{"id":2109,"date":"2025-04-15T00:46:35","date_gmt":"2025-04-14T15:46:35","guid":{"rendered":"https:\/\/www.dogrow.net\/php\/?p=2109"},"modified":"2025-04-15T01:05:30","modified_gmt":"2025-04-14T16:05:30","slug":"blog80-null%e5%90%88%e4%bd%93%e6%bc%94%e7%ae%97%e5%ad%90%e3%82%92%e4%bd%bf%e3%81%86%e3%81%a8%e3%82%b7%e3%83%b3%e3%83%97%e3%83%ab%e3%81%ab%e6%9b%b8%e3%81%91%e3%82%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.dogrow.net\/php\/blog80-null%e5%90%88%e4%bd%93%e6%bc%94%e7%ae%97%e5%ad%90%e3%82%92%e4%bd%bf%e3%81%86%e3%81%a8%e3%82%b7%e3%83%b3%e3%83%97%e3%83%ab%e3%81%ab%e6%9b%b8%e3%81%91%e3%82%8b%e3%80%82\/","title":{"rendered":"(80) null\u5408\u4f53\u6f14\u7b97\u5b50\u3092\u4f7f\u3046\u3068\u30b7\u30f3\u30d7\u30eb\u306b\u66f8\u3051\u308b\u3002"},"content":{"rendered":"<p>\u3053\u3093\u306a\u3053\u3068\u3092\u66f8\u304d\u305f\u304f\u306a\u308b\u3053\u3068\u304c\u3057\u3070\u3057\u3070\u3042\u308b\u3002<\/p>\n<pre class=\"my_pre_python\">\r\nif (isset($aaa['AAA'])) {\r\n    $str = $aaa['AAA'];\r\n} else {\r\n    $str = 'BBB';\r\n}\r\n<\/pre>\n<p>\u77ed\u304f\u3057\u305f\u3064\u3082\u308a\u3067\u3053\u3093\u306a\u98a8\u306b\u66f8\u3044\u305f\u308a\u3082\u3059\u308b\u3002<\/p>\n<pre class=\"my_pre_python\">\r\n$str = (isset($aaa['AAA']))? $aaa['AAA'] : 'BBB';\r\n<\/pre>\n<p>\u3067\u3082\u3001\u3053\u3046\u66f8\u3044\u305f\u65b9\u304c\u30b7\u30f3\u30d7\u30eb\u3060\u3002<\/p>\n<pre class=\"my_pre_python\">\r\n$str = $aaa['AAA'] ?? 'BBB';\r\n<\/pre>\n<p>\u3053\u306e <span class=\"my_fc_deeppinkBBig\">??<\/span> \u3092 <span class=\"my_fc_deeppinkB\">null\u5408\u4f53\u6f14\u7b97\u5b50 (null coalescing operator)<\/span> \u3068\u8a00\u3046\u3002<\/p>\n<p><span class=\"my_fc_deeppinkB\">PHP 7.0\u4ee5\u964d\u3067\u4f7f\u7528\u53ef\u80fd<\/span> \u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/p>\n<hr class=\"my_hr_bottom\">\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306a\u3053\u3068\u3092\u66f8\u304d\u305f\u304f\u306a\u308b\u3053\u3068\u304c\u3057\u3070\u3057\u3070\u3042\u308b\u3002 if (isset($aaa[&#8216;AAA&#8217;])) { $str = $aaa[&#8216;AAA&#8217;]; } else { $str = &#8216;BBB&#8217;; } \u77ed\u304f\u3057\u305f\u3064\u3082\u308a\u3067\u3053\u3093\u306a\u98a8\u306b\u66f8\u3044\u305f\u2026 <span class=\"read-more\"><a href=\"https:\/\/www.dogrow.net\/php\/blog80-null%e5%90%88%e4%bd%93%e6%bc%94%e7%ae%97%e5%ad%90%e3%82%92%e4%bd%bf%e3%81%86%e3%81%a8%e3%82%b7%e3%83%b3%e3%83%97%e3%83%ab%e3%81%ab%e6%9b%b8%e3%81%91%e3%82%8b%e3%80%82\/\">\u7d9a\u304d\u3092\u8aad\u3080 &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,30],"tags":[],"class_list":["post-2109","post","type-post","status-publish","format-standard","hentry","category-31","category-30"],"views":573,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/posts\/2109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/comments?post=2109"}],"version-history":[{"count":4,"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/posts\/2109\/revisions"}],"predecessor-version":[{"id":2113,"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/posts\/2109\/revisions\/2113"}],"wp:attachment":[{"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/media?parent=2109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/categories?post=2109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dogrow.net\/php\/wp-json\/wp\/v2\/tags?post=2109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}