I have a perfectly working setup of FPFD on my localhost(windows) it generates the pdf files alright. However, when i uploaded to the production environment(Linux), it throws this silly error.
I have been trying to trouble shoot for the past 2hrs now. the error does not give any pointers as to where the stream is suddenly ending. Have posted on their forum but that place looks dead to me.
Please who has used or encountered this error before?
Any help will be greatly appreciated.
After hours and days or researching, I found that a png image I was trying to use was not uploaded successfully....it was partially uploaded....I minified the image and reuploaded, and the error disappeared.
This error occur because of the image is not completely uploaded to the particular folder you are storing . Example-> creating an image but that image is not complete then it will give this error . so in this case first check that image is there or not and then put the static url to the pdf->image('static url which you can see in you web browser',0,0,-72) and the check it or else use any web image url to check it .
And when your have space or dot in you url that you are creating after uploading Example-> https://adc.com/ xyz .png it will also create the same problem .
Related
Recently I have moved from my staging server to production server and I don't have access to any of these servers.
Both of these servers are linux.
On the new server while generating the pdf using mPDF with symfony 1.4 framework, images like rupee symbol are not getting displayed instead a small red "x" symbol is getting displayed in pdf.
Also, when I try to give background image to pdf, full image path like "http://example.com/image/rupee-image.jpg" is getting displayed instead of image.
Rupee symbol, other images and background images are working fine on my staging server.
When, I did $mpdf->showImageError(), It's saying "mPDF Image Error: Could not find image file" and pasting the url in browser displays the image perfectly.
Any help will be greatly appreciated.
mPDF is telling you that it's not finding the image.
Without seeing your code it's difficult to hint you on what's wrong.
Still you probably what to try referring to your images using a full path locally.
So instead of reference like http://example.com/image/rupee-image.jpg
use something like /var/www/mysite/image/rupee-image.jpg , same as if checking the image is there using the command line.
HTH
I had similar problem, i fixed it with replacing http:// to https://. Watch out for it.
I fixed it myself... I have created a variable in my template and then replaced that variable with image location from my action class, using $mpdf->WriteHTML(str_replace('rupee_symbol','₹',$html1));
My problem was PHP 7 in this case! I check condition
if (!empty('/images/someimg.png')) {
echo '<img ...';
} else {
echo 'error in PHP 7';
}
Be carefull using it. Version PHP 7.0.19
I have a DB system built in PHP/MySql. I'm fairly new at this. The system allows the user to upload an invoice. Others give permission to pay the invoice. The accounting person uploads the check. After check is uploaded, it generates a PDF as a cover, then uses PDFTK (using Ben Squire's PDFTK-PHP-Library) to combine all of the files together and present the user with a single PDF to download.
Some users upload PDF files which cause PDFTK to hang indefinitely when it tries to combine the PDF with others (but most of the time it works fine). No returned error, just hangs. In order to get back onto the sytem, user must clear cache and re-log in. There are no error messages logged by the server, it just freezes. The only difference I can find in the files that do or do not work in looking at them with Acrobat is that the bad files are legal sized (8.5 x 14) ... but if I create my own legal sized file and try that, it works fine.
Using Putty I've gone to command line and replicated the same problem, PDFTK can't read the file, it hangs on the command line as well. I tried using PDFMerge which uses FPDF to combine the files and get an error with the file as well (The error I get back from this is: FPDF error: Unable to find object (4, 0) at expected location). On the command line I was able to use ImageMagick to convert PDF to JPG, but it gives me an error: "Warning: File has an invalid xref entry: 2. Rebuilding xref table." and then it converts it to a jpg but gives a few other less helpful warnings.
If I could get PHP to check the PDF file to determine if is valid without hanging the system, I could use ImageMagick to convert the file and then convert it back to a PDF, but I don't want to do this to all files. How can I get it to check the validity of the file when uploaded to see if it needs to be converted without causing the system to hang?
Here is a link to a file that is causing problems: http://www.cssc-testing.org/accounting/school_9/20130604-a1atransportation-1.pdf
Thanks in advance for any guidance you can offer!
My Code (which I'm guessing is not very clean, as I'm new):
$pdftk = new pdftk();
if($create_cover) { $pdftk->setInputFile(array("filename" => $cover_page['server'])); }
// Load a list of attachments
$sql = "SELECT * FROM actg_attachments WHERE trans_id = {$trans_id}";
$attachments = Attachment::find_by_sql($sql);
foreach($attachments as $attachment) {
// Check if the file exists from the attachments
$attachment->set_variables();
$file = $attachment->abs_path . DS . $attachment->filename;
if(file_exists($file)){
// Use the pdftk tool to attach the documents to this PDF
$pdftk->setInputFile(array("filename" => $file));
}
}
$pdftk->setOutputFile($save_file);
$pdftk->_renderPdf();
the $pdftk class it is calling is from: https://github.com/bensquire/php-pdtfk-toolkit
You could possibly use Ghostscript using exec() to check the file.
The non-accepted answer here may help:
How can you find a problem with a programmatically generated PDF?
I wont say this is an appropriate/best fix, but it may resolve your problem,
In: pdf_parser.php, comment out the line:
$this->error("Unable to find object ({$obj_spec[1]}, {$obj_spec[2]}) at expected location");
It should be near line 544.
You'll also likely need to replace:
if (!is_array($kids))
$this->error('Cannot find /Kids in current /Page-Dictionary');
with:
if (!is_array($kids)){
// $this->error('Cannot find /Kids in current /Page-Dictionary');
return;
}
in the fpdi_pdf_parser.php file
Hope that helps. It worked for me.
Do the following steps to Understand the problem clearly :
Open notepad.
Type something and save it as " .png " (or any other image format).
Try to upload it as a image file with extension validation.
Now try to display it.
Expected : To show error while uploading
Actual : The file gets easily uploaded without any problem and error occurs only while accessing it.
mime_content_type() is deprecated function.
instead you can use
<?php
print_r(getimagesize("listing.png"));
?>
if this shows error then the file is invalid png file. If file is valid it returns an array of information.
Edit: This works if you are working with images only.
I have a PHP script that takes an images, checks type and filesize, then creates 2 resized copies of the master image, all 3 images are saved to the server. I was under the impression everything worked fine. I was testing out script and on one jpg image I got thrown the error "Content Encoding Error" by firefox. Doing some reading suggested this was a Firefox issue but testing in IE and Chrome resulted in similar errors.
The odd thing is that some .jpg files work, others don't. For those that don't work the error is occurring when the script comes to encode the second resized copy as the master, and first copy are outputted to specified folder. I have checked to see that the image itself isn't corrupt after doing some more reading. The only difference I could note between a .jpg that would allow the script to complete fully and one that wouldn't was that, when viewing the properties of the failing one within Windows it appeared to carry more data, such as camera used to, model number, etc.
Does anyone know what might be causing this error to be thrown?
EDIT
Here's the code I'm using.
$imgsrc = imagecreatefromjpeg($file);
imagecopyresampled($thbout,$imgsrc,0,0,0,0,$thbwid,$thbhei,$width,$height);
imagejpeg($thbout,$thbpath,80);
imagedestroy($thbout);
imagecopyresampled($optout,$imgsrc,0,0,0,0,$optwid,$opthei,$width,$height);
imagejpeg($optout,$optpath,80);
imagedestroy($optout);
Having played about a bit tonight I got it working, by switching the code to this. (Switch to create larger file first)
$imgsrc = imagecreatefromjpeg($file);
imagecopyresampled($optout,$imgsrc,0,0,0,0,$optwid,$opthei,$width,$height);
imagejpeg($optout,$optpath,80);
imagedestroy($optout);
imagecopyresampled($thbout,$imgsrc,0,0,0,0,$thbwid,$thbhei,$width,$height);
imagejpeg($thbout,$thbpath,80);
imagedestroy($thbout);
So I guess my new question becomes, why does it behave like this?
I want to print this PHP image http://www.putlocker.com/include/captcha.php?_CAPTCHA&t=0.94178300+1332596358 in my PHP script.
Source (is the captcha image): http://www.putlocker.com/authenticate.php?login
What can I do?
It doesn't seem to let you access that image other than by viewing it on the webpage. The captach image contains a time parameter (&t=sometime). It also throws a 500 server error so unless you're willing to work this out then I'd probably just leave it alone.