{"id":110901,"date":"2024-03-22T17:45:57","date_gmt":"2024-03-22T08:45:57","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/php-empty%e9%96%a2%e6%95%b0%e3%81%ae%e6%a9%9f%e8%83%bd\/"},"modified":"2024-04-05T01:31:13","modified_gmt":"2024-04-04T16:31:13","slug":"php-empty%e9%96%a2%e6%95%b0%e3%81%ae%e6%a9%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/php-empty%e9%96%a2%e6%95%b0%e3%81%ae%e6%a9%9f%e8%83%bd\/","title":{"rendered":"php empty\u95a2\u6570\u306e\u6a5f\u80fd"},"content":{"rendered":"

PHP\u306eempty\u95a2\u6570\u306e\u6a5f\u80fd\uff1a<\/p>\n

    \n
  1. \ubcc0\uc218\uac00 \ube44\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uae30: empty() \ud568\uc218\ub294 \ubcc0\uc218\uac00 \ube44\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4. \ubcc0\uc218\uc758 \uac12\uc774 0, \uacf5\ubc31 \ubb38\uc790\uc5f4, \uacf5\ubc31 \ubc30\uc5f4, null, false, \ub610\ub294 \uc815\uc758\ub418\uc9c0 \uc54a\uc740 \uacbd\uc6b0 true\ub97c \ubc18\ud658\ud558\uace0, \uadf8\ub807\uc9c0 \uc54a\uc73c\uba74 false\ub97c \ubc18\ud658\ud569\ub2c8\ub2e4.<\/li>\n
  2. \u914d\u5217\u304c\u7a7a\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\uff1aempty \u95a2\u6570\u306f\u3001\u6e21\u3055\u308c\u305f\u5f15\u6570\u304c\u914d\u5217\u306e\u5834\u5408\u3001\u305d\u306e\u914d\u5217\u304c\u7a7a\u304b\u3069\u3046\u304b\u3001\u3064\u307e\u308a\u8981\u7d20\u3092\u542b\u307e\u306a\u3044\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u914d\u5217\u304c\u7a7a\u306e\u5834\u5408\u3001 true \u3092\u8fd4\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306f false \u3092\u8fd4\u3057\u307e\u3059\u3002<\/li>\n
  3. \u6587\u5b57\u5217\u304c\u7a7a\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u308b\uff1aempty \u95a2\u6570\u306f\u6587\u5b57\u5217\u3092\u5f15\u6570\u306b\u53d7\u3051\u53d6\u308a\u3001\u305d\u308c\u304c\u7a7a\u6587\u5b57\u5217\u304b\u5426\u304b\u3092\u5224\u5b9a\u3057\u307e\u3059\u3002\u6587\u5b57\u5217\u304c\u7a7a\u3067\u3042\u308c\u3070 true\u3001\u7a7a\u3067\u306a\u3051\u308c\u3070 false \u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/li>\n
  4. \u7a7a\u304b\u3069\u3046\u304b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u691c\u67fb\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u6e21\u3055\u308c\u308b\u3068\u3001empty\u95a2\u6570\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e__isset()\u30de\u30b8\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u7a7a\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3057\u307e\u3059\u3002__isset()\u30e1\u30bd\u30c3\u30c9\u304cFalse\u3092\u8fd4\u3057\u305f\u5834\u5408\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u7a7a\u3068\u898b\u306a\u3055\u308c\u3001empty\u95a2\u6570\u306fTrue\u3092\u8fd4\u3057\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306fFalse\u3092\u8fd4\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002Empty\u95a2\u6570\u306f0\u3092\u5224\u65ad\u3059\u308b\u969b\u3001true\u3092\u8fd4\u3057\u307e\u3059\u3002\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3068\u306e\u5224\u5b9a\u65b9\u6cd5\u304c\u7570\u306a\u308b\u305f\u3081\u3001\u6ce8\u610f\u3057\u3066\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    PHP\u306eempty\u95a2\u6570\u306e\u6a5f\u80fd\uff1a \ubcc0\uc218\uac00 \ube44\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uae30: empty() \ud568\uc218\ub294 \ubcc0\uc218\uac00 \ube44\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4. \ubcc0\uc218\uc758 \uac12\uc774 0, \uacf5\ubc31 \ubb38\uc790\uc5f4, \uacf5\ubc31 \ubc30\uc5f4, null, false, \ub610\ub294 \uc815\uc758\ub418\uc9c0 \uc54a […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-110901","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nphp empty\u95a2\u6570\u306e\u6a5f\u80fd - Blog - Silicon Cloud<\/title>\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-empty\u95a2\u6570\u306e\u6a5f\u80fd\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"php empty\u95a2\u6570\u306e\u6a5f\u80fd\" \/>\n<meta property=\"og:description\" content=\"PHP\u306eempty\u95a2\u6570\u306e\u6a5f\u80fd\uff1a \ubcc0\uc218\uac00 \ube44\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uae30: empty() \ud568\uc218\ub294 \ubcc0\uc218\uac00 \ube44\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4. \ubcc0\uc218\uc758 \uac12\uc774 0, \uacf5\ubc31 \ubb38\uc790\uc5f4, \uacf5\ubc31 \ubc30\uc5f4, null, false, \ub610\ub294 \uc815\uc758\ub418\uc9c0 \uc54a […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/php-empty\u95a2\u6570\u306e\u6a5f\u80fd\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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