{"id":10961,"date":"2024-03-15T06:03:36","date_gmt":"2024-03-14T21:03:36","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/"},"modified":"2024-03-21T01:36:06","modified_gmt":"2024-03-20T16:36:06","slug":"10961-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/","title":{"rendered":""},"content":{"rendered":"

is_numeric\u95a2\u6570\u306f\u3001\u5909\u6570\u304c\u6570\u5b57\u307e\u305f\u306f\u6570\u5b57\u306e\u6587\u5b57\u5217\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5909\u6570\u304c\u6570\u5b57\u3068\u3057\u3066\u89e3\u91c8\u3067\u304d\u308b\u5834\u5408\u3001true\u3092\u8fd4\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306ffalse\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n

– \u4f8b\u3048\u3070\u3001<\/p>\n

$var1 = 10;\r\n$var2 = \"20\";\r\n$var3 = \"Hello\";\r\n\r\necho is_numeric($var1); \/\/ \u8f93\u51fa true\r\necho is_numeric($var2); \/\/ \u8f93\u51fa true\r\necho is_numeric($var3); \/\/ \u8f93\u51fa false\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
is_numeric\u95a2\u6570\u306f\u3001\u5909\u6570\u304c\u6570\u5b57\u307e\u305f\u306f\u6570\u5b57\u306e\u6587\u5b57\u5217\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5909\u6570\u304c\u6570\u5b57\u3068\u3057\u3066\u89e3\u91c8\u3067\u304d\u308b\u5834\u5408\u3001true\u3092\u8fd4\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306ffalse\u3092\u8fd4\u3057\u307e\u3059\u3002 – \u4f8b\u3048\u3070\u3001 $ […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10961","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- 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\/10961-2\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"is_numeric\u95a2\u6570\u306f\u3001\u5909\u6570\u304c\u6570\u5b57\u307e\u305f\u306f\u6570\u5b57\u306e\u6587\u5b57\u5217\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5909\u6570\u304c\u6570\u5b57\u3068\u3057\u3066\u89e3\u91c8\u3067\u304d\u308b\u5834\u5408\u3001true\u3092\u8fd4\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306ffalse\u3092\u8fd4\u3057\u307e\u3059\u3002 – \u4f8b\u3048\u3070\u3001 $ […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-14T21:03:36+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-20T16:36:06+00:00\" \/>\n<meta name=\"author\" content=\"\u590f\u6a39, \u98a8\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u590f\u6a39, \u98a8\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/\",\"name\":\"- Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#website\"},\"datePublished\":\"2024-03-14T21:03:36+00:00\",\"dateModified\":\"2024-03-20T16:36:06+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#\/schema\/person\/4e591db2661c4cc425470b461259391d\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/\",\"name\":\"Blog - 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Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/","og_locale":"ja_JP","og_type":"article","og_description":"is_numeric\u95a2\u6570\u306f\u3001\u5909\u6570\u304c\u6570\u5b57\u307e\u305f\u306f\u6570\u5b57\u306e\u6587\u5b57\u5217\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5909\u6570\u304c\u6570\u5b57\u3068\u3057\u3066\u89e3\u91c8\u3067\u304d\u308b\u5834\u5408\u3001true\u3092\u8fd4\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306ffalse\u3092\u8fd4\u3057\u307e\u3059\u3002 – \u4f8b\u3048\u3070\u3001 $ […]","og_url":"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2024-03-14T21:03:36+00:00","article_modified_time":"2024-03-20T16:36:06+00:00","author":"\u590f\u6a39, \u98a8","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"\u590f\u6a39, \u98a8"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/","url":"https:\/\/www.silicloud.com\/ja\/blog\/10961-2\/","name":"- Blog - 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