PHP iFrame Upload Confirmation - php

Question

So i have a file upload feature on my site and rather than redirect to the php script page, I want to have an iframe that displays the message returned by the script. So here's my html:
<iframe class="iframe" name="my_iframe" src="upload_file.php" style="display:none;"></iframe>
<form id="uploadForm" action="upload_file.php" method="post" enctype="multipart/form-data" target="my_iframe">
So basically I want to hide my iframe UNTIL I the upload process finishes and the script returns a message. Here's my php script:
<?php
ini_set('display_errors', 'On');
error_reporting(E_ALL | E_STRICT);
session_start();
$allowedExts = array("doc", "docx");
$extension = pathinfo( $_FILES["upload"]["name"],PATHINFO_EXTENSION);
$username = $_SESSION["username"];
if (($_FILES["upload"]["size"] < 200000)
&& in_array($extension, $allowedExts)) {
if ($_FILES["upload"]["error"] > 0)
{
echo "Return Code: " . $_FILES["upload"]["error"] . "<br />";
}
else
{
echo "Upload: " . $_FILES["upload"]["name"] . "<br />";
echo "Type: " . $_FILES["upload"]["type"] . "<br />";
echo "Size: " . ($_FILES["upload"]["size"] / 1024) . " Kb<br />";
echo "Temp file: " . $_FILES["upload"]["tmp_name"] . "<br />";
$dir_exists = is_dir("/disks/*/*/*/*/". $_SESSION["FirstName"] ."-".$_SESSION["username"]."/");
$file_exists = file_exists("/disks/*/*/*/*/".$_SESSION["FirstName"] ."-".$_SESSION["username"]."/" . $_FILES["upload"]["name"]);
$folderName=$_SESSION["FirstName"];
$baseDir = "/disks/*/*/*/*/";
// Create directory if it does not exist
if (! $dir_exists) {
if (is_writable($baseDir)) {
mkdir($baseDir . $_SESSION["FirstName"]."-".$_SESSION["username"]);
} else {
trigger_error($baseDir. " is not writeable");
}
}
if ($file_exists) {
echo $_FILES["upload"]["name"] . " already exists. ";
} else {
$link = new PDO('mysql:host=***;dbname=***;charset=UTF-8','***','***');
$proptype = $_POST["prop_cat"];
$stmt = $link->prepare("UPDATE Table SET `PType`=:proptype WHERE Username=:username");
$stmt->bindParam(':username', $username);
$stmt->bindParam(':proptype', $proptype);
$stmt->execute();
move_uploaded_file($_FILES["upload"]["tmp_name"],
$baseDir. $_SESSION["FirstName"] ."-".$_SESSION["username"]."/". $_FILES["upload"]["name"]);
echo "Stored in: " . $baseDir. $_SESSION["FirstName"] ."-".$_SESSION["username"]."/". $_FILES["upload"]["name"];
}
}
} else {
echo "Invalid file";
}
?>
So basically to sum up my question: How can I hide the iframe until upload finishes, and then display it with the message that the user can close like an alert box?

Answer 1

Can you echo the Iframe at the end of the upload instead of trying to hide it then show it at the top?
if ($file_exists) {
echo $_FILES["upload"]["name"] . " already exists. ";
} else {
$link = new PDO('mysql:host=***;dbname=***;charset=UTF-8','***','***');
$proptype = $_POST["prop_cat"];
$stmt = $link->prepare("UPDATE Table SET `PType`=:proptype WHERE Username=:username");
$stmt->bindParam(':username', $username);
$stmt->bindParam(':proptype', $proptype);
$stmt->execute();
move_uploaded_file($_FILES["upload"]["tmp_name"],
$baseDir. $_SESSION["FirstName"] ."-".$_SESSION["username"]."/". $_FILES["upload"]["name"]);
echo "Stored in: " . $baseDir. $_SESSION["FirstName"] ."-".$_SESSION["username"]."/". $_FILES["upload"]["name"];
/// load the iframe now ///////////////
echo '<iframe class="iframe" name="my_iframe" src="upload_file.php"></iframe>';
///////////////////////////////////////
}