I have an image.png which is generated dynamically (barcode) and which is returned to html as
<img src="data:image/png;base64,B64STR" />
but it sometimes get defects (white dots).
To convert image to base64 string I use this code:
ob_start();
imagepng($img);
$contents = ob_get_contents();
ob_end_clean();
return base64_encode($contents);
Can be the output buffer be the cause of lost data? Can I convert the image to base64 some other way?
imagepng return a bool. Use file_get_contents without ob :
return base64_encode(file_get_contents($img));
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