{"id":25620,"date":"2017-06-22T15:52:11","date_gmt":"2017-06-22T06:52:11","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=25620"},"modified":"2024-05-06T11:43:26","modified_gmt":"2024-05-06T02:43:26","slug":"%e3%80%90php%e5%85%a5%e9%96%80%e3%80%91class%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e7%b7%8f%e3%81%be%e3%81%a8%e3%82%81","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/25620","title":{"rendered":"PHP\u3067\u30af\u30e9\u30b9\u3092\u4f7f\u3044\u3053\u306a\u3059\u306b\u306f\uff1f\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u89e3\u8aac"},"content":{"rendered":"\n<p><div class=\"box_voice\">PHP\u3067\u30af\u30e9\u30b9\u3092\u4f7f\u3046\u65b9\u6cd5\u304c\u77e5\u308a\u305f\u3044<br>\n\u30af\u30e9\u30b9\u306e\u7d99\u627f\u3084\u62bd\u8c61\u5316\u306e\u610f\u5473\u3084\u4f7f\u3044\u65b9\u304c\u3044\u307e\u3044\u3061\u308f\u304b\u3089\u306a\u3044<br>\nPHP\u306e\u30af\u30e9\u30b9\u3092\u4f7f\u3044\u3053\u306a\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u305f\u3044<\/div><\/p>\n\n\n\n<p>PHP\u306e\u30af\u30e9\u30b9\u306f\u901a\u5e38\u306e\u30af\u30e9\u30b9\u3068\u3057\u3066\u306e\u4f7f\u3044\u65b9\u4ee5\u5916\u306b\u3001\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305f\u308a\u3001\u9759\u7684\u30e1\u30f3\u30d0\u306e\u53c2\u7167\u3001\u30af\u30e9\u30b9\u5185\u3067\u5b9a\u6570\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306a\u3069\u3001\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3055\u307e\u3056\u307e\u306a\u51e6\u7406\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u3067\u304d\u308b\u3053\u3068\u304c\u591a\u3059\u304e\u3066\u3044\u307e\u3044\u3061\u30af\u30e9\u30b9\u306e\u4f7f\u3044\u65b9\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u3001\u4eca\u56de\u306f\u30af\u30e9\u30b9\u3068\u306f\u4f55\u304b\uff1f\u3068\u3044\u3046\u3068\u3053\u308d\u304b\u3089\u3001\u5b9f\u969b\u306e\u30af\u30e9\u30b9\u306e\u4f7f\u3044\u65b9\u3001\u7d99\u627f\u3084\u62bd\u8c61\u5316\u306a\u3069\u3088\u308a\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u306f\u3053\u3093\u306a\u4eba\u306e\u305f\u3081\u306b\u66f8\u304d\u307e\u3057\u305f<\/p>\n\n\n<div class=\"box01\">\n\n\n\n<ul class=\"wp-block-list\"><li><b>\u30af\u30e9\u30b9\u306e\u6982\u8981\u3084\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u77e5\u308a\u305f\u3044\u65b9<\/b><\/li><li><b>\u30af\u30e9\u30b9\u306e\u7d99\u627f\u3084\u62bd\u8c61\u5316\u306b\u3064\u3044\u3066\u77e5\u308a\u305f\u3044\u65b9<\/b><\/li><li><b>\u30af\u30e9\u30b9\u306e\u3055\u307e\u3056\u307e\u306a\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u77e5\u308a\u305f\u3044\u65b9<\/b><\/li><\/ul>\n\n\n<\/div>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3093\u3067\u3001PHP\u306e\u30af\u30e9\u30b9\u3092\u4f7f\u3044\u3053\u306a\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\uff01<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">PHP\u306e\u30af\u30e9\u30b9\u3068\u306f<\/h2>\n\n\n\n<p>\u30af\u30e9\u30b9\u3068\u306f\u7c21\u5358\u306b\u8aac\u660e\u3059\u308b\u3068\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u51e6\u7406\u3092\u307e\u3068\u3081\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u3053\u3068\u3067\u3001\u3042\u3089\u3086\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u30af\u30e9\u30b9\u306f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30af\u30e9\u30b9\u306e\u4e2d\u3067\u306f\u4e3b\u306b\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\uff08\u5909\u6570\u3084\u5b9a\u6570\uff09\u3084\u30e1\u30bd\u30c3\u30c9\uff08\u95a2\u6570\uff09\u306e\u5b9a\u7fa9\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\u306b\u306f\u3001class\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u6307\u5b9a\u3057\u3001\u305d\u306e\u6b21\u306b\u30af\u30e9\u30b9\u540d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30af\u30e9\u30b9\u306e\u66f8\u304d\u65b9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">class \u30af\u30e9\u30b9\u540d\n{\n  \/\/\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5ba3\u8a00\n  public $\u5909\u6570\u540d = \u5024;\n \n  \/\/\u30e1\u30bd\u30c3\u30c9\u306e\u5ba3\u8a00\n  public function \u30e1\u30bd\u30c3\u30c9\u540d(){\n    \u30e1\u30bd\u30c3\u30c9\u5185\u51e6\u7406...\n  }\n}<\/pre>\n\n\n\n<p>\u30af\u30e9\u30b9\u540d\u306b\u306f\u4e88\u7d04\u8a9e\u4ee5\u5916\u306e\u3042\u3089\u3086\u308b\u540d\u524d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30af\u30e9\u30b9\u540d\u306e\u5f8c\u306b\u306f\u6ce2\u62ec\u5f27{}\u306e\u30da\u30a2\u3092\u6307\u5b9a\u3057\u3066\u3001\u305d\u306e\u306a\u304b\u306b\u30af\u30e9\u30b9\u306e\u51e6\u7406\u3092\u8a18\u8ff0\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>PHP\u306a\u3069\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u306f\u3001\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u3001\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">$\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 = new \u30af\u30e9\u30b9\u540d();<\/pre>\n\n\n\n<p>\u751f\u6210\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304b\u3089\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u3092\u53c2\u7167\u3057\u305f\u308a\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u51fa\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PHP\u306e\u30af\u30e9\u30b9\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001\u30af\u30e9\u30b9\u306e\u4f7f\u3044\u65b9\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306bclass\u3092\u4f7f\u7528\u3057\u305f\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n<pre class=\"wp-block-preformatted lang:php decode:true\">&lt;?php\n\nclass SampleClass\n{\n  \/\/\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5ba3\u8a00\n  public $var = 'This is Sample Class.';\n\n}\n\n\/\/\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u751f\u6210\n$sample = new SampleClass();\n\necho $sample-&gt;var;\n\n?&gt;<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">This is Sample Class.<\/pre>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u3001\u30af\u30e9\u30b9SampleClass\u3092\u4f5c\u6210\u3057\u3001\u305d\u306e\u4e2d\u3067\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5ba3\u8a00\u3057\u3066\u5024\u3092\u4ee3\u5165\u3057\u3066\u3044\u307e\u3059\u3002\u5b9f\u969b\u306b\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u306b\u306f\u3001\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u300c$sample = new SampleClass()\u300d\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30af\u30e9\u30b9\u5185\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u53c2\u7167\u3059\u308b\u306b\u306f\u3001\u4f5c\u6210\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5909\u6570\u306b\u77e2\u5370\u6f14\u7b97\u5b50(-&gt;)\u3067\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7d99\u627f(extends)<\/h3>\n\n\n\n<p>\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3084\u30e1\u30f3\u30d0\u3092\u3001\u4ed6\u306e\u30af\u30e9\u30b9\u3067\u7d99\u627f\u3059\u308b\u5834\u5408\u306fextends\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002extends\u3092\u4f7f\u7528\u3057\u3066\u3001\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7d99\u627f\u306e\u66f8\u304d\u65b9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">class \u30af\u30e9\u30b9\u540d extends \u7d99\u627f\u5143\u30af\u30e9\u30b9\u540d{\n  \u51e6\u7406\u2026\n}<\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u306bextends\u3092\u6307\u5b9a\u3057\u3066\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3059\u308b\u65b9\u6cd5\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n<pre class=\"wp-block-preformatted lang:php decode:true\">&lt;?php\n\n\/\/\u89aa\u30af\u30e9\u30b9\nclass ParentClass{\n\n  public function WorkItem1($str){\n    echo $str.'ParentClass &lt;br&gt;';\n  }\n\n  public function WorkItem2(){\n    echo 'Processing of WorkItem2 of ParentClass. &lt;br&gt;';\n  }\n\n}\n\n\/\/\u5b50\u30af\u30e9\u30b9\nclass ChildClass extends ParentClass{\n\n  public function WorkItem1($str){\n    echo $str.'ChildClass &lt;br&gt;';\n  }\n\n}\n\n\/\/\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\n$parent = new ParentClass();\n$child = new ChildClass();\n\n\/\/\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u51fa\u3057\n$parent-&gt;WorkItem1('Processing of ');\n$child-&gt;WorkItem1('Processing of ');\n\n$parent-&gt;WorkItem2();\n$child-&gt;WorkItem2();\n\n?&gt;<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">Processing of ParentClass \nProcessing of ChildClass \nProcessing of WorkItem2 of ParentClass. \nProcessing of WorkItem2 of ParentClass. \n<\/pre>\n\n\n\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u89aa\u30af\u30e9\u30b9\u3067\u3042\u308bParentClass\u3068\u3001\u5b50\u30af\u30e9\u30b9\u3067\u3042\u308bChildClass\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>ChildClass\u3067\u306fextends\u3092\u6307\u5b9a\u3057\u3066\u3001\u89aa\u30af\u30e9\u30b9\u306eParentClass\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u3066\u3044\u307e\u3059\u3002\u30af\u30e9\u30b9\u306e\u7d99\u627f\u3092\u6307\u5b9a\u3059\u308c\u3070\u3001\u5b50\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304b\u3089\u89aa\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u306d\uff01<br>\n<\/p>\n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/23789\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/09\/image27-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010PHP\u5165\u9580\u3011\u7d99\u627f(extends)\u3001\u30c8\u30ec\u30a4\u30c8(trait)\u3092\u4f7f\u3044\u3053\u306a\u305d\u3046\uff01<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n\n<h3 class=\"wp-block-heading\">\u62bd\u8c61\u5316(abstract)<\/h3>\n\n\n\n<p>\u62bd\u8c61\u30af\u30e9\u30b9\u3068\u306f\u4ed6\u306e\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u3066\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u30af\u30e9\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30af\u30e9\u30b9\u3092\u62bd\u8c61\u5316\u3059\u308b\u3068\u3001\u305d\u306e\u30af\u30e9\u30b9\u306f\u76f4\u63a5\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u62bd\u8c61\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u306fabstract\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u62bd\u8c61\u30af\u30e9\u30b9\u306e\u5b9a\u7fa9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">abstract \u62bd\u8c61\u30af\u30e9\u30b9\u540d{\n}<\/pre>\n\n\n\n<p>\u62bd\u8c61\u30af\u30e9\u30b9\u306b\u306f\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u306f\u76f4\u63a5\u51e6\u7406\u3092\u6301\u305f\u306a\u3044\u540d\u524d\u3060\u3051\u5b9a\u7fa9\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3059\u308b\u306b\u306f\u62bd\u8c61\u30af\u30e9\u30b9\u3068\u540c\u3058\u304fabstract\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u306e\u5b9a\u7fa9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">abstract \u62bd\u8c61\u30af\u30e9\u30b9\u540d{\n    abstract public function \u30e1\u30bd\u30c3\u30c9\u540d();\n}<\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u306b\u62bd\u8c61\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n<pre class=\"wp-block-preformatted lang:php decode:true\">\/\/\u62bd\u8c61\u30af\u30e9\u30b9\nabstract class AbstractClass\n{\n    \/\/ \u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u306e\u5b9a\u7fa9\n    abstract protected function getValue();\n    abstract protected function getText($str);\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u306e\u5b9a\u7fa9\n    public function thisClass() {\n        echo $this-&gt;getValue() . '&lt;br&gt;';\n    }\n}\n\nclass SampleClass1 extends AbstractClass\n{\n    protected function getValue() {\n        return \"SampleClass1\";\n    }\n\n    public function getText($str) {\n        return \"{$str}SampleClass1\";\n    }\n}\n\nclass SampleClass2 extends AbstractClass\n{\n    public function getValue() {\n        return \"SampleClass2\";\n    }\n\n    public function getText($str) {\n        return \"{$str}SampleClass2\";\n    }\n}\n\n$class1 = new SampleClass1;\n$class1-&gt;thisClass();\necho $class1-&gt;getText('Samurai_') .'&lt;br&gt;';\n\n$class2 = new SampleClass2;\n$class2-&gt;thisClass();\necho $class2-&gt;getText('Engineer_') .'&lt;br&gt;';<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">SampleClass1\nSamurai_SampleClass1\nSampleClass2\nEngineer_SampleClass2<\/pre>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u901a\u5e38\u306e\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304b\u3089\u62bd\u8c61\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u51fa\u3057\u3066\u3044\u307e\u3059\u3002\u62bd<b>\u8c61\u30af\u30e9\u30b9\u3067\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u7d99\u627f\u5148\u306e\u30af\u30e9\u30b9\u3067\u5fc5\u305a\u518d\u5b9a\u7fa9\uff08\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\uff09\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<\/b>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf(__construct)<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3068\u306f\u30af\u30e9\u30b9\u304b\u3089\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u3068\u304d\u306b\u3001\u6700\u521d\u306b\u547c\u3073\u51fa\u3055\u308c\u308b\u95a2\u6570\u306e\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f__construct()\u3067\u5b9a\u7fa9\u3057\u3001new\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u3068\u5fc5\u305a\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5b9a\u7fa9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">class \u30af\u30e9\u30b9\u540d{\n    function __construct(){\n        \u2026\u51e6\u7406\u2026\n    }\n}<\/pre>\n\n\n\n<p>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u5ea6\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u306e\u3067\u3001\u5909\u6570\u306a\u3069\u3092\u521d\u671f\u5316\u3059\u308b\u51e6\u7406\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u4f7f\u7528\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n<pre class=\"wp-block-preformatted lang:php decode:true\">class SampleClass\n{\n  protected $text;\n\n  \/\/\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5b9a\u7fa9\n  function __construct()    {\n    $this-&gt;text = 'Samurai Engineer';\n  }\n\n  \/\/\u30e1\u30bd\u30c3\u30c9\u306e\u5b9a\u7fa9\n  function show() {\n    echo $this-&gt;text;\n  }\n}\n\n\/\/\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u751f\u6210\n$class = new SampleClass();\n\n\/\/\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u51fa\u3057\n$class-&gt;show();<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">Samurai Engineer<\/pre>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u751f\u6210\u3068\u540c\u6642\u306b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\uff08__construct\uff09\u304c\u547c\u3073\u51fa\u3055\u308c\u3001\u5909\u6570$text\u306e\u521d\u671f\u5316\u51e6\u7406\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u3042\u3068\u306b\u300c$class-&gt;show()\u300d\u3067\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001\u5909\u6570\u3092\u53c2\u7167\u3059\u308b\u3068\u5909\u6570\u306b\u5024\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9759\u7684\u30e1\u30f3\u30d0\u306e\u4f7f\u7528(static)<\/h3>\n\n\n\n<p>\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3084\u30e1\u30bd\u30c3\u30c9\u306a\u3069\u306e\u30e1\u30f3\u30d0\u3092\u53c2\u7167\u3059\u308b\u306b\u306f\u3001new\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3057\u3066\u3001\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u30af\u30e9\u30b9\u5185\u3067static\u3092\u6307\u5b9a\u3059\u308c\u3070\u3001\u305d\u306e\u30af\u30e9\u30b9\u306e\u30e1\u30f3\u30d0\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u306a\u304f\u3066\u3082\u3001\u53c2\u7167\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>static\u306a\u5909\u6570\u3092\u6307\u5b9a\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u9759\u7684\u30e1\u30f3\u30d0\u306e\u5b9a\u7fa9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">\u30af\u30e9\u30b9\u540d{\n  static $\u5909\u6570\u540d = \u5024;\n  \/\/\u51e6\u7406\n}<\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u306bstatic\u306a\u5909\u6570\u3092\u5b9a\u7fa9\u3057\u3066\u3001\u30af\u30e9\u30b9\u5916\u304b\u3089\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u306a\u3044\u3067\u30a2\u30af\u30bb\u30b9\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n<pre class=\"wp-block-preformatted lang:php decode:true\">&lt;?php\n \nclass Foo {\n \n  \/\/\u9759\u7684\u5909\u6570\u3092\u4f5c\u6210\u3059\u308b\n  public static $val = 10;\n}\n \n\/\/\u9759\u7684\u5909\u6570\u3092\u53c2\u7167\u3059\u308b\n$value = Foo::$val;\necho $value;\n \n?&gt;<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">10<\/pre>\n\n\n\n<p>static\u3092\u6307\u5b9a\u3057\u3066\u9759\u7684\u30e1\u30f3\u30d0\u3092\u53c2\u7167\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\uff01<br>\n<\/p>\n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/23753\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/05\/image-118-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010PHP\u5165\u9580\u3011\u30af\u30e9\u30b9\u5909\u6570\u30fb\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5(static)<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n\n<h3 class=\"wp-block-heading\">\u5b9a\u6570\u306e\u4f7f\u7528(const)<\/h3>\n\n\n\n<p>\u30af\u30e9\u30b9\u5185\u3067\u5b9a\u6570\u3092\u6307\u5b9a\u3059\u308b\u306b\u306f\u3001const\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002const\u3092\u6307\u5b9a\u3057\u305f\u5b9a\u6570\u3092\u30af\u30e9\u30b9\u5185\u90e8\u3067\u5b9a\u7fa9\u3059\u308b\u3068\u304d\u306b\u306fconst\u306e\u5f8c\u306b\u5b9a\u6570\u540d\u3068\u5024\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5b9a\u6570\u306e\u5b9a\u7fa9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">class \u30af\u30e9\u30b9\u540d{\n \n  const \u5b9a\u6570\u540d = \u5024;\n \n}<\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u306bconst\u3092\u4f7f\u7528\u3057\u3066\u5b9a\u6570\u3092\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n<pre class=\"wp-block-preformatted lang:php decode:true\">&lt;?php\n\nclass ConstClass\n{\n  \/\/\u5b9a\u6570\u3092\u5b9a\u7fa9\u3059\u308b\n  const CONSTNUM1 = 100;\n  const CONSTNUM2 = 200;\n\n  function showConst(){\n    echo self::CONSTNUM1.'&lt;br&gt;';\n    echo self::CONSTNUM2;\n  }\n}\n\n$Class = new ConstClass();\n$Class-&gt;showConst();\n\n?&gt;<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">100\n200<\/pre>\n\n\n\n<p>\u5b9a\u6570\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\uff01<br>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/27679\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/image-112-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010PHP\u5165\u9580\u3011const\u3067\u5b9a\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u65b9\u6cd5<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <br>\n<\/p>\n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/23526\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/05\/image1-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010PHP\u5165\u9580\u3011define\u3067\u5b9a\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u65b9\u6cd5<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\u5916\u306e\u6307\u5b9a(exception)<\/h3>\n\n\n\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u4e2d\u306b\u767a\u751f\u3059\u308b\u4f8b\u5916\u3092\u6271\u3046\u306b\u306f\u3001try~catch\u6587\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u5916\u306f\u72ec\u81ea\u306e\u4f8b\u5916\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u4f7f\u7528\u3059\u308b\u306b\u306f\u3001Exception\u30af\u30e9\u30b9\u3092\u62e1\u5f35\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u5916\u51e6\u7406\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">try {\n    \/\/ \u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30b3\u30fc\u30c9\n} catch (Exception $e) {\n    \/\/ \u4f8b\u5916\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306b\u884c\u3046\u51e6\u7406\n}\n<\/pre>\n\n\n\n<p>\u305d\u3093\u306a\u4f8b\u5916\u30af\u30e9\u30b9\u306e\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\uff01<br>\n<\/p>\n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/24907\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/06\/Exception-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010PHP\u5165\u9580\u3011Exception\u30af\u30e9\u30b9\u5fb9\u5e95\u89e3\u8aac!\u4f8b\u5916\u3092throw\u3057\u3066try~catch\u3059\u308b<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n\n<h3 class=\"wp-block-heading\">\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u53d6\u5f97(get_class_vars)<\/h3>\n\n\n\n<p>\u30af\u30e9\u30b9\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u3092\u53d6\u5f97\u3059\u308b\u306b\u306fget_class_vars\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>get_class_vars\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u66f8\u304d\u65b9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">array get_class_vars ( string $\u30af\u30e9\u30b9\u540d )<\/pre>\n\n\n\n<p>\u8fd4\u308a\u5024\uff1a<br>\n\u73fe\u5728\u306e\u30b9\u30b3\u30fc\u30d7\u304b\u3089\u53c2\u7167\u3067\u304d\u308b\u5909\u6570\u3084\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u9023\u60f3\u914d\u5217\u3067\u8fd4\u3057\u307e\u3059\u3002\u914d\u5217\u8981\u7d20\u306f\u300c\u5909\u6570\u540d=&gt;\u5024\u300d\u3068\u306a\u308a\u307e\u3059\u3002\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306fFALSE\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0<br>\n\u4ee5\u4e0b\u306bget_class_vars\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u53d6\u5f97\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted lang:php decode:true\">&lt;?php\n\nclass sampleclass {\n\n    var $item1;\n    var $item2 = \"ABCD\";\n    var $item3 = 100;\n    public $item4 = 1000;\n    private $item5 = 2000;\n\n    \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n    function __construct() {\n        \/\/\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u8a2d\u5b9a\u3059\u308b\n        $this-&gt;item1 = \"EFGH\";\n        $this-&gt;item2 = \"300\";\n        return true;\n    }\n}\n\n$sample_class = new sampleclass();\n\n$class_array = get_class_vars(get_class($sample_class));\n\nprint_r($class_array);\n\n?&gt;<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">Array\n(\n    [item1] =&gt; \n    [item2] =&gt; ABCD\n    [item3] =&gt; 100\n    [item4] =&gt; 1000\n)<\/pre>\n\n\n\n<p>\u5148\u8ff0\u3057\u305f\u3088\u3046\u306bget_class_vars\u95a2\u6570\u306f\u3001\u5b9f\u884c\u6642\u306e\u30b9\u30b3\u30fc\u30d7\u304b\u3089\u53c2\u7167\u3067\u304d\u308b\u7bc4\u56f2\u306e\u5024\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u3092\u5909\u66f4\u3057\u3066\u3082get_class_vars\u3067\u306f\u53c2\u7167\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30af\u30e9\u30b9\u304c\u5b9a\u7fa9\u6e08\u307f\u304b\u78ba\u8a8d\u3059\u308b(class_exists)<\/h3>\n\n\n\n<p>\u30af\u30e9\u30b9\u304c\u5b9a\u7fa9\u6e08\u307f\u304b\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306fclass_exists\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u66f8\u304d\u65b9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">bool class_exists ( string $\u30af\u30e9\u30b9\u540d [, bool $autoload = true ] )<\/pre>\n\n\n\n<p>\u5f15\u6570\uff1a<br>\n\u7b2c\u4e00\u5f15\u6570\u306b\u306f\u30af\u30e9\u30b9\u540d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u30af\u30e9\u30b9\u540d\u306f\u5927\u6587\u5b57\u3068\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u307e\u305b\u3093\u3002<br>\n\u7b2c\u4e8c\u5f15\u6570\u306bTRUE\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u30af\u30e9\u30b9\u306e\u30aa\u30fc\u30c8\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30aa\u30fc\u30c8\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u306e\u30b5\u30a4\u30c8\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<br>\n<a href=\"http:\/\/php.net\/manual\/ja\/language.oop5.autoload.php\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/php.net\/manual\/ja\/language.oop5.autoload.php<\/a><\/p>\n\n\n\n<p>\u8fd4\u308a\u5024\uff1a<br>\n\u6307\u5b9a\u3057\u305f\u30af\u30e9\u30b9\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306fTRUE\u3001\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306fFALSE\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted lang:php decode:true\">class SampleClass1{\n\n  function __construct()    {\n    echo 'SampleClass1&lt;br&gt;';\n  }\n}\n\nif (class_exists('SampleClass1')) {\n    $class = new SampleClass1();\n}\n\nif (class_exists('SampleClass2')) {\n    $class = new SampleClass2();\n}else{\n  echo 'SampleClass2\u306f\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u305b\u3093';\n}<\/pre>\n\n\n\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">SampleClass1\nSampleClass2\u306f\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u305b\u3093<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001PHP\u3067\u4f7f\u7528\u3059\u308b\u30af\u30e9\u30b9(class)\u306b\u3064\u3044\u3066\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<br>\n<\/p>\n\n\n<div class=\"box01\">\n\n\n\n<ul class=\"wp-block-list\"><li><b>\u30af\u30e9\u30b9\u3068\u306f<\/b><\/li><li><b>\u30af\u30e9\u30b9\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/b><\/li><li><b>\u30af\u30e9\u30b9\u306e\u7d99\u627f(extends)<\/b><\/li><li><b>\u30af\u30e9\u30b9\u306e\u62bd\u8c61\u5316(abstract)<\/b><\/li><li><b>\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf(__construct)<\/b><\/li><li><b>\u30af\u30e9\u30b9\u3067\u9759\u7684\u30e1\u30f3\u30d0\u3092\u4f7f\u7528\u3059\u308b(static)<\/b><\/li><li><b>\u30af\u30e9\u30b9\u5185\u3067\u5b9a\u6570\u3092\u4f7f\u7528\u3059\u308b(const)<\/b><\/li><li><b>\u4f8b\u5916\u3092\u6307\u5b9a\u3059\u308b(exception)<\/b><\/li><li><b>\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u53d6\u5f97\u3059\u308b(get_class_vars)<\/b><\/li><li><b>\u30af\u30e9\u30b9\u304c\u5b9a\u7fa9\u6e08\u307f\u304b\u78ba\u8a8d\u3059\u308b(class_exists)<\/b><\/li><\/ul>\n\n\n\n<p><\/div><br>\n\u30af\u30e9\u30b9\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u6271\u3046\u4e0a\u3067\u3001\u57fa\u672c\u7684\u306a\u51e6\u7406\u3068\u306a\u308a\u307e\u3059\u306e\u3067\u4f7f\u3044\u65b9\u306f\u3057\u3063\u304b\u308a\u3068\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002\u3082\u3057\u3001\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u3092\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\u3089\u3001\u3053\u306e\u8a18\u4e8b\u3092\u601d\u3044\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u3067\u30af\u30e9\u30b9\u3092\u4f7f\u3046\u65b9\u6cd5\u304c\u77e5\u308a\u305f\u3044 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