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endroid / qr-code

QR Code Generator
https://endroid.nl
MIT License
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Suppress unexpected libpng warning when added a logo #372

Closed louislam closed 2 years ago

louislam commented 2 years ago

PHP Version: 8.1.0

Problem: When added some png files as a logo, it will throw a warning like this:

PHP Warning: imagecreatefromstring(): gd-png: libpng warning: iCCP: known incorrect sRGB profile

In some php frameworks, they treated it as an exception which end the program immediately and cannot generate the qr code.

Related issue: https://github.com/dompdf/dompdf/issues/2718

Reproduce:

<?php
$data = file_get_contents("https://user-images.githubusercontent.com/1336778/167459293-12d01436-33ac-432d-b8a1-fac00ef113c1.png");

// Error!!
$im = imagecreatefromstring($data);

// Fix
// $im = @imagecreatefromstring($data);

if ($im !== false) {
    echo "OK";
} else {
    echo "Not OK";
}
endroid commented 2 years ago

Thank you @louislam