{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdarudaru.hateblo.jp%2Fentry%2F2018%2F09%2F10%2F232247\" title=\"PHP\u306eNullable\u306a\u578b\u5ba3\u8a00 - darudaru\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","version":"1.0","author_url":"https://blog.hatena.ne.jp/skanoemon/","type":"rich","blog_url":"https://darudaru.hateblo.jp/","url":"https://darudaru.hateblo.jp/entry/2018/09/10/232247","image_url":null,"provider_url":"https://hatena.blog","description":"\u6700\u8fd1PHP7\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u305f\u308a\u3057\u3066\u307e\u3059\u3002 PHP7\u304b\u3089\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u578b\u5ba3\u8a00\u3092\u4f7f\u3063\u3066\u3001\u578b\u3067\u6700\u521d\u304b\u3089\u7e1b\u308c\u308b\u306e\u306f\u3044\u3044\u306a\u30fc\u3001\u6c17\u6301\u3061\u3044\u3044\u306a\u30fc\u3001\u3068\u601d\u3044\u306a\u304c\u3089\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3057\u3066\u305f\u306e\u3067\u3059\u304c\u3001 \u300c\u3042\u308c\u3001\u3067\u3082null\u306e\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u306f\u3069\u3093\u306a\u98a8\u306b\u578b\u5ba3\u8a00\u3059\u308c\u3070\u3044\u3044\u3093\u3060\u3063\u3051\uff1f\u300d\u3063\u3066\u601d\u3063\u3066\u8abf\u3079\u305f\u307e\u3068\u3081\u3002 PHP7.1\u4ee5\u4e0a\u306e\u5834\u5408 \u578b\u306e\u524d\u306b?\u3092\u3064\u3051\u308c\u3070\u3044\u3044\u3002 <?php function test(?string $text): ?string{ return $text; } var_dump(test('hogehoge')); // => string(8) \"hogehoge\" var_dump(test(\u2026","categories":["PHP"],"blog_title":"darudaru","author_name":"skanoemon","title":"PHP\u306eNullable\u306a\u578b\u5ba3\u8a00","width":"100%","published":"2018-09-10 23:22:47","height":"190"}