{"title":"is_null\u3068isset - php","categories":["\u8ee2\u3076\u524d\u306b\u8aad\u3081","\u8ee2\u3076\u524d\u306b\u8aad\u3081-php"],"author_url":"https://blog.hatena.ne.jp/hikaru217/","url":"https://blog.yutenji.biz/entry/2020/03/05/233613","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.yutenji.biz%2Fentry%2F2020%2F03%2F05%2F233613\" title=\"is_null\u3068isset - php - \u9084\u66a6\u904e\u304e\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u6311\u6226\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u9084\u66a6\u904e\u304e\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u6311\u6226","width":"100%","image_url":"https://cdn.yutenji.biz/img/php.png","author_name":"hikaru217","blog_url":"https://blog.yutenji.biz/","version":"1.0","type":"rich","description":"\u4f55\u3092\u8a00\u3044\u305f\u3044\u304b\u3068\u3044\u3046\u3068\u3001\u305d\u306e\u5909\u6570\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3082\u308f\u304b\u3089\u306a\u3044\u6642\u306b\u3001\u4e2d\u8eab\u304c\u7a7a\u3063\u307d\u304b\u3069\u3046\u304b\u3092\u76f4\u306b\u805e\u3044\u3066\u3082\u826f\u3044\uff1f \u3068\u3044\u3046\u8a71\u306a\u3093\u3060\u3051\u3069\u3044\u3064\u3082\u3069\u3046\u3060\u3063\u3051\uff1f\u3063\u3066\u306a\u308b\u3002 \u3067\u3001\u3046\u3063\u304b\u308a\u3059\u308b\u3068\u5909\u6570\u304c\u3061\u3083\u3093\u3068\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u5b9f\u884c\u3057\u305f\u3044\u3068\u3044\u3046\u6c17\u6301\u3061\u3067 if (isset($x) && is_null($x) === false) {\u3084\u308a\u305f\u3044\u4e8b} \u306a\u3093\u3066\u66f8\u3044\u3066\u3044\u305f\u308a\u3059\u308b\u3002 isset()\u306f\u305d\u306e\u5909\u6570\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u3066\u5185\u5bb9\u304cnull\u3067\u306f\u306a\u3044\u3068\u304d\u306btrue\u3092\u8fd4\u3059\u95a2\u6570\u306a\u306e\u3067 if (isset($x)) {\u3084\u308a\u305f\u3044\u4e8b} \u3068\u3001\u30b7\u30f3\u30d7\u30eb\u306b\u66f8\u3051\u3070OK\u306a\u3093\u3060\u3088\u306d\u3002\u3002\u3002(;^_^ is_null()\u3068isset() === f\u2026","published":"2020-03-05 23:36:13","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","height":"190"}