{"id":20,"date":"2021-11-24T10:48:25","date_gmt":"2021-11-24T10:48:25","guid":{"rendered":"https:\/\/www.b64.pw\/blog\/?p=20"},"modified":"2021-11-24T10:50:47","modified_gmt":"2021-11-24T10:50:47","slug":"php%e3%81%ae%e3%82%af%e3%83%a9%e3%82%b9%e3%81%aeconst%e3%83%a1%e3%83%b3%e3%83%90%e3%81%8c%e5%ad%98%e5%9c%a8%e3%81%99%e3%82%8b%e3%81%8b%e7%a2%ba%e8%aa%8d%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.b64.pw\/blog\/?p=20","title":{"rendered":"PHP\u306e\u30af\u30e9\u30b9\u306econst\u30e1\u30f3\u30d0\u304c\u5b58\u5728\u3059\u308b\u304b\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"\n<p>isset()\u3084property_exists()\u3067\u306f\u6b63\u3057\u304f\u691c\u51fa\u3067\u304d\u306a\u3044\u306e\u3067<\/p>\n\n\n\n<p>defined()\u3092\u4f7f\u3046\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>if(!defined('className::CONSTANT_NAME')){\n  \/\/ className::CONSTANT_NAME\u304c\u5b58\u5728\u3057\u306a\u3044\u3068\u304d\u306e\u30a8\u30e9\u30fc\u51e6\u7406\n  return null;\n}\nreturn className::CONSTANT_NAME;<\/code><\/pre>\n\n\n\n<p>\u53c2\u8003<br><a href=\"https:\/\/stackoverflow.com\/questions\/24159178\/check-if-a-class-constant-exists\/50697766\">https:\/\/stackoverflow.com\/questions\/24159178\/check-if-a-class-constant-exists\/50697766<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>isset()\u3084property_exists()\u3067\u306f\u6b63\u3057\u304f &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/20"}],"collection":[{"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20"}],"version-history":[{"count":3,"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/20\/revisions"}],"predecessor-version":[{"id":23,"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/20\/revisions\/23"}],"wp:attachment":[{"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.b64.pw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}