WordPress mime types

MNews Pro 主题在开发自定义上传媒体文件到 WordPress 的媒体库时，进行文件后缀的判断，以防止出现不支持的文件后缀。但是在获取相关媒体文件时，使用 WP_Query 获取文件时只能通过 mime 类型来获取不同类型的文件，所以后缀是不起作用。

有些文件后缀和 mime 类型是一样的，比如 gif 后缀的文件 mime 则为 image/gif，有些则不一样，比如 mp3 后缀的文件 mime 则为 audio/mpeg，这时我们需要在「主题选项——常规——媒体」中的「允许上传的音频类型」中输入：mp3|mpeg，将 mime 后面的 mpeg 作为后缀添加到选项中，这样就在上传文件和获取中都有效。

array(90) {
    ["jpg|jpeg|jpe"]                 => "image/jpeg"
    ["gif"]                          => "image/gif"
    ["png"]                          => "image/png"
    ["bmp"]                          => "image/bmp"
    ["tiff|tif"]                     => "image/tiff"
    ["ico"]                          => "image/x-icon"
    ["asf|asx"]                      => "video/x-ms-asf"
    ["wmv"]                          => "video/x-ms-wmv"
    ["wmx"]                          => "video/x-ms-wmx"
    ["wm"]                           => "video/x-ms-wm"
    ["avi"]                          => "video/avi"
    ["divx"]                         => "video/divx"
    ["flv"]                          => "video/x-flv"
    ["mov|qt"]                       => "video/quicktime"
    ["mpeg|mpg|mpe"]                 => "video/mpeg"
    ["mp4|m4v"]                      => "video/mp4"
    ["ogv"]                          => "video/ogg"
    ["webm"]                         => "video/webm"
    ["mkv"]                          => "video/x-matroska"
    ["3gp|3gpp"]                     => "video/3gpp"
    ["3g2|3gp2"]                     => "video/3gpp2"
    ["txt|asc|c|cc|h|srt"]           => "text/plain"
    ["csv"]                          => "text/csv"
    ["tsv"]                          => "text/tab-separated-values"
    ["ics"]                          => "text/calendar"
    ["rtx"]                          => "text/richtext"
    ["css"]                          => "text/css"
    ["htm|html"]                     => "text/html"
    ["vtt"]                          => "text/vtt"
    ["dfxp"]                         => "application/ttaf+xml"
    ["mp3|m4a|m4b"]                  => "audio/mpeg"
    ["aac"]                          => "audio/aac"
    ["ra|ram"]                       => "audio/x-realaudio"
    ["wav"]                          => "audio/wav"
    ["ogg|oga"]                      => "audio/ogg"
    ["flac"]                         => "audio/flac"
    ["mid|midi"]                     => "audio/midi"
    ["wma"]                          => "audio/x-ms-wma"
    ["wax"]                          => "audio/x-ms-wax"
    ["mka"]                          => "audio/x-matroska"
    ["rtf"]                          => "application/rtf"
    ["js"]                           => "application/javascript"
    ["pdf"]                          => "application/pdf"
    ["class"]                        => "application/java"
    ["tar"]                          => "application/x-tar"
    ["zip"]                          => "application/zip"
    ["gz|gzip"]                      => "application/x-gzip"
    ["rar"]                          => "application/rar"
    ["7z"]                           => "application/x-7z-compressed"
    ["psd"]                          => "application/octet-stream"
    ["xcf"]                          => "application/octet-stream"
    ["doc"]                          => "application/msword"
    ["pot|pps|ppt"]                  => "application/vnd.ms-powerpoint"
    ["wri"]                          => "application/vnd.ms-write"
    ["xla|xls|xlt|xlw"]              => "application/vnd.ms-excel"
    ["mdb"]                          => "application/vnd.ms-access"
    ["mpp"]                          => "application/vnd.ms-project"
    ["docx"]                         => "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
    ["docm"]                         => "application/vnd.ms-word.document.macroEnabled.12"
    ["dotx"]                         => "application/vnd.openxmlformats-officedocument.wordprocessingml.template"
    ["dotm"]                         => "application/vnd.ms-word.template.macroEnabled.12"
    ["xlsx"]                         => "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
    ["xlsm"]                         => "application/vnd.ms-excel.sheet.macroEnabled.12"
    ["xlsb"]                         => "application/vnd.ms-excel.sheet.binary.macroEnabled.12"
    ["xltx"]                         => "application/vnd.openxmlformats-officedocument.spreadsheetml.template"
    ["xltm"]                         => "application/vnd.ms-excel.template.macroEnabled.12"
    ["xlam"]                         => "application/vnd.ms-excel.addin.macroEnabled.12"
    ["pptx"]                         => "application/vnd.openxmlformats-officedocument.presentationml.presentation"
    ["pptm"]                         => "application/vnd.ms-powerpoint.presentation.macroEnabled.12"
    ["ppsx"]                         => "application/vnd.openxmlformats-officedocument.presentationml.slideshow"
    ["ppsm"]                         => "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"
    ["potx"]                         => "application/vnd.openxmlformats-officedocument.presentationml.template"
    ["potm"]                         => "application/vnd.ms-powerpoint.template.macroEnabled.12"
    ["ppam"]                         => "application/vnd.ms-powerpoint.addin.macroEnabled.12"
    ["sldx"]                         => "application/vnd.openxmlformats-officedocument.presentationml.slide"
    ["sldm"]                         => "application/vnd.ms-powerpoint.slide.macroEnabled.12"
    ["onetoc|onetoc2|onetmp|onepkg"] => "application/onenote"
    ["oxps"]                         => "application/oxps"
    ["xps"]                          => "application/vnd.ms-xpsdocument"
    ["odt"]                          => "application/vnd.oasis.opendocument.text"
    ["odp"]                          => "application/vnd.oasis.opendocument.presentation"
    ["ods"]                          => "application/vnd.oasis.opendocument.spreadsheet"
    ["odg"]                          => "application/vnd.oasis.opendocument.graphics"
    ["odc"]                          => "application/vnd.oasis.opendocument.chart"
    ["odb"]                          => "application/vnd.oasis.opendocument.database"
    ["odf"]                          => "application/vnd.oasis.opendocument.formula"
    ["wp|wpd"]                       => "application/wordperfect"
    ["key"]                          => "application/vnd.apple.keynote"
    ["numbers"]                      => "application/vnd.apple.numbers"
    ["pages"]                        => "application/vnd.apple.pages"
}