{"id":78329,"date":"2024-03-20T19:41:21","date_gmt":"2024-03-20T10:41:21","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/%e6%95%b0%e5%80%a4%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/"},"modified":"2025-08-12T01:40:57","modified_gmt":"2025-08-11T16:40:57","slug":"%e6%95%b0%e5%80%a4%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/%e6%95%b0%e5%80%a4%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af\/","title":{"rendered":"\u6570\u5024\u306b\u5909\u63db\u3059\u308b\u306b\u306f"},"content":{"rendered":"

PHP\u3067\u306f\u3001\u7d44\u307f\u8fbc\u307f\u95a2\u6570ord()\u3068chr()\u3092\u4f7f\u3063\u3066\u3001\u6587\u5b57\u304b\u3089\u6570\u5b57\u3078\u306e\u5909\u63db\u3068\u6570\u5b57\u304b\u3089\u6587\u5b57\u3078\u306e\u5909\u63db\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \n
  1. ord() \u95a2\u6570\u3067\u6587\u5b57\u3092 ASCII \u30b3\u30fc\u30c9\u5024\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002<\/li>\n
  2. chr()\u95a2\u6570\u306fASCII\u30b3\u30fc\u30c9\u306e\u5024\u306b\u5bfe\u5fdc\u3059\u308b\u6587\u5b57\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u6587\u5b57\u3092\u6570\u5b57\u306b\u5909\u63db\u3059\u308b\u30b3\u30fc\u30c9\u306e\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059<\/p>\n

    $letter<\/span> = 'A'<\/span>;\r\n$number<\/span> = ord<\/span>($letter<\/span>) - ord<\/span>('A'<\/span>) + 1<\/span>;\r\necho<\/span> $number<\/span>;  \/\/ \u8f93\u51fa 1<\/span>\r\n<\/code><\/pre>\n
    \u4e0a\u306e\u4f8b\u3067\u306f\u3001\u6587\u5b57\u300cA\u300d\u3092\u6570\u5b57\u306e1\u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
    \u6570\u5b57\u3092\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u306b\u5909\u63db\u3059\u308b\u30b3\u30fc\u30c9\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n
    $number<\/span> = 1<\/span>;\r\n$letter<\/span> = chr<\/span>($number<\/span> + ord<\/span>('A'<\/span>) - 1<\/span>);\r\necho<\/span> $letter<\/span>;  \/\/ \u8f93\u51fa A<\/span>\r\n<\/code><\/pre>\n
    \u4e0a\u306e\u4f8b\u3067\u306f\u3001\u6570\u5b57\u306e 1 \u3092\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u306e ‘A’ \u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
    \u6ce8\u610f\uff1a\u3053\u306e\u5909\u63db\u306f\u5927\u6587\u5b57\u306b\u306e\u307f\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u5c0f\u6587\u5b57\u3092\u6570\u5b57\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001ord(‘A’) \u3092 ord(‘a’) \u306b\u5909\u66f4\u3057\u3066\u3001\u305d\u308c\u306b\u5fdc\u3058\u3066\u8a08\u7b97\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP\u3067\u306f\u3001\u7d44\u307f\u8fbc\u307f\u95a2\u6570ord()\u3068chr()\u3092\u4f7f\u3063\u3066\u3001\u6587\u5b57\u304b\u3089\u6570\u5b57\u3078\u306e\u5909\u63db\u3068\u6570\u5b57\u304b\u3089\u6587\u5b57\u3078\u306e\u5909\u63db\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 ord() \u95a2\u6570\u3067\u6587\u5b57\u3092 ASCII \u30b3\u30fc\u30c9\u5024\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002 chr()\u95a2\u6570\u306fASCII\u30b3\u30fc\u30c9\u306e […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-78329","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\n\u6570\u5024\u306b\u5909\u63db\u3059\u308b\u306b\u306f - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u6570\u5024\u306b\u5909\u63db\u3059\u308b\u306b\u306f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\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\/\u6570\u5024\u306b\u5909\u63db\u3059\u308b\u306b\u306f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6570\u5024\u306b\u5909\u63db\u3059\u308b\u306b\u306f\" \/>\n<meta property=\"og:description\" content=\"\u6570\u5024\u306b\u5909\u63db\u3059\u308b\u306b\u306f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/\u6570\u5024\u306b\u5909\u63db\u3059\u308b\u306b\u306f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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