{"id":784,"date":"2025-08-04T16:16:42","date_gmt":"2025-08-04T07:16:42","guid":{"rendered":"https:\/\/nexive.tech\/?p=784"},"modified":"2025-08-04T16:16:43","modified_gmt":"2025-08-04T07:16:43","slug":"%e3%80%90%e3%82%b5%e3%82%af%e3%83%83%e3%81%a8%e8%a7%a3%e8%aa%ac%e3%80%91php-trait%e3%81%ae%e4%bd%bf%e3%81%84%e6%89%80%e3%81%a8%e6%b3%a8%e6%84%8f%e7%82%b9","status":"publish","type":"post","link":"https:\/\/nexive.tech\/?p=784","title":{"rendered":"\u3010\u30b5\u30af\u30c3\u3068\u89e3\u8aac\u3011PHP trait\u306e\u4f7f\u3044\u6240\u3068\u6ce8\u610f\u70b9"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1. \u672c\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PHP\u306etrait\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u8a2d\u8a08\u4e0a\u306e\u610f\u5473\u3092\u89e3\u8aac<\/li>\n\n\n\n<li>\u7d99\u627f\u3068\u306e\u9055\u3044\u3001\u8907\u6570trait\u306e\u4f75\u7528\u3001\u30e1\u30bd\u30c3\u30c9\u7af6\u5408\u6642\u306e\u5bfe\u5fdc\u65b9\u6cd5\u3092\u7d39\u4ecb<\/li>\n\n\n\n<li>\u5b9f\u52d9\u4e0a\u306e\u9069\u5207\u306a\u4f7f\u3044\u6240\u3068\u3001\u907f\u3051\u308b\u3079\u304d\u30b1\u30fc\u30b9\u306b\u3064\u3044\u3066\u660e\u793a<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. PHP\u306etrait\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>PHP\u306e<code>trait<\/code>\u306f\u3001\u30af\u30e9\u30b9\u9593\u3067\u5171\u901a\u306e\u632f\u308b\u821e\u3044\uff08\u30e1\u30bd\u30c3\u30c9\uff09\u3092\u5171\u6709\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002\u901a\u5e38\u306e\u7d99\u627f\u3067\u306f1\u3064\u306e\u89aa\u30af\u30e9\u30b9\u3057\u304b\u6301\u3066\u307e\u305b\u3093\u304c\u3001trait\u3092\u4f7f\u3048\u3070\u591a\u91cd\u7d99\u627f\u306e\u3088\u3046\u306b\u8907\u6570\u306e\u6a5f\u80fd\u3092\u4f7f\u3044\u56de\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>trait\u306f\u3001\u30af\u30e9\u30b9\u306e\u7d99\u627f\u968e\u5c64\u3092\u7121\u99c4\u306b\u8907\u96d1\u5316\u305b\u305a\u3001\u6a2a\u65ad\u7684\u306a\u5171\u901a\u51e6\u7406\uff08\u30ed\u30b0\u8a18\u9332\u3001\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001\u30a2\u30af\u30bb\u30b5\u30e1\u30bd\u30c3\u30c9\u306a\u3069\uff09\u3092\u7c21\u6f54\u306b\u5206\u96e2\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>Laravel\u3084CakePHP\u306a\u3069\u306e\u4e3b\u8981\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3082\u3001trait\u306f\u518d\u5229\u7528\u6027\u3092\u9ad8\u3081\u308b\u624b\u6bb5\u3068\u3057\u3066\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001trait\u306f\u72b6\u614b\uff08\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u3084\u4f9d\u5b58\u95a2\u4fc2\u3092\u6301\u305f\u305b\u308b\u3053\u3068\u3082\u53ef\u80fd\u306a\u305f\u3081\u3001\u69cb\u9020\u306e\u898b\u901a\u3057\u3092\u60aa\u304f\u3057\u306a\u3044\u3088\u3046\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u8a73\u7d30\u89e3\u8aac<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5358\u4e00\u306etrait\u3092\u4f7f\u3063\u3066\u5171\u901a\u30e1\u30bd\u30c3\u30c9\u3092\u5171\u6709\u3059\u308b<\/h3>\n\n\n\n<p>\u30ed\u30b0\u8a18\u9332\u306a\u3069\u306e\u6c4e\u7528\u51e6\u7406\u3092\u5404\u30af\u30e9\u30b9\u306b\u7c21\u6613\u5c0e\u5165\u3057\u305f\u3044\u5834\u9762\u3067\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#1e1e1e\"><span style=\"background:#c7c7c7;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#1e1e1e\">PHP<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>trait Logger {\n    public function log($message) {\n        echo \"&#91;LOG&#93; $message\\n\";\n    }\n}\n\nclass UserService {\n    use Logger;\n}\n\n$service = new UserService();\n$service->log(\"\u30e6\u30fc\u30b6\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\");\n\/\/ \u51fa\u529b: &#91;LOG&#93; \u30e6\u30fc\u30b6\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\n<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">trait<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">Logger<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">public<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">function<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">log<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">$message<\/span><span style=\"color: #D4D4D4\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #DCDCAA\">echo<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #CE9178\">&quot;&#91;LOG&#93; <\/span><span style=\"color: #9CDCFE\">$message<\/span><span style=\"color: #D7BA7D\">\\n<\/span><span style=\"color: #CE9178\">&quot;<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">class<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">UserService<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">use<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">Logger<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #9CDCFE\">$service<\/span><span style=\"color: #D4D4D4\"> = <\/span><span style=\"color: #569CD6\">new<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">UserService<\/span><span style=\"color: #D4D4D4\">();<\/span><\/span>\n<span class=\"line\"><span style=\"color: #9CDCFE\">$service<\/span><span style=\"color: #D4D4D4\">-&gt;<\/span><span style=\"color: #DCDCAA\">log<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #CE9178\">&quot;\u30e6\u30fc\u30b6\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f&quot;<\/span><span style=\"color: #D4D4D4\">);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">\/\/ \u51fa\u529b: &#91;LOG&#93; \u30e6\u30fc\u30b6\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f<\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u8907\u6570\u306etrait\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046<\/h3>\n\n\n\n<p>\u6a5f\u80fd\u3092\u7d30\u304b\u304f\u5206\u96e2\u3057\u3066\u7ba1\u7406\u3057\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#1e1e1e\"><span style=\"background:#c7c7c7;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#1e1e1e\">PHP<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>trait Logger {\n    public function log($msg) {\n        echo \"&#91;LOG&#93; $msg\\n\";\n    }\n}\n\ntrait Validator {\n    public function validate($data) {\n        return !empty($data);\n    }\n}\n\nclass ProductService {\n    use Logger, Validator;\n}\n\n$svc = new ProductService();\n$svc->log(\"\u5546\u54c1\u3092\u767b\u9332\u4e2d\");\nvar_dump($svc->validate(\"item\"));\n\/\/ \u51fa\u529b: &#91;LOG&#93; \u5546\u54c1\u3092\u767b\u9332\u4e2d\n\/\/ \u51fa\u529b: bool(true)\n<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">trait<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">Logger<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">public<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">function<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">log<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">$msg<\/span><span style=\"color: #D4D4D4\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #DCDCAA\">echo<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #CE9178\">&quot;&#91;LOG&#93; <\/span><span style=\"color: #9CDCFE\">$msg<\/span><span style=\"color: #D7BA7D\">\\n<\/span><span style=\"color: #CE9178\">&quot;<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">trait<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">Validator<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">public<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">function<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">validate<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">$data<\/span><span style=\"color: #D4D4D4\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #C586C0\">return<\/span><span style=\"color: #D4D4D4\"> !<\/span><span style=\"color: #DCDCAA\">empty<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">$data<\/span><span style=\"color: #D4D4D4\">);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">class<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">ProductService<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">use<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">Logger<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #4EC9B0\">Validator<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #9CDCFE\">$svc<\/span><span style=\"color: #D4D4D4\"> = <\/span><span style=\"color: #569CD6\">new<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">ProductService<\/span><span style=\"color: #D4D4D4\">();<\/span><\/span>\n<span class=\"line\"><span style=\"color: #9CDCFE\">$svc<\/span><span style=\"color: #D4D4D4\">-&gt;<\/span><span style=\"color: #DCDCAA\">log<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #CE9178\">&quot;\u5546\u54c1\u3092\u767b\u9332\u4e2d&quot;<\/span><span style=\"color: #D4D4D4\">);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #DCDCAA\">var_dump<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">$svc<\/span><span style=\"color: #D4D4D4\">-&gt;<\/span><span style=\"color: #DCDCAA\">validate<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #CE9178\">&quot;item&quot;<\/span><span style=\"color: #D4D4D4\">));<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">\/\/ \u51fa\u529b: &#91;LOG&#93; \u5546\u54c1\u3092\u767b\u9332\u4e2d<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">\/\/ \u51fa\u529b: bool(true)<\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u540c\u540d\u30e1\u30bd\u30c3\u30c9\u306e\u7af6\u5408\u3092\u89e3\u6c7a\u3059\u308b<\/h3>\n\n\n\n<p>\u8907\u6570trait\u3067\u540c\u540d\u30e1\u30bd\u30c3\u30c9\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u660e\u793a\u7684\u306b\u512a\u5148\u9806\u4f4d\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#1e1e1e\"><span style=\"background:#c7c7c7;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#1e1e1e\">PHP<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>trait A {\n    public function hello() {\n        echo \"Hello from A\\n\";\n    }\n}\n\ntrait B {\n    public function hello() {\n        echo \"Hello from B\\n\";\n    }\n}\n\nclass MyClass {\n    use A, B {\n        B::hello insteadof A;\n        A::hello as helloFromA;\n    }\n}\n\n$obj = new MyClass();\n$obj->hello();         \/\/ \u51fa\u529b: Hello from B\n$obj->helloFromA();    \/\/ \u51fa\u529b: Hello from A\n<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">trait<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">A<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">public<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">function<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">hello<\/span><span style=\"color: #D4D4D4\">() {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #DCDCAA\">echo<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #CE9178\">&quot;Hello from A<\/span><span style=\"color: #D7BA7D\">\\n<\/span><span style=\"color: #CE9178\">&quot;<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">trait<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">B<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">public<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">function<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">hello<\/span><span style=\"color: #D4D4D4\">() {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #DCDCAA\">echo<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #CE9178\">&quot;Hello from B<\/span><span style=\"color: #D7BA7D\">\\n<\/span><span style=\"color: #CE9178\">&quot;<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">class<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">MyClass<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">use<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">A<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #4EC9B0\">B<\/span><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #4EC9B0\">B<\/span><span style=\"color: #D4D4D4\">::hello <\/span><span style=\"color: #569CD6\">insteadof<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">A<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #4EC9B0\">A<\/span><span style=\"color: #D4D4D4\">::hello <\/span><span style=\"color: #569CD6\">as<\/span><span style=\"color: #D4D4D4\"> helloFromA;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #9CDCFE\">$obj<\/span><span style=\"color: #D4D4D4\"> = <\/span><span style=\"color: #569CD6\">new<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">MyClass<\/span><span style=\"color: #D4D4D4\">();<\/span><\/span>\n<span class=\"line\"><span style=\"color: #9CDCFE\">$obj<\/span><span style=\"color: #D4D4D4\">-&gt;<\/span><span style=\"color: #DCDCAA\">hello<\/span><span style=\"color: #D4D4D4\">();         <\/span><span style=\"color: #6A9955\">\/\/ \u51fa\u529b: Hello from B<\/span><\/span>\n<span class=\"line\"><span style=\"color: #9CDCFE\">$obj<\/span><span style=\"color: #D4D4D4\">-&gt;<\/span><span style=\"color: #DCDCAA\">helloFromA<\/span><span style=\"color: #D4D4D4\">();    <\/span><span style=\"color: #6A9955\">\/\/ \u51fa\u529b: Hello from A<\/span><\/span>\n<span class=\"line\"><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u7d99\u627f\u3068\u306e\u9055\u3044\u3068\u9078\u5b9a\u57fa\u6e96<\/h3>\n\n\n\n<p>trait\u306f\u30af\u30e9\u30b9\u9593\u306e&#8221;\u90e8\u5206\u7684\u306a\u6a5f\u80fd\u5171\u6709&#8221;\u306b\u5411\u3044\u3066\u304a\u308a\u3001\u89aa\u5b50\u95a2\u4fc2\u3084\u578b\u306e\u4e00\u8cab\u6027\u306f\u63d0\u4f9b\u3057\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001&#8221;is-a&#8221;\u95a2\u4fc2\u304c\u660e\u78ba\u306a\u5834\u5408\u306f\u7d99\u627f\u3001&#8221;can-do&#8221;\u306e\u3088\u3046\u306a\u5171\u901a\u51e6\u7406\u306b\u306ftrait\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001trait\u306f\u540d\u524d\u7a7a\u9593\u3092\u6301\u305f\u306a\u3044\u305f\u3081\u3001\u30af\u30e9\u30b9\u5185\u3067\u306e\u7c92\u5ea6\u306e\u660e\u793a\u3084\u3001IDE\u306b\u3088\u308b\u88dc\u5b8c\u306b\u3082\u3084\u3084\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u3088\u304f\u3042\u308b\u30df\u30b9\u30fb\u8aa4\u89e3\u30fb\u843d\u3068\u3057\u7a74<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30d7\u30ed\u30d1\u30c6\u30a3\u540d\u306e\u91cd\u8907<\/strong>: \u8907\u6570\u306etrait\u306b\u540c\u540d\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u3042\u308b\u3068\u3001\u610f\u56f3\u305b\u305a\u4e0a\u66f8\u304d\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff08\u660e\u793a\u7684\u306a\u7af6\u5408\u89e3\u6c7a\u306f\u4e0d\u53ef\uff09\u3002<\/li>\n\n\n\n<li><strong>\u72b6\u614b\u3092\u6301\u3064trait\u306e\u4e71\u7528<\/strong>: trait\u5185\u306b\u72b6\u614b\uff08\u30d7\u30ed\u30d1\u30c6\u30a3\u3084\u5916\u90e8\u4f9d\u5b58\uff09\u3092\u6301\u305f\u305b\u3059\u304e\u308b\u3068\u3001\u518d\u5229\u7528\u6027\u304c\u4e0b\u304c\u308a\u3001\u4fdd\u5b88\u304c\u56f0\u96e3\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30af\u30e9\u30b9\u306e\u8cac\u52d9\u304c\u4e0d\u660e\u78ba\u306b\u306a\u308b<\/strong>: trait\u306e\u6feb\u7528\u3067\u30e1\u30bd\u30c3\u30c9\u304c\u6563\u5728\u3059\u308b\u3068\u3001\u30af\u30e9\u30b9\u672c\u6765\u306e\u76ee\u7684\u304c\u898b\u3048\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u81ea\u52d5\u88dc\u5b8c\u3084\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306e\u56f0\u96e3<\/strong>: IDE\u306b\u3088\u3063\u3066\u306ftrait\u7531\u6765\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u8ffd\u8de1\u3057\u3065\u3089\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u307e\u3068\u3081<\/h2>\n\n\n\n<p>PHP\u306etrait\u306f\u3001\u5171\u901a\u51e6\u7406\u3092\u30af\u30e9\u30b9\u9593\u3067\u52b9\u7387\u3088\u304f\u5171\u6709\u3059\u308b\u305f\u3081\u306e\u4fbf\u5229\u306a\u6a5f\u80fd\u3067\u3059\u3002\u7279\u306b\u7d99\u627f\u3092\u4f7f\u308f\u305a\u306b\u6a5f\u80fd\u3092\u6a2a\u65ad\u7684\u306b\u5c0e\u5165\u3057\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u7af6\u5408\u3084\u8cac\u52d9\u306e\u5206\u6563\u3001IDE\u30b5\u30dd\u30fc\u30c8\u306a\u3069\u306b\u6ce8\u610f\u3057\u3001\u7c92\u5ea6\u3068\u8cac\u52d9\u3092\u610f\u8b58\u3057\u305f\u8a2d\u8a08\u304c\u91cd\u8981\u3067\u3059\u3002\u4f7f\u7528\u5834\u9762\u3092\u9078\u3079\u3070\u3001\u4fdd\u5b88\u6027\u3068\u518d\u5229\u7528\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u672c\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8 2. PHP\u306etrait\u3068\u306f\uff1f PHP\u306etrait\u306f\u3001\u30af\u30e9\u30b9\u9593\u3067\u5171\u901a\u306e\u632f\u308b\u821e\u3044\uff08\u30e1\u30bd\u30c3\u30c9\uff09\u3092\u5171\u6709\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002\u901a\u5e38\u306e\u7d99\u627f\u3067\u306f1\u3064\u306e\u89aa\u30af\u30e9\u30b9\u3057\u304b\u6301\u3066\u307e\u305b\u3093\u304c\u3001trait\u3092\u4f7f\u3048\u3070\u591a\u91cd\u7d99\u627f\u306e\u3088\u3046 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":704,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[85],"tags":[],"class_list":["post-784","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/nexive.tech\/index.php?rest_route=\/wp\/v2\/posts\/784","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nexive.tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nexive.tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nexive.tech\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nexive.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=784"}],"version-history":[{"count":2,"href":"https:\/\/nexive.tech\/index.php?rest_route=\/wp\/v2\/posts\/784\/revisions"}],"predecessor-version":[{"id":876,"href":"https:\/\/nexive.tech\/index.php?rest_route=\/wp\/v2\/posts\/784\/revisions\/876"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nexive.tech\/index.php?rest_route=\/wp\/v2\/media\/704"}],"wp:attachment":[{"href":"https:\/\/nexive.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nexive.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nexive.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}