escape_string($connection, htmlspecialchars($_POST['name']));
$price = mysqli_real_escape_string($connection, htmlspecialchars($_POST['price']));
$shortdesc = mysqli_real_escape_string($connection, htmlspecialchars($_POST['shortdesc']));
$longdesc = mysqli_real_escape_string($connection, htmlspecialchars($_POST['longdesc']));
$current_version = mysqli_real_escape_string($connection, htmlspecialchars($_POST['current-version']));
$content_rating = $_POST['contentrating'];
if(isset($_POST['category'])) {
$category = implode(",", $_POST['category']);
} else {
$category = "";
}
if(isset($_POST['platform'])) {
$platform = implode(",", $_POST['platform']);
} else {
$platform = "";
}
if(isset($_POST['devices'])) {
$devices = implode(",", $_POST['devices']);
} else {
$devices = "";
}
if(isset($_POST['gamemodes'])) {
$gamemodes = implode(",", $_POST['gamemodes']);
} else {
$gamemodes = "";
}
//FILE UPLOAD
$images = array();
if(isset($_FILES['files'])){
$errors= array();
foreach($_FILES['files']['tmp_name'] as $key => $tmp_name ){
$file_name =$_FILES['files']['name'][$key];
$file_size =$_FILES['files']['size'][$key];
$file_tmp =$_FILES['files']['tmp_name'][$key];
$file_type=$_FILES['files']['type'][$key];
if($file_size > 2097152){
$errors[]='File size must be less than 2 MB';
}
$desired_dir="uploads/images";
if(empty($errors)==true){
if(is_dir($desired_dir)==false){
mkdir("$desired_dir", 0700); // Create directory if it does not exist
}
if(is_dir("$desired_dir/".$file_name)==true){
move_uploaded_file($file_tmp,"uploads/images/".$file_name);
}else{ //rename the file if another one exist
$file_name = time()."-".$file_name;
$new_dir="uploads/images/".$file_name;
rename($file_tmp,$new_dir) ;
}
$images[] = $file_name;
}else{
print_r($errors);
}
}
if(empty($error)){
$imglinks = implode(" | ", $images);
}
}
//FILE UPLOAD END
// check to make sure both fields are entered
if ($name == '' || $price == '')
{
// generate error message
$error = 'ERROR: Please fill in all required fields!';
// if either field is blank, display the form again
renderForm($name, $price, $error);
}
else
{
$sql = "INSERT INTO vr_submitted_apps ". "(name, price, shortdesc, longdesc, crtvers, rating, category, platform, devices, gamemodes, images, dtime) ". "VALUES('$name','$price','$shortdesc','$longdesc','$current_version','$content_rating','$category','$platform','$devices','$gamemodes', '$imglinks', NOW())";
// save the data to the database
mysqli_query( $connection, $sql )
or die(mysql_error());
$itemId = mysqli_insert_id($connection);
setcookie("last-inserted-id", $itemId, time() + (86400 * 3), "/"); // 86400 = 1 day
// once saved, redirect back to the view page
header("Location: uploader.html");
}
}
else
// if the form hasn't been submitted, display the form
{
renderForm('','','');
}

Answer 1

Problem solved: Wordpress has something important internal reserved for "name" parameter.