{"id":7152,"date":"2024-03-14T20:53:08","date_gmt":"2024-03-14T11:53:08","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/php%e3%81%aefileinfo%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/"},"modified":"2025-08-03T13:01:39","modified_gmt":"2025-08-03T04:01:39","slug":"php%e3%81%aefileinfo%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/php%e3%81%aefileinfo%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/","title":{"rendered":"PHP fileinfo\u95a2\u6570\u3068\u306f\uff1f\u30d5\u30a1\u30a4\u30eb\u60c5\u5831\u53d6\u5f97\u306e\u57fa\u672c\u3068\u5b9f\u8df5"},"content":{"rendered":"

PHP\u306eFileinfo\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u60c5\u5831\uff08\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e\u3001MIME\u30bf\u30a4\u30d7\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3001\u6a29\u9650\u306a\u3069\uff09\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308bPHP\u62e1\u5f35\u6a5f\u80fd\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u5c5e\u6027\u3092\u691c\u51fa\u304a\u3088\u3073\u62bd\u51fa\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u7fa4\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001Fileinfo\u62e1\u5f35\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u8005\u306f\u3088\u308a\u7c21\u5358\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u6271\u3044\u3001\u8b58\u5225\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u5b89\u5168\u6027\u3068\u6b63\u78ba\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

Fileinfo\u62e1\u5f35\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u57fa\u672c\u7684\u306a\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/p>\n

    \n
  1. \u6700\u521d\u306b\u3001Fileinfo\u62e1\u5f35\u6a5f\u80fd\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3001\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001php.ini\u30d5\u30a1\u30a4\u30eb\u3092\u4f7f\u7528\u3059\u308b\u304b\u3001\u30b3\u30fc\u30c9\u5185\u3067extension_loaded()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u8aad\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n
  2. finfo_open()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001Fileinfo\u30ea\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n
  3. finfo_file()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u6307\u5b9a\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306e\u5c5e\u6027\u3092\u691c\u51fa\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u306eMIME\u30bf\u30a4\u30d7\u3084\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e\u306a\u3069\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/li>\n
  4. finfo_close()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001Fileinfo\u30ea\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u9589\u3058\u3066\u30ea\u30bd\u30fc\u30b9\u3092\u89e3\u653e\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u4ee5\u4e0b\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n

    $filePath<\/span> = 'example.txt'<\/span>;\r\n\r\n$fileInfo<\/span> = finfo_open<\/span>(FILEINFO_MIME_TYPE);\r\n$fileType<\/span> = finfo_file<\/span>($fileInfo<\/span>, $filePath<\/span>);\r\n\r\necho<\/span> \"File type: $fileType<\/span>\"<\/span>;\r\n\r\nfinfo_close<\/span>($fileInfo<\/span>);\r\n<\/code><\/pre>\n
    \u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306eMIME\u30bf\u30a4\u30d7\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002Fileinfo\u62e1\u5f35\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30d5\u30a1\u30a4\u30eb\u60c5\u5831\u3092\u7c21\u5358\u304b\u3064\u8fc5\u901f\u306b\u53d6\u5f97\u3067\u304d\u3001\u958b\u767a\u8005\u304c\u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u3092\u884c\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP\u306eFileinfo\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u60c5\u5831\uff08\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e\u3001MIME\u30bf\u30a4\u30d7\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3001\u6a29\u9650\u306a\u3069\uff09\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308bPHP\u62e1\u5f35\u6a5f\u80fd\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u5c5e\u6027\u3092\u691c\u51fa\u304a\u3088\u3073\u62bd\u51fa\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u7fa4\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001Filei […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2516,161,2517,26,407],"class_list":["post-7152","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-fileinfo","tag-php","tag-2517","tag-26","tag-407"],"yoast_head":"\nPHP fileinfo\u95a2\u6570\u3068\u306f\uff1f\u30d5\u30a1\u30a4\u30eb\u60c5\u5831\u53d6\u5f97\u306e\u57fa\u672c\u3068\u5b9f\u8df5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"PHP\u306efileinfo\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u3092\u89e3\u8aac\u3002\u30d5\u30a1\u30a4\u30eb\u306eMIME\u30bf\u30a4\u30d7\u3084\u30a8\u30f3\u30b3\u30fc\u30c9\u3092\u7c21\u5358\u306b\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u57fa\u672c\u304b\u3089\u5b9f\u8df5\u4f8b\u307e\u3067\u3001\u521d\u5fc3\u8005\u306b\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/php\u306efileinfo\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP fileinfo\u95a2\u6570\u3068\u306f\uff1f\u30d5\u30a1\u30a4\u30eb\u60c5\u5831\u53d6\u5f97\u306e\u57fa\u672c\u3068\u5b9f\u8df5\" \/>\n<meta property=\"og:description\" content=\"PHP\u306efileinfo\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u3092\u89e3\u8aac\u3002\u30d5\u30a1\u30a4\u30eb\u306eMIME\u30bf\u30a4\u30d7\u3084\u30a8\u30f3\u30b3\u30fc\u30c9\u3092\u7c21\u5358\u306b\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u57fa\u672c\u304b\u3089\u5b9f\u8df5\u4f8b\u307e\u3067\u3001\u521d\u5fc3\u8005\u306b\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/php\u306efileinfo\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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