Mimetype

<?php

const MIME_TYPES = [
    'txt'  => 'text/plain',
    'htm'  => 'text/html',
    'html' => 'text/html',
    'php'  => 'text/html',
    'css'  => 'text/css',
    'js'   => 'application/javascript',
    'json' => 'application/json',
    'xml'  => 'application/xml',
    'swf'  => 'application/x-shockwave-flash',
    'flv'  => 'video/x-flv',

    // images
    'png'  => 'image/png',
    'jpe'  => 'image/jpeg',
    'jpeg' => 'image/jpeg',
    'jpg'  => 'image/jpeg',
    'gif'  => 'image/gif',
    'bmp'  => 'image/bmp',
    'ico'  => 'image/vnd.microsoft.icon',
    'tiff' => 'image/tiff',
    'tif'  => 'image/tiff',
    'svg'  => 'image/svg+xml',
    'svgz' => 'image/svg+xml',

    // archives
    'zip'  => 'application/zip',
    'rar'  => 'application/x-rar-compressed',
    'exe'  => 'application/x-msdownload',
    'msi'  => 'application/x-msdownload',
    'cab'  => 'application/vnd.ms-cab-compressed',

    // audio/video
    'mp3'  => 'audio/mpeg',
    'qt'   => 'video/quicktime',
    'mov'  => 'video/quicktime',

    // adobe
    'pdf'  => 'application/pdf',
    'psd'  => 'image/vnd.adobe.photoshop',
    'ai'   => 'application/postscript',
    'eps'  => 'application/postscript',
    'ps'   => 'application/postscript',

    // ms office
    'doc'  => 'application/msword',
    'rtf'  => 'application/rtf',
    'xls'  => 'application/vnd.ms-excel',
    'ppt'  => 'application/vnd.ms-powerpoint',

    // open office
    'odt'  => 'application/vnd.oasis.opendocument.text',
    'ods'  => 'application/vnd.oasis.opendocument.spreadsheet',
];