{"id":78,"date":"2025-08-16T11:18:26","date_gmt":"2025-08-16T04:18:26","guid":{"rendered":"https:\/\/solio.online\/blog\/?p=78"},"modified":"2025-11-20T14:40:30","modified_gmt":"2025-11-20T07:40:30","slug":"json-dinh-dang-du-lieu-pho-bien-nhat-hien-nay","status":"publish","type":"post","link":"https:\/\/solio.online\/blog\/json-dinh-dang-du-lieu-pho-bien-nhat-hien-nay\/","title":{"rendered":"JSON \u2013 \u0110\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>1. JSON l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JSON (JavaScript Object Notation) l\u00e0 m\u1ed9t \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u nh\u1eb9, d\u1ec5 \u0111\u1ecdc v\u00e0 d\u1ec5 ph\u00e2n t\u00edch, th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 trao \u0111\u1ed5i d\u1eef li\u1ec7u gi\u1eefa m\u00e1y kh\u00e1ch (client) v\u00e0 m\u00e1y ch\u1ee7 (server).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb JavaScript, JSON \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi h\u1ea7u h\u1ebft c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh nh\u01b0 PHP, Python, Java, C#, Go\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5 m\u1ed9t JSON \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;name&#8221;: &#8220;Trung Vu&#8221;,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;age&#8221;: 30,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;skills&#8221;: [&#8220;PHP&#8221;, &#8220;JavaScript&#8221;, &#8220;Node.js&#8221;],<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;isAdmin&#8221;: false<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. \u01afu \u0111i\u1ec3m c\u1ee7a JSON<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nh\u1eb9 &amp; nhanh: C\u1ea5u tr\u00fac g\u1ecdn g\u00e0ng, \u00edt k\u00fd t\u1ef1 th\u1eeba.<\/li>\n\n\n\n<li>D\u1ec5 \u0111\u1ecdc &amp; vi\u1ebft: Gi\u1ed1ng c\u00fa ph\u00e1p object trong JavaScript.<\/li>\n\n\n\n<li>\u0110a n\u1ec1n t\u1ea3ng: D\u00f9ng \u0111\u01b0\u1ee3c \u1edf m\u1ecdi ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh.<\/li>\n\n\n\n<li>Th\u00e2n thi\u1ec7n v\u1edbi API: H\u1ea7u h\u1ebft REST API, GraphQL \u0111\u1ec1u s\u1eed d\u1ee5ng JSON l\u00e0m \u0111\u1ecbnh d\u1ea1ng m\u1eb7c \u0111\u1ecbnh.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. C\u1ea5u tr\u00fac d\u1eef li\u1ec7u trong JSON<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JSON ch\u1ec9 h\u1ed7 tr\u1ee3 6 ki\u1ec3u d\u1eef li\u1ec7u c\u01a1 b\u1ea3n:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>String \u2013 Chu\u1ed7i, \u0111\u1eb7t trong d\u1ea5u ngo\u1eb7c k\u00e9p &#8221; &#8220;.<\/li>\n\n\n\n<li>Number \u2013 S\u1ed1 nguy\u00ean ho\u1eb7c s\u1ed1 th\u1ef1c.<\/li>\n\n\n\n<li>Boolean \u2013 true ho\u1eb7c false.<\/li>\n\n\n\n<li>Array \u2013 M\u1ea3ng gi\u00e1 tr\u1ecb, \u0111\u1eb7t trong [].<\/li>\n\n\n\n<li>Object \u2013 T\u1eadp h\u1ee3p c\u00e1c c\u1eb7p key: value, \u0111\u1eb7t trong {}.<\/li>\n\n\n\n<li>null \u2013 Gi\u00e1 tr\u1ecb r\u1ed7ng.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5 minh h\u1ecda:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;title&#8221;: &#8220;H\u1ecdc JSON&#8221;,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;views&#8221;: 1500,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;published&#8221;: true,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;tags&#8221;: [&#8220;data&#8221;, &#8220;json&#8221;, &#8220;api&#8221;],<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;author&#8221;: { &#8220;name&#8221;: &#8220;Trung Vu&#8221;, &#8220;country&#8221;: &#8220;VN&#8221; },<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;description&#8221;: null<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Quy t\u1eafc JSON c\u1ea7n nh\u1edb<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u00ean key ph\u1ea3i \u0111\u1eb7t trong d\u1ea5u ngo\u1eb7c k\u00e9p &#8221; &#8220;.<\/li>\n\n\n\n<li>Gi\u00e1 tr\u1ecb c\u00f3 th\u1ec3 l\u00e0 b\u1ea5t k\u1ef3 ki\u1ec3u d\u1eef li\u1ec7u JSON h\u1ee3p l\u1ec7.<\/li>\n\n\n\n<li>Kh\u00f4ng cho ph\u00e9p d\u1ea5u ph\u1ea9y cu\u1ed1i c\u00f9ng trong object ho\u1eb7c array.<\/li>\n\n\n\n<li>JSON ph\u00e2n bi\u1ec7t hoa th\u01b0\u1eddng.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. JSON v\u00e0 JavaScript<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong JavaScript, ch\u00fang ta th\u01b0\u1eddng d\u00f9ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>JSON.stringify(obj) \u2013 Chuy\u1ec3n object \u2192 JSON string.<\/li>\n\n\n\n<li>JSON.parse(jsonString) \u2013 Chuy\u1ec3n JSON string \u2192 object.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">let obj = { name: &#8220;Trung Vu&#8221;, age: 30 };<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">let jsonStr = JSON.stringify(obj);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">console.log(jsonStr); \/\/ {&#8220;name&#8221;:&#8221;Trung Vu&#8221;,&#8221;age&#8221;:30}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">let obj2 = JSON.parse(jsonStr);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">console.log(obj2.name); \/\/ Trung Vu<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>6. JSON v\u00e0 PHP<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PHP cung c\u1ea5p h\u00e0m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>json_encode() \u2013 Chuy\u1ec3n array\/object \u2192 JSON.<\/li>\n\n\n\n<li>json_decode() \u2013 Chuy\u1ec3n JSON string \u2192 object ho\u1eb7c array.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&lt;?php<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$data = [&#8220;name&#8221; =&gt; &#8220;Trung Vu&#8221;, &#8220;age&#8221; =&gt; 30];<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$json = json_encode($data);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">echo $json; \/\/ {&#8220;name&#8221;:&#8221;Trung Vu&#8221;,&#8221;age&#8221;:30}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$obj = json_decode($json);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">echo $obj-&gt;name; \/\/ Trung Vu<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">?&gt;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>7. JSON trong API<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JSON l\u00e0 \u0111\u1ecbnh d\u1ea1ng m\u1eb7c \u0111\u1ecbnh trong h\u1ea7u h\u1ebft REST API. V\u00ed d\u1ee5 m\u1ed9t response t\u1eeb API:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;status&#8221;: &#8220;success&#8221;,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &#8220;data&#8221;: {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &nbsp; &#8220;id&#8221;: 101,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &nbsp; &#8220;title&#8221;: &#8220;B\u00e0i vi\u1ebft v\u1ec1 JSON&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; }<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ee8ng d\u1ee5ng front-end s\u1ebd nh\u1eadn JSON n\u00e0y v\u00e0 hi\u1ec3n th\u1ecb d\u1eef li\u1ec7u l\u00ean giao di\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>8. So s\u00e1nh JSON v\u1edbi XML<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Ti\u00eau ch\u00ed<\/strong><\/td><td><strong>JSON<\/strong><\/td><td><strong>XML<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 d\u00e0i<\/td><td>Ng\u1eafn g\u1ecdn h\u01a1n<\/td><td>D\u00e0i h\u01a1n do nhi\u1ec1u th\u1ebb<\/td><\/tr><tr><td>\u0110\u1ecdc\/ghi<\/td><td>D\u1ec5 \u0111\u1ecdc v\u00e0 vi\u1ebft<\/td><td>Kh\u00f3 h\u01a1n<\/td><\/tr><tr><td>H\u1ed7 tr\u1ee3 ki\u1ec3u d\u1eef li\u1ec7u<\/td><td>C\u00f3 (string, number, boolean\u2026)<\/td><td>T\u1ea5t c\u1ea3 l\u00e0 text<\/td><\/tr><tr><td>T\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd<\/td><td>Nhanh h\u01a1n<\/td><td>Ch\u1eadm h\u01a1n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>9. L\u1ed7i th\u01b0\u1eddng g\u1eb7p khi l\u00e0m vi\u1ec7c v\u1edbi JSON<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sai c\u00fa ph\u00e1p: Thi\u1ebfu d\u1ea5u &#8221; ho\u1eb7c d\u1ea5u ,.<\/li>\n\n\n\n<li>Sai encoding: D\u1eef li\u1ec7u ch\u1ee9a k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t nh\u01b0ng ch\u01b0a encode \u0111\u00fang.<\/li>\n\n\n\n<li>Sai ki\u1ec3u d\u1eef li\u1ec7u: V\u00ed d\u1ee5 &#8220;true&#8221; (string) kh\u00e1c v\u1edbi true (boolean).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>10. K\u1ebft lu\u1eadn<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JSON l\u00e0 m\u1ed9t chu\u1ea9n linh ho\u1ea1t, m\u1ea1nh m\u1ebd v\u00e0 d\u1ec5 d\u00f9ng trong l\u1eadp tr\u00ecnh hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t khi l\u00e0m vi\u1ec7c v\u1edbi API v\u00e0 \u1ee9ng d\u1ee5ng web. Vi\u1ec7c n\u1eafm v\u1eefng JSON gi\u00fap b\u1ea1n x\u1eed l\u00fd d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 v\u00e0 t\u01b0\u01a1ng t\u00e1c gi\u1eefa client-server m\u01b0\u1ee3t m\u00e0 h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. JSON l\u00e0 g\u00ec? JSON (JavaScript Object Notation) l\u00e0 m\u1ed9t \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u nh\u1eb9, d\u1ec5 \u0111\u1ecdc v\u00e0 d\u1ec5 ph\u00e2n t\u00edch, th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 trao \u0111\u1ed5i d\u1eef li\u1ec7u gi\u1eefa m\u00e1y kh\u00e1ch (client) v\u00e0 m\u00e1y ch\u1ee7 (server). M\u1eb7c d\u00f9 c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb JavaScript, JSON \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi h\u1ea7u h\u1ebft c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"class_list":["post-78","post","type-post","status-publish","format-standard","hentry","category-thu-vien-lap-trinh"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>JSON \u2013 \u0110\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay - Solio.online Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/solio.online\/blog\/json-dinh-dang-du-lieu-pho-bien-nhat-hien-nay\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JSON \u2013 \u0110\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay - Solio.online Blog\" \/>\n<meta property=\"og:description\" content=\"1. JSON l\u00e0 g\u00ec? JSON (JavaScript Object Notation) l\u00e0 m\u1ed9t \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u nh\u1eb9, d\u1ec5 \u0111\u1ecdc v\u00e0 d\u1ec5 ph\u00e2n t\u00edch, th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 trao \u0111\u1ed5i d\u1eef li\u1ec7u gi\u1eefa m\u00e1y kh\u00e1ch (client) v\u00e0 m\u00e1y ch\u1ee7 (server). 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