image resize problem

garydt · March 24, 2007

ok, i did those changes and i got

Notice: Undefined index: MM_Username in C:\Program Files\xampp\htdocs\epeople\uploadforom3.php on line 58

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\epeople\uploadforom3.php:58) in C:\Program Files\xampp\htdocs\epeople\uploadforom3.php on line 65

<?php require_once('Connections/elvisdb.php'); ?>
<?php
session_start();
error_reporting(E_ALL);
$editFormAction = '';
$max_file_size = 1024*1024*1024; //1MB

if(isset($_POST['sent'])){
unset($submit);
if (isset($_POST['sent'])) $submit = true;
else die('Error: No file got sent');

$fieldname = 'file';
function resizeimage($name){
$filename = './uploads/'.$name['name'];
	if(file_exists($filename)) {
		$image		= imagecreatefromjpeg($filename); //unresized image
		$im_info	= getimagesize($filename); //unresized image
		$im_width	= $im_info[0];
		$im_height	= $im_info[1];
		$im_flag	= $im_info[2];

		//max height: 100px; max width: 100px
		if($im_width >= $im_height) {
			$im_divice	= $im_width / 100;
		}else {
			$im_divice	= $im_height / 100;
		}
		$thumb_width	= $im_width / $im_divice;
		$thumb_height	= $im_height / $im_divice;

		//create empty image
		$thumb	= imagecreatetruecolor($thumb_width, $thumb_height);
		//resize image
		imagecopyresampled($thumb, $image, 0, 0, 0, 0, $thumb_width, $thumb_height, $im_width, $im_height);

		if(imagejpeg($thumb, "thumbnails/".$newimage, 80)) { //image-resource, filename, quality
			return 1;
		}

		imagedestroy($thumb); //destroy temporary image-resource
		imagedestroy($image); //destroy temporary image-resource
	}
}

// make a note of the directory that will recieve the uploaded file 
// full url $uploadsDirectory = $_SERVER['DOCUMENT_ROOT'] . $directory_self . 'uploads/'; 
$uploadsDirectory = './uploads/'; 

//Upload image
$uploadFilename = $uploadsDirectory.$fieldname['name'];

// now let's move the file to its final location and allocate the new filename to it 
move_uploaded_file($fieldname['tmp_name'], $uploadFilename);

resizeimage($fieldname['name']);

$user = $_SESSION['MM_Username'];


mysql_select_db($database_elvisdb, $elvisdb);
$insertSQL = sprintf("INSERT INTO images (imageName, usnm) VALUES ('$uploadFilename', '$user')");

  $Result1 = mysql_query($insertSQL, $elvisdb) or die(mysql_error());
  header("Location: userpage.php");
}

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>

<body>
<form name="form1" id="Upload" action="<?php echo $editFormAction; ?>" enctype="multipart/form-data" method="POST"> 
     
        <h1> 
            Upload form 
        </h1> 
         
        <p> 
            <input type="hidden" name="MAX_FILE_SIZE" value="<?php echo $max_file_size ?>"> 
        </p> 
         
        <p> 
            <label for="file">File to upload:</label> 
            <input id="file" type="file" name="file"> 
        </p>
        <p>
          <label>
          <input name="sent" type="hidden" id="sent" value="1" />
          </label>
        </p>
        <p> 
            <label for="submit">Press to...</label> 
            <input id="submit" type="submit" name="submit" value="Upload me!"> 
        </p> 
     
        <input type="hidden" name="MM_insert" value="form1">
</form> 
</body>
</html>

Lumio · March 24, 2007

that's because of

$user = $_SESSION['MM_Username'];

$_SESSION['MM_Username'] is not defined.

And the header can't get changed because of that warning.

Please read my links to learn php.

garydt · March 24, 2007

sorry, i didn't have a user logged in. I've got no errors now

but no image is uploaded and it inserts into the database an url - ./uploads/f

What does this mean?

Lumio · March 24, 2007

pardon... i didn't change $fieldname:

<?php require_once('Connections/elvisdb.php'); ?>
<?php
session_start();
error_reporting(E_ALL);
$editFormAction = '';
$max_file_size = 1024*1024*1024; //1MB

if(isset($_POST['sent'])){
unset($submit);
if (isset($_POST['sent'])) $submit = true;
else die('Error: No file got sent');

$fieldname = 'file';
function resizeimage($name){
$filename = './uploads/'.$name['name'];
	if(file_exists($filename)) {
		$image		= imagecreatefromjpeg($filename); //unresized image
		$im_info	= getimagesize($filename); //unresized image
		$im_width	= $im_info[0];
		$im_height	= $im_info[1];
		$im_flag	= $im_info[2];

		//max height: 100px; max width: 100px
		if($im_width >= $im_height) {
			$im_divice	= $im_width / 100;
		}else {
			$im_divice	= $im_height / 100;
		}
		$thumb_width	= $im_width / $im_divice;
		$thumb_height	= $im_height / $im_divice;

		//create empty image
		$thumb	= imagecreatetruecolor($thumb_width, $thumb_height);
		//resize image
		imagecopyresampled($thumb, $image, 0, 0, 0, 0, $thumb_width, $thumb_height, $im_width, $im_height);

		if(imagejpeg($thumb, "thumbnails/".$newimage, 80)) { //image-resource, filename, quality
			return 1;
		}

		imagedestroy($thumb); //destroy temporary image-resource
		imagedestroy($image); //destroy temporary image-resource
	}
}

// make a note of the directory that will recieve the uploaded file 
// full url $uploadsDirectory = $_SERVER['DOCUMENT_ROOT'] . $directory_self . 'uploads/'; 
$uploadsDirectory = './uploads/'; 

//Upload image
$uploadFilename = $uploadsDirectory.$fieldname['name'];

// now let's move the file to its final location and allocate the new filename to it 
move_uploaded_file($fieldname['tmp_name'], $uploadFilename);

resizeimage($fieldname['name']);

$user = $_SESSION['MM_Username'];


mysql_select_db($database_elvisdb, $elvisdb);
$insertSQL = sprintf("INSERT INTO images (imageName, usnm) VALUES ('$uploadFilename', '$user')");

  $Result1 = mysql_query($insertSQL, $elvisdb) or die(mysql_error());
  header("Location: userpage.php");
}

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>

<body>
<form name="form1" id="Upload" action="<?php echo $editFormAction; ?>" enctype="multipart/form-data" method="POST"> 
     
        <h1> 
            Upload form 
        </h1> 
         
        <p> 
            <input type="hidden" name="MAX_FILE_SIZE" value="<?php echo $max_file_size ?>"> 
        </p> 
         
        <p> 
            <label for="file">File to upload:</label> 
            <input id="file" type="file" name="file"> 
        </p>
        <p>
          <label>
          <input name="sent" type="hidden" id="sent" value="1" />
          </label>
        </p>
        <p> 
            <label for="submit">Press to...</label> 
            <input id="submit" type="submit" name="submit" value="Upload me!"> 
        </p> 
     
        <input type="hidden" name="MM_insert" value="form1">
</form> 
</body>
</html>

garydt · March 24, 2007

sorry, i couldn't see what you have changed.

Lumio · March 24, 2007

man... why isn't it changing?

I just made

$fieldname = 'file';

to

$fieldname = $_FILES['file'];

garydt · March 24, 2007

we have partial success!

it uploads into the directory and puts the right url into the database but it isn't resizing the image.

Lumio · March 24, 2007

Ah! I see!

just replace

$filename = './uploads/'.$name['name'];

into

$filename = './uploads/'.$name;

(after resizeimage($name){)

Because we already call the function with the filename.

So... what's $newimage? It's undefined. I didn't put it into the code.

garydt · March 25, 2007

I changed that and it still isn't resizing.

Have I got this line right-

 if(imagejpeg($thumb, "thumbnails/".$name, 80)) {

is thumbnails a directory?

garydt · March 25, 2007

Ah-ha! Found the resized images in the thumbnails folder! Thank you very much for all your help and patience.

garydt · March 25, 2007

How do i store the url to the new resized image? I tried

 $smallimage = './thumbnails/'.$name;

but of course $name doesn't exist

is it meant to overwrite the orignal image?

Lumio · March 25, 2007

instead of $name use $_FILES['file']['name'] or your $fieldname['name']

and now... get up to learn php

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image resize problem

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