responsive_image_get_mime_type($image_style_name, $extension)
Determines the MIME type of an image.
Parameters
string $image_style_name: The image style that will be applied to the image.
string $extension: The original extension of the image (without the leading dot).
Return value
string The MIME type of the image after the image style is applied.
File
- core/modules/responsive_image/responsive_image.module, line 474
- Responsive image display formatter for image fields.
Code
function responsive_image_get_mime_type($image_style_name, $extension) {
if ($image_style_name == RESPONSIVE_IMAGE_EMPTY_IMAGE) {
return 'image/gif';
}
// The MIME type guesser needs a full path, not just an extension, but the
// file doesn't have to exist.
if ($image_style_name === RESPONSIVE_IMAGE_ORIGINAL_IMAGE) {
$fake_path = 'responsive_image.' . $extension;
}
else {
$fake_path = 'responsive_image.' . ImageStyle::load($image_style_name)->getDerivativeExtension($extension);
}
return Drupal::service('file.mime_type.guesser.extension')->guess($fake_path);
}
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