What is the issue with PHP and images where transparent areas are replaced with black color?

The issue with PHP and images where transparent areas are replaced with black color is due to the default behavior of PHP's imagecreatefrompng function, which does not handle transparency properly. To solve this issue, you can use the imagealphablending and imagesavealpha functions to preserve transparency in PNG images. 

$source = imagecreatefrompng('image.png');
imagealphablending($source, true);
imagesavealpha($source, true);

// Now you can use $source for further image processing without losing transparency

Keywords

PHP images transparency black color alpha channel

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