Resizing an uploaded image

[ali_p]

Hi,

I am using a php image upload script which does the job really well, but i would like to incorporate a bit of script that resizes the uploaded image to my specified height width.

I've tried a few things but the image always remains the same size, unresized. Below is the script that i am using its pretty straight forward, but i'm at a lost at how to modify if for the resizing. Does anyone have any ideas or knows of a all in one script that will do both.?

Thanks in advance.

$uploaddir = $image_upload;//this being my route to the upload folder
//trying out a new upload script with checks
if ($HTTP_POST_VARS['submit']) {
  //print_r($HTTP_POST_FILES);
  if (!is_uploaded_file($HTTP_POST_FILES['filename']['tmp_name'])) {
    $error = "You did not upload a file!";
    unlink($HTTP_POST_FILES['filename']['tmp_name']);
    // assign error message, remove uploaded file, redisplay form.
  } else {
    //a file was uploaded
    $maxfilesize=5000000;

if ($HTTP_POST_FILES['filename']['size'] > $maxfilesize) {
  $error = "file is too large";
  unlink($HTTP_POST_FILES['filename']['tmp_name']);
  // assign error message, remove uploaded file, redisplay form.
} else {
  if ($HTTP_POST_FILES['filename']['type'] != "image/jpeg" AND 
  	$HTTP_POST_FILES['filename']['type'] != "image/gif" AND 
  	$HTTP_POST_FILES['filename']['type'] != "image/pjpeg") { 
    $error = "This file type is not allowed";
    unlink($HTTP_POST_FILES['filename']['tmp_name']);
    // assign error message, remove uploaded file, redisplay form.
  } else {
   //File has passed all validation, copy it to the final destination and remove the temporary file:
   copy($HTTP_POST_FILES['filename']['tmp_name'],"$uploaddir".$HTTP_POST_FILES['filename']['name']);
   unlink($HTTP_POST_FILES['filename']['tmp_name']);


$file = $file_array['tmp_name'];
$file_name =$_FILES['filename']['name'];




//this bit to put the filename into the database
$conn = mysql_connect("$glob_host", "$glob_user", "$glob_pass")
	or die(mysql_error());
mysql_select_db($db_name,$conn) or die(mysql_error());

//create and issue the query
$sql = "INSERT INTO pictures
		VALUES('','$_POST[acc_code]', '$_POST[alt_title]', '$file_name')";
$result = mysql_query($sql,$conn)or die(mysql_error());

   exit;
 }
} 
  }
}

[NogDog]

If the GD library is installed/enabled, you can use the imagecopyresampled function to resize your images. (See Example 2 in the preceding link for an example of what it sounds like you want to do.)

[ali_p]

Thanks for the link. I've added the resize elements to my own code and i'm having trouble getting it to resize still.

Below is my new script. Basically its giving me a warning about everthing that i've added.

$uploaddir = $image_upload;
//trying out a new upload script with checks
if ($HTTP_POST_VARS['submit']) {
  //print_r($HTTP_POST_FILES);
  if (!is_uploaded_file($HTTP_POST_FILES['filename']['tmp_name'])) {
    $error = "You did not upload a file!";
    unlink($HTTP_POST_FILES['filename']['tmp_name']);
    // assign error message, remove uploaded file, redisplay form.
  } else {
    //a file was uploaded
    $maxfilesize=5000000;

if ($HTTP_POST_FILES['filename']['size'] > $maxfilesize) {
  $error = "file is too large";
  unlink($HTTP_POST_FILES['filename']['tmp_name']);
  // assign error message, remove uploaded file, redisplay form.
} else {
  if ($HTTP_POST_FILES['filename']['type'] != "image/jpeg" AND 
  	$HTTP_POST_FILES['filename']['type'] != "image/gif" AND 
  	$HTTP_POST_FILES['filename']['type'] != "image/pjpeg") { 
    $error = "This file type is not allowed";
    unlink($HTTP_POST_FILES['filename']['tmp_name']);
    // assign error message, remove uploaded file, redisplay form.
  } else {
   //File has passed all validation, copy it to the final destination and remove the temporary file:


// Set a maximum height and width
$width = 269;
$height = 180;

// Content type
header('Content-type: image/jpeg');

// Get new dimensions
list($width_orig, $height_orig) = getimagesize($HTTP_POST_FILES['filename']['name']);

$ratio_orig = $width_orig/$height_orig;

if ($width/$height > $ratio_orig) {
   $width = $height*$ratio_orig;
} else {
   $height = $width/$ratio_orig;
}

// Resample
$image_p = imagecreatetruecolor($width, $height);
$image = imagecreatefromjpeg($HTTP_POST_FILES['filename']['name']);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);
//

   copy($image,"$uploaddir".$image);
   unlink($image);


$file = $file_array['tmp_name'];
$file_name =$image;





$conn = mysql_connect("$glob_host", "$glob_user", "$glob_pass")
	or die(mysql_error());
mysql_select_db($db_name,$conn) or die(mysql_error());

//create and issue the query
$sql = "INSERT INTO pictures
		VALUES('','$_POST[acc_code]', '$_POST[alt_title]', '$file_name')";
$result = mysql_query($sql,$conn)or die(mysql_error());

   exit;
 }
} 
  }
}

Here are the warnings that i get

Warning: getimagesize(hardhat.jpg): failed to open stream: No such file or directory in senior/site_content/newadd_images2.php on line 43

Warning: Division by zero in senior/site_content/newadd_images2.php on line 45

Warning: imagecreatetruecolor(): Invalid image dimensions in senior/site_content/newadd_images2.php on line 54

Warning: imagecreatefromjpeg(hardhat.jpg): failed to open stream: No such file or directory in senior/site_content/newadd_images2.php on line 55

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in senior/site_content/newadd_images2.php on line 56

Warning: unlink(): No such file or directory in senior/site_content/newadd_images2.php on line 60

[bumbar]

this is index.php file:

<form action="action_upload.php" method="post" enctype="multipart/form-data">
<input name="ufile[]" type="file" size="50" />
<input type="submit" name="Submit" value="Upload" />
</form>

this is action_upload.php:

$path1 = $HTTP_POST_FILES['ufile']['name'][0];
$copy1 = copy($HTTP_POST_FILES['ufile']['tmp_name'][0], $path1);

function thumbimage1 ($path1) {

$ext = explode(".",$path1);
$ext = end($ext);
$ext = strtolower($ext);

// Content type
if ($ext == "jpg") { header ("Content-type: image/jpg"); }
else if ($ext == "gif") { header ("Content-type: image/gif"); }
else if ($ext == "png") { header ("Content-type: image/png"); }

$width_normal = 300;
$height_normal = 300;

// Get new sizes
list($width_orig, $height_orig) = getimagesize($path1);

$ratio_orig = $width_orig/$height_orig;

if ($width_normal/$height_normal > $ratio_orig) {
$width_normal = $height_normal*$ratio_orig;
} else {
$height_normal = $width_normal/$ratio_orig;
}

$normal = imagecreatetruecolor($width_normal, $height_normal);

if ($ext == "jpg") { $source = imagecreatefromjpeg($path1); }
else if ($ext == "gif") { $source = imagecreatefromgif ($path1); }
else if ($ext == "png") { $source = imagecreatefrompng ($path1); }

imagecopyresampled($normal, $source, 0, 0, 0, 0, $width_normal, $height_normal, $width_orig, $height_orig);

$path1_normal = "images/". $path1;

if ($ext == "jpg") { imagejpeg($normal, $path1_normal, 100); }
else if ($ext == "gif") { imagegif ($normal, $path1_normal, 100); }
else if ($ext == "png") { imagepng ($normal, $path1_normal, 100); }

imagedestroy($path1_normal);
}

thumbimage1 ($path1);

unlink ($path1);

You must created "/images" directory.

[JonathanReinink]

Hello, I just recommended this tool in another thread. It might be worth checking out if you’re interesting in using someone else's script:

http://php.amnuts.com/index.php

Looks like you would need the Drop Shadowed Thumbnail Creator.

Here is also another script that I have used, which is simple, but should start you off in the right direction:

http://blazonry.com/scripting/upload-size.phps

[ali_p]

http://blazonry.com/scripting/upload-size.phps

I used this script but i find that it the file size when carried to the server is 0. It looks like its working but no actual file content is being uploaded just the name.

Does any one know why this is.

Thanks