High Efficiency Image Container

import magic
print(magic.from_file('photo.heic', mime=True)) # May output 'image/heic' or 'image/heif' depending on libmagic configuration

const FileType = require('file-type');
const type = await FileType.fromFile('photo.heic');
console.log(type.mime); // image/heic

import "net/http"

mimeType := http.DetectContentType(fileBytes)
// Standard Go net/http may default to application/octet-stream; use a specialized ISOBMFF/filetype library

$mime = mime_content_type('photo.heic');
echo $mime; // Standard environments often require an updated magic.mime file to correctly identify HEIC