TCPDF error :Unable to get the size of the image

问题

I am using TCPDF to create dynamically generated pdf file . In my pdf file a image is generated based on user input and I want to add that image on my pdf file . Here is my code

 $map_image = "example.com/wp-content/themes/example/map_image_leasing.php/?city=Calgary&suit_type=&min_area=&max_area=";

$pdf->Image ($map_image, 55, 19, '', '', 'JPG', '', 'T', false, 300, '', false, false, 0, false, false, false);

If i paste "example.com/wp-content/themes/example/map_image_leasing.php/?city=Calgary&suit_type=&min_area=&max_area=" this on my url this create image as I wanted , but If put this url , it doesn't work . It says Unable to get the size of the image

But if I put something like this

$map_image = '/wp-content/themes/v3/resources/images/public/logo_side.jpg';

It can generate pdf with that image successfully .

How can I solve it ?

I have visited the following stackoverflow link , but none of this came to any help

tcpdf working on localhost but not on my sever giving error TCPDF ERROR: [Image] Unable to get image:

cakephp tcpdf image error [Image] Unable to get image

TCPDF ERROR: [Image] Unable to get image

回答1:

This might be due to filesize() failing to stat() the remote image file via the HTTP wrapper (since the wrapper doesn't support it).

According to the TCPDF image() method documentation you can pass the image data in directly by prepending it with an @ symbol. So you could get the raw image data and then pass it to TCPDF like so:

$img = file_get_contents('http://example.com/wp-content/themes/example/map_image_leasing.php/?city=Calgary&suit_type=&min_area=&max_area=');

$pdf->Image('@' . $img, 55, 19, '', '', 'JPG', '', 'T', false, 300, '', false, false, 0, false, false, false);

Note that I haven't tested this (and the TCPDF documentation is sparse) so you might need to experiment a little to get it to work correctly.

Edit:

This is a fully working example (on my PC). Use this to test if you can successfully retrieve the image and output the PDF to your browser. Of course you'll need to set a known valid path for the image!

<?php

require './tcpdf/tcpdf.php';

$pdf = new TCPDF();

$pdf->AddPage();

$img = file_get_contents('http://path/to/your.jpg');
$pdf->Image('@' . $img);

$pdf->Output();

?>

回答2:

Confirm that the server is able to use PHP's file_get_contents or cURL to download the file. "Unable to get the size of the image" is the first error in the Image function that TCPDF will throw if the file is unaccessible to both of those functions on the server.

回答3:

To debug this issue you may delete the @ from @getimagesize($file) in tcpdf.php around line 6850. Search for [Image] Unable to get the size of the image: and scroll some lines up. The @ hides the actual error message.

If you are able to reach the image url from the browser, it may is, that your system does not point the url to the requested host. The related message is getimagesize(): php_network_getaddresses: getaddrinfo failed:. That means, that your local php configuration has no idea where to search for the url. In that case you need to alter your /etc/hosts file and point the local setup to the urls ip. This often is an issue on localhost setups.

E.g. 127.0.0.1 yoururlhere.local

回答4:

Make sure to use a relative path, some times absolutely path don't work

ok: "../../myImage.png"

wrong:"http://www.example.com/myImage.png"

回答5:

I had this error on my Magento store.

If you open tcpdf.php you will find this code, $file was a url when it should be jut the path to the file:

// check if is a local file
if (!@file_exists($file)) {
        // try to encode spaces on filename
        $tfile = str_replace(' ', '%20', $file);

For a quick fix I added this code:

$file = str_replace("http://theurliwantgone/","",$tfile);

and it worked! Hope this helps most of you!

回答6:

Oddly for me (in 2019) I found that I had to remove the ! of line 1924 in include/tcpdf_static.php. For some reason it would only look at ini_get('allow_url_fopen') if it was false but my server setting was true - so amended the code and it worked fine. This also was previously working but suddenly stopped!

回答7:

Search around line 6877 in tcpdf.php

if ($imsize === FALSE) {
        if (($w > 0) AND ($h > 0)) {
            // get measures from specified data
            $pw = $this->getHTMLUnitToUnits($w, 0, $this->pdfunit, true) * $this->imgscale * $this->k;
            $ph = $this->getHTMLUnitToUnits($h, 0, $this->pdfunit, true) * $this->imgscale * $this->k;
            $imsize = array($pw, $ph);
        } else {
            $this->Error('[Image] Unable to get the size of the image: '.$file);
        }
    }

Change to:

if ($imsize === TRUE) {
        if (($w > 0) AND ($h > 0)) {
            // get measures from specified data
            $pw = $this->getHTMLUnitToUnits($w, 0, $this->pdfunit, true) * $this->imgscale * $this->k;
            $ph = $this->getHTMLUnitToUnits($h, 0, $this->pdfunit, true) * $this->imgscale * $this->k;
            $imsize = array($pw, $ph);
        } else {
            $this->Error('[Image] Unable to get the size of the image: '.$file);
        }
    }

来源：https://stackoverflow.com/questions/27060947/tcpdf-error-unable-to-get-the-size-of-the-image

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php

image

tcpdf