PHP - Upload Png With Transparent Background

Hi everyone,

I have a page that i use to upload images to my website, i got a bit fed up of uploading one at a time so i decided to add multiple file fields to the form to upload multiple images at the same time.

Im having a few problems, iv read up he http://www.php.net/manual/en/features.file-upload.multiple.php and it seems all i have to do is add [] to the form names to turn them into arrays. However when i come to upload the images, i keep getting the "$error[] = "Incorrect format!...." error from the code below. I cant seem to figure out what the problem is.

Could anybody please point me in the right direction?


<?php 
session_start();

$id = $_SESSION['id'];

$connect = mysql_connect("localhost","leemp5_admin","p7031521");
mysql_select_db("leemp5_database");

$query = mysql_query("SELECT * FROM users WHERE id='$id'");
$row = mysql_fetch_assoc($query);

$username = $row['username'];

$submit = $_POST['submit'];

$type = $_FILES['image']['type'];
$size = $_FILES['image']['size'];
$max_size = "1000"; 
$width = "100"; 
$height = "100";
 
$error = array();

function make_thumb($image_name,$filename,$new_width,$new_height) 
{

$ext=getExtension($image_name); 

if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext)) 

$source_image=imagecreatefromjpeg($image_name);   

if(!strcmp("png",$ext)) 

$source_image=imagecreatefrompng($image_name);

if(!strcmp("gif",$ext)) 

$source_image=imagecreatefromgif($image_name); 

$old_x=imageSX($source_image);

$old_y=imageSY($source_image);   

$ratio1=$old_x/$new_width; 

$ratio2=$old_y/$new_height; 

if($ratio1>$ratio2)

{ 

$thumb_width=$new_width; 

$thumb_height=$old_y/$ratio1; 

} 

else 

{ 

$thumb_height=$new_height;

$thumb_width=$old_x/$ratio2; 

} 
  

$destination_image=ImageCreateTrueColor($thumb_width,$thumb_height);   

imagecopyresampled($destination_image,$source_image,0,0,0,0,$thumb_width,$thumb_height,$old_x,$old_y);   

if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext))

{

imagejpeg($destination_image,$filename); 

}

if(!strcmp("png",$ext)) 

{

imagepng($destination_image,$filename); 

}

if(!strcmp("gif",$ext)) 

{

imagegif($destination_image,$filename); 

}

imagedestroy($destination_image); 

imagedestroy($source_image); 
}   


function getExtension($str)
{ 

$i = strrpos($str,"."); 

if (!$i) { return ""; } 

$l = strlen($str) - $i; 

$ext = substr($str,$i+1,$l); 

return $ext; 
}   

if($submit) 
{ 

$image=$_FILES['image']['name']; 

if ($image) 

{ 

$filename = stripslashes($_FILES['image']['name']);   

$extension = getExtension($filename); 

$extension = strtolower($extension); 

if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif"))

{ 

$error[] = "Incorrect format! Please make sure your image is a .jpg, .jpeg, .png or .gif file.";

} 

else

{ 

$size=getimagesize($_FILES['image']['tmp_name']); 

$sizekb=filesize($_FILES['image']['tmp_name']); 
  

if ($sizekb > $max_size*1024) 

{ 

$error[] = "Your image is too big! The maximum upload size is 1MB.";

}   

else

{

$image_name=time().'.'.$extension; 
 

$newname="uploads/" . $username . "/images/".$image_name; $copied = copy($_FILES['image']['tmp_name'], $newname); 

if (!$copied) 

{ 

$error[] = "There was an error uploading your image. Please try again!";

} 

else 

{ 

$thumb_name='uploads/' . $username . '/images/thumbs/thumb_'.$image_name; 
 

$thumb=make_thumb($newname,$thumb_name,$width,$height); 

}

}

}

}

else

{

$error[] = "Please select an image to upload!";

}

if(empty($error))

{

echo "Upload Successfully!<br />"; 

echo '<img src="'.$thumb_name.'">';

mysql_query("INSERT INTO images VALUES ('','$username','$image_name','','','','','uploads/$username/images/$image_name','uploads/$username/images/thumbs/thumb_$image_name','$type','$size')");

}

else

{
    

echo implode($error);

}
}
?>
<form method="post" enctype="multipart/form-data" action="upload_images.php">
<input type="file" name="image[]" /><br />
<input type="file" name="image[]" /><br />
<input type="file" name="image[]" /><br />
<input type="file" name="image[]" /><br />
<input type="file" name="image[]" /><br />
<input type="file" name="image[]" /><br />
<input type="submit" name="submit" value="Upload">
</form>


Thanks

I have code written for image uploading, but it doesn't allow multiple images on a single upload, and doesn't re-size.

Anyone willing to share a good upload script that will do the following?:
-Allow multiple image uploads (10+ per submission),
-Re-size images on upload, and
-Rename images.

Thanks
Brett

I am using the following code to give my image round corners, but i am using an image that just cuts the corner with a white shape. Is it possible to make it cut the corner with a transparent color?

function roundcorners($image, $topleft, $topright = null, $bottomright = null, $bottomleft = null) {
if($topright == null) $topright = $topleft;
if($bottomright == null) $bottomright = $topleft;
if($bottomleft == null) $bottomleft = $topleft;
if($topleft >= 2) {
$tl = imagecreatefrompng("corner.png");
imagecopyresampled($image, $tl, 0, 0, 0, 0, $topleft, $topleft, 485, 485);
}
if($topright >= 2) {
$tr = imagerotate(imagecreatefrompng("corner.png"), 270, 0);
imagecopyresampled($image, $tr, imagesx($image)-$topright, 0, 0, 0, $topright, $topright, 485, 485);
}
if($bottomright >= 2) {
$br = imagerotate(imagecreatefrompng("corner.png"), 180, 0);
imagecopyresampled($image, $br, imagesx($image)-$bottomright, imagesy($image)-$bottomright, 0, 0, $bottomright, $bottomright, 485, 485);
}
if($bottomleft >= 2) {
$bl = imagerotate(imagecreatefrompng("corner.png"), 90, 0);
imagecopyresampled($image, $bl, 0, imagesy($image)-$bottomleft, 0, 0, $bottomleft, $bottomleft, 485, 485);
}
}

files that upload during insert/submit form was gone , only files upload during the update remain , is the way query for update multiple files is wrong ?

$targetDir1= "folder/pda-semakan/ic/";
if(isset($_FILES['ic'])){
     $fileName1 = $_FILES['ic']['name'];
 $targetFilePath1 = $targetDir1 . $fileName1;
 //$main_tmp2 = $_FILES['ic']['tmp_name'];
$move2 =move_uploaded_file($_FILES["ic"]["tmp_name"], $targetFilePath1);
}

$targetDir2= "folder/pda-semakan/sijil_lahir/";
if(isset($_FILES['sijilkelahiran'])){
     $fileName2 = $_FILES['sijilkelahiran']['name'];
 $targetFilePath2 = $targetDir2 . $fileName2;
$move3 =move_uploaded_file($_FILES["sijilkelahiran"]["tmp_name"], $targetFilePath2);
}

$targetDir3= "folder/pda-semakan/sijil_spm/";
if(isset($_FILES['sijilspm'])){
     $fileName3 = $_FILES['sijilspm']['name'];
 $targetFilePath3 = $targetDir3 . $fileName3;
$move4 =move_uploaded_file($_FILES["sijilspm"]["tmp_name"], $targetFilePath3);
}



$query1=("UPDATE semakan_dokumen set student_id='$noMatrik', email= '$stdEmail', surat_tawaran='$fileName', ic='$fileName1',sijil_lahir='$fileName2',sijil_spm= '$fileName3' where email= '$stdEmail'");

 

I'm wondering if the GD library is capable of coloring ONLY the non-transparent areas in an image. I had this image white, black, and every other color under the moon, but could only get GD to color the entire canvas (width and height) of the image with an opacity over it. I'm merging many layers on top of each other so I can't afford to color the entire square and lower the opacity and do some weird multiply stuff.     That's the image above. Then I have some lineart, markings, eye color, etc. So I had all my possible colors white areas that I layer on top of eachother. I want to color the entire non-transparent areas with a color (dynamic).. so I can't just color it in Photoshop and then upload it or else I would literally have millions of possibilities for every single color and shade..   Thanks for any help. I was trying to go with ImageMagick if GD isn't capable, but I can't even get that downloaded in my Wamp. I'm using 64 bit Wamp so I have no idea if that does something or whatever. I can get it installed on my computer and run it via command line, but I can't get it to work and render images in my Wamp files... can't ever find a .dll that works.

I’m trying to work out how I can use php gd to take an image, in this case it’s a rectangle that has text in the middle and the rest is transparent, so it’s a png with just text in the centre.

 

I have another image which is a texture. Its also a rectangle of the same size. I have managed to merge the two together so the texture on top of the text image but it covers the entire image rather than just the text in the middle.

 

what I need it to do it apply the texture to the text in the image and ignore the surrounding transparent pixels.

 

 

Hi all,

I am currently making a website that has e-custom functions and a back end for the client.

I want them to be able to upload images - but they need to be transparent. I do not want to leave this in the hands of the client, so I am looking at ways of using the GD library to make the change

I got no issue with the png/gif type for upload/resize function since this type already transparent background but my major problems is how to deal with jpeg/jpg image type which is their background was not a transparent...so is it possible I can change/ convert to png/gif type upon successful of uploading image...so the new final image will be png/gif type with transparent background...is it doable...I am not even sure it is possible...?

Thanks for any help..

I have made this script to upload to an ftp server.
How do I get the script to try to restart the upload if it fails? (if if (ftp_put($conn_id, $remote_file, $file, FTP_ASCII)) returns false)

Code: [Select]
<?php
$file = 'file.wmv';
$remote_file = 'file.wmv';

// set up basic connection
$conn_id = ftp_connect('ftp.eu.filesonic.com');

$ftp_user_name='username';
$ftp_user_pass='password';

// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);

// upload a file
if (ftp_put($conn_id, $remote_file, $file, FTP_ASCII)) {
 echo "successfully uploaded $file\n";
} else {
 echo "There was a problem while uploading $file\n";
}

// close the connection
ftp_close($conn_id);
?>

Hey Im trying to upload a pdf file into a blob in a database. This script worked to insert images and I made a few minor changes so that it could do the same for pdf files. Only when i run the script in a browser it says error unknown file format. I dont understand this because I do list pdf as a valid file format. The txt and the doc possible file uploads are just there to take up spots where jpeg and gif were in the picture script i have no intention of actually uploading those. The file i tested was yes a pdf so that cant be the issue. Heres the script.
Code: [Select]
<?php
$db_host = 'localhost'; // don't forget to change 
$db_user = 'root'; 
$db_pwd = 'dbpassword';
$database = 'mydbname';
$table = 'lit_gallery';
// use the same name as SQL table
$password = '123';
// simple upload restriction,
// to disallow uploading to everyone
if (!mysql_connect($db_host, $db_user, $db_pwd))    
die("Can't connect to database");
if (!mysql_select_db($database))    
die("Can't select database");
// This function makes usage of
// $_GET, $_POST, etc... variables
// completly safe in SQL queries
function sql_safe($s){    
if (get_magic_quotes_gpc())        $s = stripslashes($s);    
return mysql_real_escape_string($s);}
// If user pressed submit in one of the forms
if ($_SERVER['REQUEST_METHOD'] == 'POST'){    
// cleaning title field    
$title = trim(sql_safe($_POST['title']));
if ($title == '') 
// if title is not set        
$title = '(empty title)';
// use (empty title) string    
if ($_POST['password'] != $password)// cheking passwors        
$msg = 'Error: wrong upload password';
else    {        
if (isset($_FILES['book']))        {            @list(, , $ftype, ) = getimagesize($_FILES['book']['tmp_name']);            
// Get file type.
// We use @ to omit errors
if ($ftype == 3) 
// cheking image type
$ext="pdf";   
// to use it later in HTTP header
elseif ($ftype == 2)                $ext="txt";            
elseif ($imtype == 1)                $ext="doc";            
else                $msg = 'Error: unknown file format';            
if (!isset($msg)) 
// If there was no error
{                $data = file_get_contents($_FILES['book']['tmp_name']);
$data = mysql_real_escape_string($data);
// Preparing data to be used in MySQL query                
mysql_query("INSERT INTO {$table}                                SET ext='$ext', title='$title',                                    data='$data'");
$msg = 'Success: pdf uploaded';
}
}
elseif (isset($_GET['title']))      // isset(..title) needed
$msg = 'Error: file not loaded';
// to make sure we've using
// upload form, not form
// for deletion
if (isset($_POST['del'])) 
// If used selected some photo to delete        
{                         
// in 'uploaded images form'
$id = intval($_POST['del']);
mysql_query("DELETE FROM {$table} WHERE id=$id");
$msg = 'Book deleted';
}    
}
}
elseif (isset($_GET['show'])){    $id = intval($_GET['show']);
$result = mysql_query("SELECT ext, UNIX_TIMESTAMP(book_time), data                             FROM {$table}                            WHERE id=$id LIMIT 1");
if (mysql_num_rows($result) == 0)        die('no image');
    list($ext, $book_time, $data) = mysql_fetch_row($result);    $send_304 = false;    if (php_sapi_name() == 'apache') {
// if our web server is apache
// we get check HTTP        
// If-Modified-Since header
// and do not send image        
// if there is a cached version
$ar = apache_request_headers();
if (isset($ar['If-Modified-Since']) && 
// If-Modified-Since should exists            
($ar['If-Modified-Since'] != '') && 
// not empty            
(strtotime($ar['If-Modified-Since']) >= $book_time)) 
// and grater than            
$send_304 = true;                                     
// image_time    
}    
if ($send_304)    {        
// Sending 304 response to browser        
// "Browser, your cached version of image is OK        
// we're not sending anything new to you"        
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $ts).' GMT', true, 304);        
exit(); 
// bye-bye    
}    
// outputing Last-Modified header    
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $book_time).' GMT',            true, 200);    // Set expiration time +1 year    
// We do not have any photo re-uploading  
// so, browser may cache this photo for quite a long time    
header('Expires: '.gmdate('D, d M Y H:i:s',  $book_time + 86400*365).' GMT',            true, 200);    
// outputing HTTP headers    
header('Content-Length: '.strlen($data));    
header("Content-type: application/{$ext}");    
// outputing book    
echo $data;    
exit();
}
?>
<head>
<title>MySQL Blob Image Gallery Example</title>
<link rel="stylesheet" type="text/css" href="test.css"/>
</head>
<html>
<body>
<?php
if (isset($msg)) 
// this is special section for
// outputing message
{
?>
    <p style="font-weight: bold;"><?=$msg?><br><a href="<?=$PHP_SELF?>">reload page</a><!-- I've added reloading link, because     refreshing POST queries is not good idea --></p>
    <?php
    }
?>
    <h1>Blob image gallery</h1>
    <h2>Uploaded images:</h2>
    <form action="<?=$PHP_SELF?>" method="post">
    <!-- This form is used for image deletion -->
    <?php
    $result = mysql_query("SELECT id, book_time, title FROM {$table} ORDER BY id DESC");
if (mysql_num_rows($result) == 0) 
// table is empty    
echo '<ul><li>No images loaded</li></ul>';
else{    
echo '<ul>';    
while(list($id, $book_time, $title) = mysql_fetch_row($result))    {        
// outputing list        
echo "<li><input type='radio' name='del' value='{$id}'>";        
echo "<a href='{$PHP_SELF}?show={$id}'>{$title}</a> &ndash; ";        
echo "<small>{$book_time}</small></li>";    
}    
echo '</ul>';    
echo '<label for="password">Password:</label><br>';    
echo '<input type="password" name="password" id="password"><br><br>';    
echo '<input type="submit" value="Delete selected">';
}
?>
    <html>
    <body>
    </form><h2>Upload new image:</h2><form action="<?=$PHP_SELF?>" method="POST" enctype="multipart/form-data">
    <label for="title">Title:</label><br><input type="text" name="title" id="title" size="64"><br>
    <br>
    <label for="book">Book:</label><br><input type="file" name="book" id="book"><br>
    <br>
    <label for="password">Password:</label><br><input type="password" name="password" id="password"><br>
    <br><input type="submit" value="upload"></form>
    </body>
    </html>

Can someone Help me 
I made a code for uploading files to database.. but how can i retrieve it?
Is it possible to open the pdf file in browser?
Im using XAMPP MySql.. SOMEONE HELP ME PLS.

Hi there

We are hosting a web server that requires large files (100MB+) to be uploaded to it.  We are using PHP upload scripts, and it is working, but we are getting complaints that the uploads are unreliable (some files fail to upload, with no error messages).

I have been reading on various forums that FTP should rather be used for larger files, rather than HTTP.  But from what I can see, there are some limitations, and I was wondering if there are any ways around these:
-   Using cURL would mean that the files would first be uploaded to a temp folder on the web server via HTTP, and then only sent via FTP.  This defeats the purpose, because if it is already on the Web Server (which is hosted locally), then I might just as well move the file.
-   Using the built in FTP functionality of PHP, it appears that ones needs to know the full path of the source file.  The users who are uploading files are accessing the Web server via a form in a browser, which will not give the PHP script the full path of the file to be uploaded.

All we want is to have a reliable means for an end-user to access a site with a browser, fill in a form, choose a file to upload, and submit it.  Additional functionality, like a progress bar, the ability to select multiple files and a resume option for failed uploads, would all be very nice.  But the main concern is that the transfers be more reliable.

Thanks for any advice.

Mills

Hello...

I have some simple code but no ideas for upload another image??
PHP stores image name in database but there is no second picture uploaded in the images/ folder.

Pls help.
Thanks

if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/png")
|| ($_FILES["file"]["type"] == "image/pjpeg"))
&& ($_FILES["file"]["size"] < 2000000))
  {
  if ($_FILES["file"]["error"] > 0)
    {
    echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
    }
  else
    {
    echo "<strong>Slika:</strong> " . $_FILES["file"]["name"] . "<br />";
    echo "<strong>Format slike:</strong> " . $_FILES["file"]["type"] . "<br />";
    echo "<strong>Velicina:</strong> " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
    echo "<strong>Temp file:</strong> " . $_FILES["file"]["tmp_name"] . "<br />";



//  here is mistake???

      move_uploaded_file($_FILES["file"]["tmp_name"],
      "images/" . $_FILES["file"]["name"]);

//
      


$sql="INSERT INTO test (name, something, slika, slika2)
VALUES ('".$_POST['name']."', '".$_POST['something']."', '".$_FILES['file']['name']."', '".$_FILES['slika1']['name']."')";

if (mysql_query($sql))

{

    echo "Sucess";

} else {

    echo "Error" . mysql_error();

}
}
}
  else
  {
  echo "Invalid file";
  }
?>  

I want to upload a file automatically at any time from my home PC to a website I am developing. I can upload OK using a form with 'enctype="multipart/form-data"' but this requires manual operation to select a file and to submit the upload request. Is there a way the upload process can be made to happen with no operator present?

I also want to download from the website to my PC automatically ie. download a file (as it becomes available) from the website to a specified location on my PC, without operator intervention. Help. Thanks.

Hi all,

I've been struggling to develop a robust image upload validation script. I have an area on my site where users can upload a profile picture into a directory so, to keep it clean and safe here is what I want:

1) Script must work in IE and Firefox
2) Script must only allow image files to be uploaded
3) Images shouldn't be unreasonable in size say 4mb max.

Currently i'm using this

Code: [Select]
if ((($_FILES["file"]["type"] == "image/gif") || ($_FILES["file"]["type"] == "image/jpeg") || ($_FILES["file"]["type"] == "image/pjpeg")) && ($_FILES["file"]["size"] < 40000))
  {
  if ($_FILES["file"]["error"] > 0)
    {
    echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
    }
  else
    {
    if (file_exists("profiles/images/$filegif"))
      {
unlink("profiles/images/$filegif");
      } 
    if (file_exists("profiles/images/$filejpeg"))
      {
unlink("profiles/images/$filejpeg");
      }
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "profiles/images/" .$name);
     }

//.... send me email to let me view picture ....//

  }
  else
  {
  echo "Invalid file - Only Gif or Jpeg files may be uploaded.";
 
///... send me error message to let me know user having problems ...///

  }
}


Some users upload fine (is this browser compatability?), mostly I get alot or error messages though and have to upload manually.

Thanks in advance!

is there a way to upload video i try uploading video but wont let me

Code: [Select]
<?php
$name = $_FILES['upload']['name'];
$ext = strtolower(substr($name,strpos($name,'.') +1));
$size = $_FILES['upload']['size'];
$maxsize = 1073741824;
$tmp = $_FILES['upload']['tmp_name'];

$move = "uploads/";

if(isset($name)){
if(!empty($name)){
if($size <= $maxsize){
if($ext == 'flv' || $ext == 'fla' || $ext == 'mp4'){
if(move_uploaded_file($tmp,$move.$name)){
echo "Uploaded";
}else
echo "Error has happen try again later";
}else
echo "Image must be a jpg, jpeg, or png";
}else
echo "You must select a smaller image size";
}else
echo "You must select a image";
}
?>
<form action="video.php" method="post" enctype="multipart/form-data" >
<input type="file" name="upload" /><br>
<input type="submit" name="submitbtn" />
</form>