{"id":124,"date":"2017-05-25T11:47:52","date_gmt":"2017-05-25T04:47:52","guid":{"rendered":"https:\/\/dangnhsite.wordpress.com\/?p=124"},"modified":"2018-01-02T05:04:49","modified_gmt":"2018-01-02T05:04:49","slug":"stdclass-la-gi-lam-the-nao-de-co-properties-dong-trong-php","status":"publish","type":"post","link":"https:\/\/dangnh.cf\/vi\/2017\/05\/25\/stdclass-la-gi-lam-the-nao-de-co-properties-dong-trong-php\/","title":{"rendered":"stdClass l\u00e0 g\u00ec? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u00f3 Dynamic Properties trong PHP?"},"content":{"rendered":"<p>Ch\u00e0o c\u00e1c b\u1ea1n, m\u00ecnh l\u00e0 \u0110\u0103ng, v\u00e0 m\u00ecnh \u0111\u00e3 tr\u1edf l\u1ea1i r\u1ed3i \u0111\u00e2yy\u00a0<img decoding=\"async\" class=\"emoji\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/2.2.1\/svg\/1f642.svg\" alt=\"\ud83d\ude42\" \/><\/p>\n<p>N\u1ebfu b\u1ea1n l\u00e0 1 ng\u01b0\u1eddi r\u1ea5t hay t\u00f2 m\u00f2 ngh\u1ecbch ng\u1ee3m, gi\u1ed1ng t\u00f4i, th\u00ec ch\u1eafc h\u1eb3n b\u1ea1n \u0111\u00e3 t\u1eebng lang thang trong core c\u1ee7a m\u1ea5y th\u1eb1ng PHP framework nh\u01b0 Laravel hay Yii, v\u00e0 ch\u1eafc cmn c\u00fa l\u00e0 c\u00e1c b\u1ea1n c\u0169ng \u0111\u00e3 th\u1ea5y t\u1eeb kh\u00f3a\u00a0<strong>stdClass\u00a0<\/strong>quanh qu\u1ea9n trong \u0111\u00f3 v\u00e0i l\u1ea7n r\u1ed3i. Okay v\u1eady b\u00e2y gi\u1edd ch\u00fang ta c\u00f9ng x\u1eafn tay \u00e1o l\u00ean \u0111\u1ec3 t\u00ecm hi\u1ec3u xem n\u00f3 l\u00e0 c\u00e1i qu\u00e1i g\u00ec m\u00e0 b\u1ecdn dev kh\u1ee7ng n\u00f3 th\u00edch d\u00f9ng th\u1ebf nh\u1edf?<\/p>\n<p><!--more--><\/p>\n<p>R\u1ed3i, n\u1ebfu b\u1ea1n c\u00f3 bi\u1ebft 1 ch\u00fat Java, th\u00ec ch\u1eafc h\u1eb3n b\u1ea1n nh\u00ecn \u0111o\u1ea1n code khai b\u00e1o 1 object n\u00e0y r\u1ea5t quen ph\u1ea3i kh\u00f4ng?<\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\nconst x = {\r\na: 'test',\r\nb: 'test2',\r\nc: 'test3'\r\n};\r\n<\/pre>\n<p class=\"crayon-line\"><span class=\"crayon-sy\">Tr\u01b0\u1edbc khi ch\u01b0a c\u00f3 PHP 5.4, th\u00ec \u0111i\u1ec1u c\u00f3 m\u1ea5y properties ki\u1ec3u\u00a0<em>a,b,c\u00a0<\/em>m\u00e0 kh\u00f4ng c\u1ea7n khai b\u00e1o tr\u01b0\u1edbc trong class r\u1ed3i th\u00ec get(), set() l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3. Nh\u01b0ng may m\u1eafn thay, gi\u1edd \u0111\u00e2y v\u1edbi PHP version &gt; 5.4, ta c\u00f3 th\u1ec3 t\u1ea1o 1 object m\u00e0 \u0111\u1ebfch c\u1ea7n class n\u00e0o c\u1ea3, c\u00e1c properties c\u1ee7a class c\u0169ng ch\u1ea3 c\u1ea7n \u0111\u1ecbnh ngh\u0129a lu\u00f4n, th\u00edch nh\u00e9t bao nhi\u00eau v\u00e0o c\u0169ng \u0111\u01b0\u1ee3c h\u1ebft. Tr\u00f4ng n\u00f3 nh\u01b0 n\u00e0y:<\/span><\/p>\n<pre class=\"brush: php; title: ; notranslate\" title=\"\">\r\n$book = new stdClass;\r\n$book-&gt;title = &quot;Harry Potter and the Prisoner of Azkaban&quot;;\r\n$book-&gt;author = &quot;J. K. Rowling&quot;;\r\n$book-&gt;publisher = &quot;Arthur A. Levine Books&quot;;\r\n$book-&gt;amazon_link = &quot;http:\/\/www.amazon.com\/dp\/0439136369\/&quot;;\r\n<\/pre>\n<p class=\"crayon-line\">Th\u1ea5y object \u0111\u01b0\u1ee3c t\u1ea1o t\u1eeb class g\u00ec kh\u00f4ng?\u00a0<strong>stdClass\u00a0<\/strong>\u0111\u00f3!!! \u0110\u00f4i khi t\u1ea5t c\u1ea3 nh\u1eefng g\u00ec ch\u00fang ta c\u1ea7n l\u00e0 1 c\u00e1i class \u0111\u1ec3 n\u00e9m v\u00e0o 1 v\u00e0i properties \u0111\u01a1n gi\u1ea3n th\u00f4i, nh\u01b0ng thay v\u00ec t\u1ea1o 1 class m\u1edbi, khai b\u00e1o properties c\u00e1c ki\u1ec3u con \u0111\u00e0 \u0111i\u1ec3u, r\u1ed3i th\u00ec use n\u00f3, r\u1ed3i m\u1edbi new \u0111\u01b0\u1ee3c object, ch\u00fang ta ch\u1ec9 c\u1ea7n \u0111\u01a1n gi\u1ea3n new lu\u00f4n t\u1eeb\u00a0<strong>stdClass<\/strong> l\u00e0 xong!<\/p>\n<p class=\"crayon-line\">Th\u1eadm ch\u00ed cast tr\u1ef1c ti\u1ebfp t\u1eeb 1 array sang c\u0169ng \u0111\u01b0\u1ee3c lu\u00f4n:<\/p>\n<pre class=\"brush: php; title: ; notranslate\" title=\"\">\r\n$array = array(\r\n    &quot;title&quot; =&gt; &quot;Harry Potter and the Prisoner of Azkaban&quot;,\r\n    &quot;author&quot; =&gt; &quot;J. K. Rowling&quot;,\r\n    &quot;publisher&quot; =&gt; &quot;Arthur A. Levine Books&quot;,\r\n    &quot;amazon_link&quot; =&gt; &quot;http:\/\/www.amazon.com\/dp\/0439136369\/&quot;\r\n);\r\n \r\n$books = (object) $array;\r\n<\/pre>\n<p class=\"crayon-line\">T\u00f3m l\u1ea1i, s\u1eed d\u1ee5ng object r\u1ea5t l\u00e0 ti\u1ec7n, ti\u1ec7n h\u01a1n array r\u1ea5t nhi\u1ec1u, nh\u1ea5t l\u00e0 v\u1edbi CSDL l\u1edbn v\u00e0 ph\u1ee9c t\u1ea1p (nested array etc&#8230;). V\u00ec th\u1ebf n\u00ean m\u1edbi c\u00f3 s\u1ef1 ra \u0111\u1eddi c\u1ee7a\u00a0<strong>stdClass\u00a0<\/strong>(<em>std\u00a0<\/em>l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a\u00a0<em>standard<\/em>). Nh\u01b0ng n\u1ebfu ai n\u00f3i b\u1ea1n\u00a0<strong>stdClass<\/strong> l\u00e0\u00a0<strong>base class<\/strong> th\u00ec \u0111\u00e1nh n\u00f3 ngay nh\u00e9, ph\u1ea3i \u0111\u00e1nh lu\u00f4n &amp; m\u1ea1nh v\u00e0o. <strong>stdClass\u00a0kh\u00f4ng ph\u1ea3i base<\/strong> bi\u1ebfc g\u00ec c\u1ea3 nh\u00e9. Vui l\u00f2ng nh\u1edb d\u00f9m.<\/p>\n<p class=\"crayon-line\">Xin h\u1ebft, tu\u1ea7n sau h\u1eb9n g\u1eb7p l\u1ea1i c\u00e1c b\u1ea1n v\u1edbi ch\u1ee7 \u0111\u1ec1 l\u00e0 <strong>Trait &#8211; PHP<\/strong>\u00a0nh\u00e9 \ud83d\ude09 Peace out!<\/p>\n<p class=\"crayon-line\" style=\"text-align: right;\">Dang.NH<\/p>","protected":false},"excerpt":{"rendered":"<p>Ch\u00e0o c\u00e1c b\u1ea1n, m\u00ecnh l\u00e0 \u0110\u0103ng, v\u00e0 m\u00ecnh \u0111\u00e3 tr\u1edf l\u1ea1i r\u1ed3i \u0111\u00e2yy\u00a0 N\u1ebfu b\u1ea1n l\u00e0 1 ng\u01b0\u1eddi r\u1ea5t hay t\u00f2 m\u00f2 ngh\u1ecbch ng\u1ee3m, gi\u1ed1ng t\u00f4i, th\u00ec ch\u1eafc h\u1eb3n b\u1ea1n \u0111\u00e3 t\u1eebng lang thang trong core c\u1ee7a m\u1ea5y th\u1eb1ng PHP framework nh\u01b0 Laravel hay Yii, v\u00e0 ch\u1eafc cmn c\u00fa l\u00e0 c\u00e1c b\u1ea1n c\u0169ng \u0111\u00e3 th\u1ea5y t\u1eeb kh\u00f3a\u00a0stdClass\u00a0quanh qu\u1ea9n trong \u0111\u00f3 v\u00e0i l\u1ea7n r\u1ed3i. Okay v\u1eady b\u00e2y gi\u1edd ch\u00fang ta c\u00f9ng x\u1eafn tay \u00e1o l\u00ean \u0111\u1ec3 t\u00ecm hi\u1ec3u xem n\u00f3 l\u00e0 c\u00e1i qu\u00e1i g\u00ec m\u00e0 b\u1ecdn dev kh\u1ee7ng n\u00f3 th\u00edch d\u00f9ng th\u1ebf nh\u1edf?<\/p>","protected":false},"author":1,"featured_media":122,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5],"tags":[],"class_list":["post-124","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>stdClass l\u00e0 g\u00ec? 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Okay v\u1eady b\u00e2y gi\u1edd ch\u00fang ta c\u00f9ng x\u1eafn tay \u00e1o l\u00ean \u0111\u1ec3 t\u00ecm hi\u1ec3u xem n\u00f3 l\u00e0 c\u00e1i qu\u00e1i g\u00ec m\u00e0 b\u1ecdn dev kh\u1ee7ng n\u00f3 th\u00edch d\u00f9ng th\u1ebf nh\u1edf?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dangnh.cf\/vi\/2017\/05\/25\/stdclass-la-gi-lam-the-nao-de-co-properties-dong-trong-php\/\" \/>\n<meta property=\"og:site_name\" content=\"Mark&#039;s Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/dangtute\" \/>\n<meta property=\"article:published_time\" content=\"2017-05-25T04:47:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-01-02T05:04:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/dangnh.cf\/wp-content\/uploads\/2017\/05\/stdclass-trong-php.png?fit=365%2C268&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"365\" \/>\n\t<meta property=\"og:image:height\" content=\"268\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/dangnh.cf\\\/2017\\\/05\\\/25\\\/stdclass-la-gi-lam-the-nao-de-co-properties-dong-trong-php\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dangnh.cf\\\/2017\\\/05\\\/25\\\/stdclass-la-gi-lam-the-nao-de-co-properties-dong-trong-php\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/dangnh.cf\\\/#\\\/schema\\\/person\\\/8f3b9db3b250186af217fbeec88eda9c\"},\"headline\":\"stdClass l\u00e0 g\u00ec? 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