This should be fairly simple (given the tools on hand) but there's something I'm completely overlooking..
I'm trying to convert a PNG as a base64 URL to a GIF87a or a GIF89a GIF using PHP.
I've got a small piece of code that goes like this:
$img = "data:image/png;base64,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";
$img = str_replace('data:image/png;base64,', '', $img);
$img = str_replace(' ', '+', $img);
$data = base64_decode($img);
$dataTwo = imagegif($data);
$file = 'img/' . uniqid() . '.gif';
$success = file_put_contents($file, $dataTwo);
print $success ? $file : 'Unable to save the file.';
But whenever I run it, I get an error that says Warning: imagegif() expects parameter 1 to be resource, string given and of course my if fails and spits out 'Unable to save the file'.
The data URL is valid. I've checked.
I think I need to create $data as an image first before $imagegif will process it but I don't know how to do that.. I'm still shaky on handling objects.. I tried to search the PHP wiki but I became even more confused and now I have a headache..
I have two questions that follow:
what did I do wrong / please tell me what it wants me to give it and how..
once I have it actually working, when PHP converts the file, will it overwrite the header to GIF87a or GIF89a? I require one of these to specifically be in the header of the GIF file.
Thank you in advance for any advice you can provide.
The function you want to use is indeed imagecreatefromstring.
It will recognize the image type by parsing the data.
You can then use the resource returned as parameter to the imagegif function.
As previously pointed out, you need imagecreatefromstring from the GD library. The conversion is then quite straight forward:-
$img = imagecreatefromstring(base64_decode("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"));
imagegif($img, 'test.gif');
Or to match your code:-
$input = "data:image/png;base64,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";
list(, $imgData) = explode(',', $input);
$img = imagecreatefromstring(base64_decode($imgData));
imagegif($img, 'test.gif');
And to answer your second point, opening test.gif in notepad++ showed GIF87a in the header.
Related
I am having an image upload script, which works fine so far. It runs with jQuery fileupload. The PHP script generates a new name for the uploaded image and gives it out through exit($imgname);. Strangely I always get a response with many whitespaces like you can see in the picture.
To the screenshot:***
My whole website uses jQuery and I thought about using $.trim() to just trim the result to plain text, but I don't know if this is a great idea since I don't think that this works for any common browser.
Additional:
The most strange thing about this is, that it worked in the past just fine without any whitespaces. Today I uploaded something and suddenly it does something like this...
PHP:
$upload = $image->upload();
$imgname = $image->getName();
$imgmime = $image->getMime();
$fullimgname = $imgname . "." . $imgmime;
if($upload){
// POST TO DATABASE ETC.
exit($fullimgname);
}
The white paces may come from somewhere else in the PHP file...
Look for spaces that would be outside the <?php and ?> brackets.
Like this, for example:
// <-- 4 tabs on this line
<?php
$upload = $image->upload();
$imgname = $image->getName();
$imgmime = $image->getMime();
$fullimgname = $imgname . "." . $imgmime;
if($upload){
// POST TO DATABASE ETC.
exit($fullimgname);
}
Try to use regex, because it might consider full unicode charset, etc:
$imgname = preg_replace('/^\s+/u', "", $imgname);
Although it looks likeltrim() should be enough.
Context
I have access to database. That database contains image data something like 0xFFD8FFE....................09090
Problem
I need those cryptic(hex) data to convert into visual image. I am not being able to find any way.
I have tried
$image = base64_decode(file_get_contents('img.txt'));
$db_img = imagecreatefromstring($image);
Header("Content-type: image/jpeg");
imagepng($db_img);
Here img.txt is file name containing the hex data.
It Doesn't work. How can I achieve this?
To turn a string like 0xFFD8FFE...09090 into actual binary data, you need to first get rid of the "0x" prefix, which is not part of the actual data, and then do a simply hex → bin conversion:
$data = '0xFFD8FFE...09090'; // maybe from file_get_contents
$binary = hex2bin(substr($data, 2));
If you don't know what type of image it is then, the most efficient method to find out is probably the use of finfo:
$finfo = new finfo(FILEINFO_MIME);
$type = $finfo->buffer($binary);
header('Content-Type: ' . $type);
echo $binary;
There's no need to use gd to reencode the image if $binary already is an image. You may want to inspect $type here a bit to verify that it's really the kind of file you expect before blindly outputting it.
I'm trying to create an image in my server's uploads directory from base64 code sent from the client-side. Below's the code for same :
<?php
$dataURI = $_REQUEST['dataURI'];
$dataURI = str_replace('data:image/png;base64,', '', $dataURI);
$dataURI = str_replace(' ', '+', $dataURI);
$data = base64_decode($dataURI);
// $filename = UPLOAD_DIR . uniqid() . '.png';
$filename = UPLOAD_DIR . 'saved-image' . '.png';
$status = file_put_contents($filename, $data);
?>
the image is successfully created, but for some reason the image is cropped to half(horizontally). Could anyone tell me , what's wrong with this ?
Below is the original and saved/created image :
Original Image
Created Image
You are getting your data through an HTTP parameter. Those acutally are limited in size (e.g. the default for Apache is . This limit varies between webservers and usually can pe set in your server config.
Also note that PHP has a post_max_size in php.ini which by default is 2MB
You've probably got some encoding problems:
$dataURI = str_replace(' ', '+', $dataURI);
Looks like an attempt here to undo a replacement of + with which happened somewhere -most likely it was urldecoded. The / forward slash character is also part of the base64 symbol set, and so I suspect whatever messed up your + symbols also messed those up too.
What I would do is carefully trace the origin of this data and observe the transformations that are made.
Confirm you are writing to a text file and NOT to a database. I recently was switching back and forth attempting to troubleshoot this very issue. It turned out that my database column type, which was set to text was not large enough to store the image. My images were coming back looking just like yours. I switched to longtext and that fixed my issue.
I want to create an image in php having the data encoded in base64
Use the code: file_put_contents('export/MyFile.png', base64_decode($img));
I read on the browser, but 7483 should be a larger number.
if I open the image was created only half (the other half is transparent)
if the variable $img contains a short string, it works.
if it contains a string too long the image will be created only partially.
why?
PS: if I use
$img = base64_decode($img);
$fp = fopen("export/MyFile.png", "w");
fwrite($fp, $img);
fclose($fp);
I have the exact same problems
thanks
file_put_contents('export/MyFile.png', base64_decode($img));
Should be:
file_put_contents('export/MyFile.png', base64_encode($img));
If you want to encode the image, you can't use the decode function.
What's the proper way in PHP to create an image file (PNG), when I have the base64 encoding?
I've been playing around with:
file_put_contents('/tmp/'. $_REQUEST['id'].'.png', $_REQUEST['data']);
do I need to decode? should I be using the gd library?
You need to use base64_decode(). AND. Sometimes it is not sufficient. Here is all code that you need:
$img = $_POST['data'];
$img = str_replace('data:image/png;base64,', '', $img);
$img = str_replace(' ', '+', $img);
$fileData = base64_decode($img);
//saving
$fileName = 'photo.png';
file_put_contents($fileName, $fileData);
P.S. I used this code to get PNG image from html canvas.
My best guess is that you simply need to call base64_decode() on $_REQUEST['data'] before writing it to the file. That should be plenty enough :).
I would think you'd want to decode with base64_decode() unless you are only using it like they are here HERE.
The thing I am sure of is that you will want to sanitize $_REQUEST['id'] before using it.