{"id":84,"date":"2021-12-14T22:08:54","date_gmt":"2021-12-14T13:08:54","guid":{"rendered":"https:\/\/www.b64.pw\/blog\/?p=84"},"modified":"2021-12-14T22:08:54","modified_gmt":"2021-12-14T13:08:54","slug":"php8-1%e3%81%ae%e6%96%b0%e6%a9%9f%e8%83%bd%e7%b4%b9%e4%bb%8b-never-return-type","status":"publish","type":"post","link":"https:\/\/www.b64.pw\/blog\/?p=84","title":{"rendered":"PHP8.1\u306e\u65b0\u6a5f\u80fd\u7d39\u4ecb Never return type"},"content":{"rendered":"\n<p>die(),exit(),trigger_error()\u3068\u3044\u3063\u305f\u51e6\u7406\u304c\u6253\u3061\u5207\u3089\u308c\u3066\u3001\u5024\u3082\u8fd4\u3055\u306a\u3044\u95a2\u6570\/\u30e1\u30bd\u30c3\u30c9\u3067\u5ba3\u8a00\u3067\u304d\u308b\u578b\u3002<\/p>\n\n\n\n<p>\u500b\u4eba\u7684\u306b\u306f\u3042\u3093\u307e\u308a\u4f7f\u308f\u306a\u305d\u3046\u306a\u4e88\u611f\u3002<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3053\u3093\u306a\u611f\u3058\u306a\u306e\u3060\u3051\u308c\u3069\u3082<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function never_test():never{\n  echo 'end code.'.PHP_EOL;\n  exit();\n}<\/code><\/pre>\n\n\n\n<p>\u3053\u308c\u304c\u5024\u3092\u8fd4\u3057\u305f\u308aexit()\u3057\u306a\u3044\u6319\u52d5(\u51e6\u7406\u81ea\u4f53\u306f\u66f8\u3051\u3066\u3057\u307e\u3046)\u3092\u3057\u305f\u3068\u304d\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048\u3070\u3053\u306e\u95a2\u6570\u3060\u3068false\u3092\u5f15\u6570\u306b\u4e0e\u3048\u3066exit()\u3057\u306a\u3044\u3068\u304d\u306b\u5b9f\u884c\u6642\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002<br>\u9006\u306b\u8a00\u3048\u3070true\u3092\u6e21\u3057\u3066\u3044\u308b\u9650\u308a\u306f\u30a8\u30e9\u30fc\u306b\u306a\u3089\u306a\u3044\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function never_test(bool $flag):never{\r\n    if($flag){\r\n        echo 'end code.'.PHP_EOL;\r\n        exit();\r\n    }\r\n    echo 'continue code.'.PHP_EOL;\r\n}\r\n\r\n\/\/ never_test(false);\/\/ Fatal error: Uncaught TypeError: never_test(): never-returning function must not implicitly return\r\nnever_test(true);<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>die(),exit(),trigger_error()\u3068\u3044 &#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":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/84"}],"collection":[{"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=84"}],"version-history":[{"count":3,"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/84\/revisions"}],"predecessor-version":[{"id":88,"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/84\/revisions\/88"}],"wp:attachment":[{"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=84"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=84"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.b64.pw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=84"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}