How to get file information before saving it - php
I have file contents which I am receiving from my form in string form (base64), and now before using file_put_contents() function to save the file, I wanna know the information related to it, like it's size and mimetypes and so on.
So the question is how to retrieve a file's information just by it's data(base 64 string)
For ex, let's say I have this string:-
Object {files: "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAvwA…Fb+kScAm4BFwC6yGB/w9uNEwUj3EmdQAAAABJRU5ErkJggg==", text: "hi"}files: "data:image/png;base64,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…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"text: "hi"__proto__: Object
54:783
$encoded_data = 'iVBORw0KGgoAAAANSUhEUgAAAvwA…Fb+kScAm4BFwC6yGB/w9uNEwUj3EmdQAAAABJRU ....';
$size = strlen(base64_decode($encoded_data));
remember base64 encoding increases the original data in size by about 33%
Now we can write a function -
function getFileSize($base64string){
$bytes = strlen(base64_decode($base64string));
$roughsize = (((int)$bytes) / 1024.0)* 0.67;
return round($roughsize,2);
}
this function will return filesize in Kb.
Now to know the Mime Type you can use Fileinfo
$imgdata = base64_decode($encoded_data);
$f = finfo_open();
$mime_type = finfo_buffer($f, $imgdata, FILEINFO_MIME_TYPE);
Related
Set an extension and make full file from base64 encode to able to use laravel file method in php
I had base64 encoded data.
Look my code, please.
First of all, see my code.
$data = "data:image/png;base64,iVBORw0KGgoAAAA..........";
$image_array_1 = explode(";", $data);
$image_array_2 = explode(",", $image_array_1[1]);
$data = base64_decode($image_array_2[1]);
$imageName = uniqid().time().".png";
I want to set an extension .png to complete my file so that I can count this file extension by laravel method $image->getClientOriginalExtension() and others laravel file methods.
sorry for miss spell of language.
Hope I make you understand.
This works, although I cannot say if it's the best way to go about it. It's a full working example with a 1x1 black pixel png image. This assumes you already removed the data:image/png;base64, portion from the image data.
$data = base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR
42mNk+A8AAQUBAScY42YAAAAASUVORK5CYII=');
// Create a temp file and write the decoded image.
$temp = tmpfile();
fwrite($temp, $data);
// Get the path of the temp file.
$tempPath = stream_get_meta_data($temp)['uri'];
// Initialize the UploadedFile.
$imageName = uniqid().time().".png";
$file = new \Illuminate\Http\UploadedFile($tempPath, $imageName, null, null, true);
// Test if the UploadedFile works normally.
echo $file->getClientOriginalExtension(); // Shows 'png'
$file->storeAs('images', 'test.png'); // Creates image in '\storage\app\images'.
// Delete the temp file.
fclose($temp);
Imagecreatefromwebp(): WebP decode: fail to decode input data
I am trying to convert a webp file to JPEG using imagecreatefromwebp() but unfortunately, it throws me a warning: Warning: imagecreatefromwebp(): WebP decode: fail to decode input data. Here's my code $filename = dirname(__FILE__)."\\".$keyword."1.webp"; // $keyword = 'xyz'; $im = imagecreatefromwebp($filename); // Convert it to a jpeg file with 100% quality imagejpeg($im, './example.jpeg', 100); imagedestroy($im); Please help.
i am using this code, it works fine for me. Here $data contains the base64encoded data $im = imagecreatefromwebp($data); $imageResult = imagejpeg($im, $destinationPath . $fileName, 100); imagedestroy($im); The imagecreatefromwebp() function accepts either a valid file or URL. You can also pass the your binary data in that function. You can check the function definition and example here http://php.net/manual/en/function.imagecreatefromwebp.php
decode base64 to file without MIME [duplicate]
Is it possible to find out the type of an image encoded as a base64 String in PHP? I have no method of accessing the original image file, just the encoded string. From what I've seen, imagecreatefromstring() can create an image resource from a string representation (after it's been decoded from base64), but it automatically detects the image type and the image resource itself is a special PHP representation. In case I want to save the image as a file again, I would have no idea if the type I am saving it as corresponds to the original type from which the String representation was created.
FileInfo can do that for you: $encoded_string = "...."; $imgdata = base64_decode($encoded_string); $f = finfo_open(); $mime_type = finfo_buffer($f, $imgdata, FILEINFO_MIME_TYPE);
If you dont want to use these functions because of their dependencies you can use the first bytes of the data:
function getBytesFromHexString($hexdata)
{
for($count = 0; $count < strlen($hexdata); $count+=2)
$bytes[] = chr(hexdec(substr($hexdata, $count, 2)));
return implode($bytes);
}
function getImageMimeType($imagedata)
{
$imagemimetypes = array(
"jpeg" => "FFD8",
"png" => "89504E470D0A1A0A",
"gif" => "474946",
"bmp" => "424D",
"tiff" => "4949",
"tiff" => "4D4D"
);
foreach ($imagemimetypes as $mime => $hexbytes)
{
$bytes = getBytesFromHexString($hexbytes);
if (substr($imagedata, 0, strlen($bytes)) == $bytes)
return $mime;
}
return NULL;
}
$encoded_string = "....";
$imgdata = base64_decode($encoded_string);
$mimetype = getImageMimeType($imgdata);
references :- check here the list of file signatures
The solution given by #Marc B is the best one for me (if our php version is > 5.3.0 otherwise we can use the solution given by #Aaron Murgatroyd). I would like to give a little addition to this solution. To get the image type you can do it like this : $split = explode( '/', $mime_type ); $type = $split[1]; In fact, (if you don't know it) the mime type for images is : image/type and type can be png or gif or jpeg or ... Hope that can help someone and thanks to #Marc B for his solution. For an exhaustive list of mime type you can look here : http://www.sitepoint.com/web-foundations/mime-types-complete-list/
The way shown by #Marc B is the nicest. Should FInfo not be available, the only other way I know is to store the data into a file, and run a getimagesize() on it.
Code below will get the image type from its mime type.
<?php
$base64 = "data:image/png;base64,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";
$image_info = getimagesize($base64);
$extension = (isset($image_info["mime"]) ? explode('/', $image_info["mime"] )[1]: "");
echo $extension;
?>
If you know a minimal amount about the file format structure, you could theoretically look at the top bytes of the file until you could work out what type of file it is. For example, a GIF image always starts with the following bytes GIF89a. If you can find that string at the begining of the file, you can be reasonably sure that it is a GIF image and absolutely certain it isn't any other image format. (it could still be a text file though, that just happens to start with 'GIF89a'; you'd have to parse more of the file to be absolutely certain) Likewise, PNG files have the string PNG fairly near the start (it's not quite at the very begining; again, you'd need to research the file format specifics to help you determine how much you'd need to know to be certain). JPEGs also contain recognisable strings in their headers, although these are more varied and complex. You might want to look out for the string Exif. Getting the file format definitions would definitely give you more accuracy, but depending on how accurate you need to be, you might learn enough about the files formats just by opening some image files in a binary editor to see how they're structured. These resources may help you: http://www.w3.org/Graphics/JPEG/ http://www.w3.org/Graphics/PNG/
Follow PHP.NET Fileinfo :-
$finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
foreach (glob("*") as $filename) {
echo finfo_file($finfo, $filename) . "\n";
}
finfo_close($finfo);
You can use magic numbers to detect a MIME type (check here the list of file signatures). However, file signatures are not 100% reliable and you can easily encounter false positives. Of course, there are tasks when a such solution is more than enough.
So if you have a Base64 string and want to identify its MIME type using file signatures you don't need to decode the Base64. A much faster way is to store the file signatures as Base64 and just check if input starts with one of them. A simple example:
<?php
function detectMimeType(string $base64)
{
$signaturesForBase64 = [
'JVBERi0' => "application/pdf",
'R0lGODdh' => "image/gif",
'R0lGODlh' => "image/gif",
'iVBORw0KGgo' => "image/png",
'/9j/' => "image/jpeg"
];
foreach($signaturesForBase64 as $sign => $mimeType)
{
if(strpos($base64, $sign) === 0) {
return $mimeType;
}
}
return false;
}
var_dump(detectMimeType('R0lGODdhAQABAPAAAP8AAAAAACwAAAAAAQABAAACAkQBADs=')); // image/gif
var_dump(detectMimeType('iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVR42mP4z8AAAAMBAQD3A0FDAAAAAElFTkSuQmCC')); // image/png
var_dump(detectMimeType('JVBERi0xLjUKJYCBgoMKMSAwIG9iago8PC9GaWx0ZXIvRmxhdGVEZWNvZGUvRmlyc3QgMTQxL04gMjAvTGVuZ3')); // application/pdf
var_dump(detectMimeType('/9j/4AAQSkZJRgABAQAAZABkAAD/2wCEABQQEBkSGScXFycyJh8mMi4mJiYmLj41NTU1NT5EQUFBQUFBRERERERERERE')); // image/jpeg
I got this solution from this Js Que-Answer
Additinally : this one is also works properly
restore base64_encode image to a file system from database
I'm saving some of my image in to mysql database using base64_encode.
now I want to restore them back to file system.
How can I do that?
Edit...!
Ok, I did not explain enough.
I use this code to encode my image and save them in to a blob table:
function base64_encode_image ($imagefile) {
$imgtype = array('jpg', 'gif', 'png');
$filename = file_exists($imagefile) ? htmlentities($imagefile) : die('Image file name does not exist');
$filetype = pathinfo($filename, PATHINFO_EXTENSION);
if (in_array($filetype, $imgtype)){
$imgbinary = fread(fopen($filename, "r"), filesize($filename));
} else {
die ('Invalid image type, jpg, gif, and png is only allowed');
}
return 'data:image/' . $filetype . ';base64,' . base64_encode($imgbinary);
}
and use this code to show my image in browser:
if (!isset($_GET['id']) && !ctype_digit($_GET['id'])){
die('Error');
} else {
require_once( addslashes(dirname(dirname(__FILE__)) . '/config.php') );
require_once( addslashes(dirname(__FILE__) . '/Functions.php'));
$row = mysql_fetch_array(mysql_query ("SELECT `id`,`cover_small` FROM `om_manga` WHERE `Active` = '1' AND `id` = '".sql_quote($_GET['id'])."'"));
if (isset($row['id'])){
header("Content-type: image/jpeg");
readfile($row['cover_small']);
} else {
die('Error');
}
}
Now i want them back to a jpg file.
The size of all those image are less then 3kb.
Use PHP's base64_decode() function to convert the encoded data back to binary. Since base64_decode returns a string, you can use file_put_contents() to write the decoded contents to a file. It makes me wonder why you're storing the image base64 encoded if you're not using it in that format. You could just as easily store the image in binary format in a binary blob column. Base64 encoding adds a 33% character overhead (not bytes). Edit for revised question The answer to your second question is subjective without context. Without knowing the details of your system, I can't recommend whether you should extract the images.
Decode it the same way you encoded it... base64_decode() You might want to store the file extension of the image when writing it to the database so that you can restore it accurately. Just concatenate the new name with the existing extension. What you should so is something similar to this : // Retrieved values from database $encodedImg = $sqlResult['encoded_img']; $ext = $sqlResult['encoded_img_ext']; // Concatenate new file name with existing extention // NOTE : This parameter is a full path. Make sure that the folder // you are writing the file to has the correct permissions allowing the // script write access. $newImagePath = "/some/path/on/the/servers/filesystem/"; $newImageName = $newImagePath."decoded_image.".$ext; // Saving the decoded file with the new file name. file_put_contents($newImageName, base64_decode($encodedImg));
PHP View Picture From Base64 String
I am connecting to Active-Directory and getting the thumbnailPhoto attribute successfully.
I have stored the file in the DB using Base64 encoding which makes the result look like:
/9j/4AAQSkZJRgABAQEAYABgAAD/4RHoRXhpZgAATU0AKgAAAAgABQEyAAIAAAAUAA ...
(Full Base64 encoded string: http://pastebin.com/zn2wDEmd)
Using a simple Base64 Decoder and decoding the string into a binary file and rename that to jpeg and open with an image viewer (here: Irfan View) I get the correct picture - see yourself:
How do I achieve this through PHP - I have tried using:
<?php
$data = '/9j/4A...'; //The entire base64 string - gives an error in dreamweaver
$data = base64_decode($data);
$fileTmp = imagecreatefromstring($data);
$newImage = imagecreatefromjpeg($fileTmp);
if (!$newImage) {
echo("<img src=".$newImage."/>");
}
?>
I'm just getting a blank page!
Your problem is that imagecreatefromstring() doesn't return a file, but rather an image in memory that should be output with the correct headers.
$data = base64_decode($data);
// Create image resource from your data string
$imgdata = imagecreatefromstring($data);
if ($imgdata) {
// Send JPEG headers
header("Content-type: image/jpeg");
// Output the image data
imagejpeg($imgdata);
// Clean up the resource
imagedestroy($imgdata);
exit();
}