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File Upload and Conversion

File Upload and Conversion

File Upload and Conversion

Some time ago I created a form with some functions for uploading files to my Web server. No real problem there but then I decided to also repurpose a function for resizing the image but I am having difficulty in getting the new file name and placing it into the table. I know why but I'm not sure what to do about it. Any ideas?


include_once $_SERVER ['DOCUMENT_ROOT'] . "/functions/common.php";
// Limit access to Administrators
global $Message;
global $ActionType;
global $PostID;

$editFormAction = $_SERVER['PHP_SELF'];

// Select form
$searchSQL = "SELECT ID, AdminName AS SelectText
			  FROM albums 
			  ORDER BY AdminName";

// Updates and Inserts
$AdminName = (isset($_POST["AdminName"]) && !empty($_POST["AdminName"])) ? $_POST["AdminName"] : "";
$ImageName = (isset($_POST["ImageName"]) && !empty($_POST["ImageName"])) ? $_POST["ImageName"] : "";
$Description = (isset($_POST["Description"]) && !empty($_POST["Description"])) ? addslashes($_POST["Description"]) : "";
$PostID = (isset($_POST["ID"]) && !empty($_POST["ID"])) ? $_POST["ID"] : "";

if ($AdminName && $ImageName && $Description && !$PostID) :
	$sqlInsert = sprintf("INSERT INTO albums (AdminName, ImageName, Description)
				  VALUES ('%s','%s', '%s')",
	DBConnect($sqlInsert, "Insert", "dbname");
	$PostID = DBConnect("No Query Needed", "NewID", "dbname");
	$Message = ConvertImage($_FILES['FileUpload'], "370");
elseif ($PostID) :
	$sqlUpdate = sprintf("UPDATE albums 
						  SET AdminName='%s', ImageName='%s', Description='%s' 
						  WHERE ID=%u",
	DBConnect($sqlUpdate, "Update", "dbname");
	$Message = ConvertImage($_FILES['FileUpload'], "370");

// Open selected record to view
$SearchID = (isset($_POST["SearchID"]) && !empty($_POST["SearchID"])) ? $_POST["SearchID"] : "";
$sqlView = "SELECT * FROM albums WHERE ID='".$SearchID."' OR ID='".$PostID."'";
$rowView = DBConnect($sqlView, "Select", "dbname");

$AdminName = ($rowView['AdminName']) ? $rowView['AdminName'] : $AdminName;
$ImageName = ($rowView['ImageName']) ? $rowView['ImageName'] : $rowView['ImageName'];
$Description = ($rowView['Description']) ? $rowView['Description'] : $Description;
$PostID = ($rowView['ID']) ? $rowView['ID'] : $PostID;

<title>Photo Album Administration</title>
	<?php include("../includes/pageheader.php"); ?>
<script language="JavaScript">
function validateFormOnSubmit(theForm) {
var reason = "";

  reason += validateEmpty(theForm.AdminName);
  reason += validateEmpty(theForm.Description);

  if (reason != "") {
    alert("Missing Required Entry Details\n\n" + reason);
    return false;

  return true;

function validateEmpty(fld) {
    var error = "";
    if (fld.value.length == 0) {
        fld.style.background = 'Yellow'; 
        error = "Required field(s) missing.\n"
    } else {
        fld.style.background = 'White';
    return error;   
// -->

<body id="Body">

<div id="CenterContent">

	<?=SearchForm($searchSQL, $editFormAction, $PostID, "dbname");?>

	if (isset($_SESSION['ActionType']) && !empty($_SESSION['ActionType'])) :
		$ActionType = $_SESSION['ActionType']; 
		$_SESSION['ActionType'] = "";

	<form method="POST" onsubmit="return validateFormOnSubmit(this)" enctype="multipart/form-data" name="AdminDMVforms" action="<?=$editFormAction?>">
			<legend for="PhotoAlbums">Photo Albums</legend>
			<p><label for="AdminName">Admin Name</label>
				<input type="text" name="AdminName" value="<?=$AdminName?>" size="25">
			<p><label for="Description">Description</label>
				<textarea name="Description" rows="5" cols="65" id="Description"><?=stripslashes($Description)?></textarea>
				<input type="hidden" name="ImageName" value="<?=$Message?>" size="25">
			<p><p><label for="File">Select File</label>
				<input name="FileUpload" type="file">
				<input type="hidden" name="ID" value="<?=$rowView['ID']?>">
	if (isset($rowView['ImageName']) && !empty($rowView['ImageName'])) :
		Message($rowView['ImageName']."<br>$Message has been uploaded!");
		FormSubmit($PostID, $editFormAction, "Delete this Album entry?");



Here is the upload and conversion function.


function ConvertImage($ImgFile, $MaxDim) {
    $folderPerms = 0755;

       // if ($error == UPLOAD_ERR_OK):
            $tmp_name = $ImgFile['tmp_name'];
            $ImgName = $ImgFile['name'];
            list($Imgwidth, $Imgheight, $Imgtype, $attr) = getimagesize($tmp_name);
			$NewName = str_replace(' ','_', strtolower(trim(pathinfo($ImgName,PATHINFO_FILENAME)))).".jpg";

            switch ($Imgtype) :
                case 1 : $src = imagecreatefromgif($tmp_name);  break;
                case 2 : $src = imagecreatefromjpeg($tmp_name); break;
                case 3 : $src = imagecreatefrompng($tmp_name);  break;
                case 6 : $src = imagecreatefrombmp($tmp_name); break; // Custom function
                default : die("Unsupported image type. You may upload only JPG, GIF, PNG or BMP images.");
			if($src == false) die("Unable to create image");

                if($Imgwidth > $MaxDim):
                    $newWidth = $MaxDim;
                    $newHeight = round($Imgheight * ($newWidth / $Imgwidth));
                    $newHeight = $Imgheight;
                    $newWidth = $Imgwidth;

				$tmp = imagecreatetruecolor($newWidth, $newHeight);
                imagecopyresampled($tmp, $src, 0, 0, 0, 0,$newWidth, $newHeight, $Imgwidth, $Imgheight);
                $__filename = sprintf($FilePath . $NewName,'');
				$result = imagejpeg($tmp, $__filename, 75);
                //$return[] = array('filename'=>$__filename, 'original'=>false, 'height'=>$newHeight, 'width'=>$newWidth, 'status'=>$result);
				$return = $NewName;
       // endif;
    return $return;

RE: File Upload and Conversion

this line


$Message = ConvertImage($_FILES['FileUpload'], "370"); 

is misleading. $Message is in fact the fileName without the path. If you want the whole path and file name then change this


$return = $NewName; 


$return = $__filename; 

RE: File Upload and Conversion

No, I want to enter only the file name into the table, not the path.

RE: File Upload and Conversion

fine. then that is contained in your $Message variable.

RE: File Upload and Conversion

Yes, I know but $Message is being declared after the database inserts and I can see no way to place it before them and still have it work. I suppose I could put the functionality into the ConvertImage() but that would be somewhat problematic for new entries even though it would work okay for existing one. If I do that, I can probably also add some facility to delete the old image if a new one is being uploaded in its place.

RE: File Upload and Conversion

Given that by the time the conversion is done you know the record id why can't you just do an update?

RE: File Upload and Conversion

Well, I can of course, but what about new entries?

RE: File Upload and Conversion

you do a second update after the if ... endif block.

but we don't know your database schema here. if you are inserting the image file name into the same table (Albums), why don't you just do the convertImage before the if ... endif block?

I'm clearly missing something.

RE: File Upload and Conversion

After looking at the code, I too am puzzled why can't you do this?:


if ($AdminName && $ImageName && $Description && !$PostID) :
$Message = ConvertImage($_FILES['FileUpload'], "370");
$sqlInsert = sprintf("INSERT INTO albums (AdminName, ImageName, Description) VALUES ('%s','%s', '%s')", $AdminName, $Messsage, $Description); DBConnect($sqlInsert, "Insert", "dbname"); $PostID = DBConnect("No Query Needed", "NewID", "dbname"); elseif ($PostID) : $sqlUpdate = sprintf("UPDATE albums SET AdminName='%s', ImageName='%s', Description='%s' WHERE ID=%u", $AdminName, $ImageName, $Description, $PostID); DBConnect($sqlUpdate, "Update", "dbname"); $Message = ConvertImage($_FILES['FileUpload'], "370"); endif;

Phil AKA Vacunita
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

Web & Tech

RE: File Upload and Conversion

I guess my nose got in the way of the obvious but I spotted it before seeing your reply. Thank you and it works now! Now that it's working, I had to add a way to make it update the text portions of an entry even if a new photo was not uploaded but that was easy to do. There are still a few small bugs but they are unrelated to this question.

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