\n\n[a-z\u1ef3\u1ecd\u00e1\u1ea7\u1ea3\u1ea5\u1edd\u1ec5\u00e0\u1ea1\u1eb1\u1ec7\u1ebf\u00fd\u1ed9\u1ead\u1ed1\u0169\u1ee9\u0129\u00f5\u00fa\u1eef\u1ecb\u1ed7\u00ec\u1ec1\u1ec3\u1ea9\u1edb\u1eb7\u00f2\u00f9\u1ed3\u1ee3\u00e3\u1ee5\u1ee7\u00ed\u1ef9\u1eaf\u1eab\u1ef1\u1ec9\u1ecf\u1eeb\u1ef7\u1edf\u00f3\u00e9\u1eed\u1ef5\u1eb3\u1eb9\u00e8\u1ebd\u1ed5\u1eb5\u1ebb\u1ee1\u01a1\u00f4\u01b0\u0103\u00ea\u00e2\u0111']\n\n<\/code><\/pre>\n\n\n\nC\u00e1c k\u00fd t\u1ef1 kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1eef c\u00e1i nh\u01b0 s\u1ed1 (1 \u0111\u1ebfn 9), c\u00e1c k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t nh\u01b0 !, @, #, *,… s\u1ebd \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u00e0 b\u00e1o l\u1ed7i.<\/p>\n\n\n\n
V\u1edbi c\u00e1c k\u00fd t\u1ef1 kh\u00f4ng d\u1ea5u l\u1ec7nh regex \u0111\u1ec3 b\u1eaft h\u1ecd t\u00ean l\u00e0:<\/p>\n\n\n\n
^([a-z]+)((\\s{1}[a-z]+){1,})$<\/code><\/pre>\n\n\n\nC\u00e2u l\u1ec7nh tr\u00ean y\u00eau c\u1ea7u:<\/p>\n\n\n\n
- Ch\u1ec9 c\u00f3 ch\u1eef c\u00e1i t\u1eeb a \u0111\u1ebfn z v\u00e0 kho\u1ea3ng tr\u1ed1ng \u0111\u01b0\u1ee3c ph\u00e9p c\u00f3 trong t\u00ean;<\/li>
- K\u00fd t\u1ef1 \u0111\u1ea7u v\u00e0 cu\u1ed1i ph\u1ea3i l\u00e0 ch\u1eef c\u00e1i;<\/li>
- H\u1ecd t\u00ean ph\u1ea3i bao g\u1ed3m \u00edt nh\u1ea5t 2 t\u1eeb (ch\u1eef) tr\u1edf l\u00ean;<\/li>
- Gi\u1eefa c\u00e1c t\u1eeb ch\u1ec9 c\u00f3 m\u1ed9t d\u1ea5u c\u00e1ch;<\/li><\/ul>\n\n\n\n
C\u00e2u l\u1ec7nh t\u01b0\u01a1ng t\u1ef1 cho ti\u1ebfng Vi\u1ec7t s\u1ebd l\u00e0:<\/p>\n\n\n\n
^([a-vxy\u1ef3\u1ecd\u00e1\u1ea7\u1ea3\u1ea5\u1edd\u1ec5\u00e0\u1ea1\u1eb1\u1ec7\u1ebf\u00fd\u1ed9\u1ead\u1ed1\u0169\u1ee9\u0129\u00f5\u00fa\u1eef\u1ecb\u1ed7\u00ec\u1ec1\u1ec3\u1ea9\u1edb\u1eb7\u00f2\u00f9\u1ed3\u1ee3\u00e3\u1ee5\u1ee7\u00ed\u1ef9\u1eaf\u1eab\u1ef1\u1ec9\u1ecf\u1eeb\u1ef7\u1edf\u00f3\u00e9\u1eed\u1ef5\u1eb3\u1eb9\u00e8\u1ebd\u1ed5\u1eb5\u1ebb\u1ee1\u01a1\u00f4\u01b0\u0103\u00ea\u00e2\u0111]+)((\\s{1}[a-vxy\u1ef3\u1ecd\u00e1\u1ea7\u1ea3\u1ea5\u1edd\u1ec5\u00e0\u1ea1\u1eb1\u1ec7\u1ebf\u00fd\u1ed9\u1ead\u1ed1\u0169\u1ee9\u0129\u00f5\u00fa\u1eef\u1ecb\u1ed7\u00ec\u1ec1\u1ec3\u1ea9\u1edb\u1eb7\u00f2\u00f9\u1ed3\u1ee3\u00e3\u1ee5\u1ee7\u00ed\u1ef9\u1eaf\u1eab\u1ef1\u1ec9\u1ecf\u1eeb\u1ef7\u1edf\u00f3\u00e9\u1eed\u1ef5\u1eb3\u1eb9\u00e8\u1ebd\u1ed5\u1eb5\u1ebb\u1ee1\u01a1\u00f4\u01b0\u0103\u00ea\u00e2\u0111]+){1,})$<\/code><\/pre>\n\n\n\nN\u1ebfu b\u1ea1n mu\u1ed1n gi\u1edbi h\u1ea1n s\u1ed1 k\u00fd t\u1ef1 trong m\u1ed9t t\u1eeb ch\u1ec9 l\u00e0 10 v\u00e0 s\u1ed1 t\u1eeb trong m\u1ed9t t\u00ean t\u1ed1i \u0111a l\u00e0 5 th\u00ec vi\u1ebft nh\u01b0 sau:<\/p>\n\n\n\n
^([a-z]{1,10})((\\s{1}[a-z]{1,10}){1,4})$<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"T\u00f4i c\u00f3 vi\u1ebft b\u00e0i v\u1ec1 vi\u1ec7c x\u1eed l\u00fd h\u1ecd t\u00ean b\u1eb1ng PHP tr\u01b0\u1edbc \u0111\u00e2y, d\u00f9 c\u00e1c \u0111o\u1ea1n m\u00e3 \u0111\u00f3 c\u0169ng th\u00fa v\u1ecb th\u00ec v\u1edbi RegEx v\u1ea5n \u0111\u1ec1 ph\u00e1t hi\u1ec7n l\u1ed7i \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhanh h\u01a1n \u0111\u00e1ng k\u1ec3. Tuy nhi\u00ean ch\u00fang ta c\u1ea7n l\u01b0u \u00fd l\u00e0 c\u00fa ph\u00e1p c\u1ee7a RegEx ch\u01b0a t\u00ednh \u0111\u1ebfn c\u00e1c ng\u00f4n ng\u1eef …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[238],"tags":[],"yoast_head":"\n
Ki\u1ec3m tra h\u1ecd t\u00ean h\u1ee3p chu\u1ea9n nhanh h\u01a1n v\u1edbi RegEx • Ki\u1ebfn c\u00e0ng<\/title>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\t\n\t\n\t\n","yoast_head_json":{"title":"Ki\u1ec3m tra h\u1ecd t\u00ean h\u1ee3p chu\u1ea9n nhanh h\u01a1n v\u1edbi RegEx • Ki\u1ebfn c\u00e0ng","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/kiencang.net\/kiem-tra-ho-ten-regex\/","og_locale":"vi_VN","og_type":"article","og_title":"Ki\u1ec3m tra h\u1ecd t\u00ean h\u1ee3p chu\u1ea9n nhanh h\u01a1n v\u1edbi RegEx • Ki\u1ebfn c\u00e0ng","og_description":"T\u00f4i c\u00f3 vi\u1ebft b\u00e0i v\u1ec1 vi\u1ec7c x\u1eed l\u00fd h\u1ecd t\u00ean b\u1eb1ng PHP tr\u01b0\u1edbc \u0111\u00e2y, d\u00f9 c\u00e1c \u0111o\u1ea1n m\u00e3 \u0111\u00f3 c\u0169ng th\u00fa v\u1ecb th\u00ec v\u1edbi RegEx v\u1ea5n \u0111\u1ec1 ph\u00e1t hi\u1ec7n l\u1ed7i \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhanh h\u01a1n \u0111\u00e1ng k\u1ec3. Tuy nhi\u00ean ch\u00fang ta c\u1ea7n l\u01b0u \u00fd l\u00e0 c\u00fa ph\u00e1p c\u1ee7a RegEx ch\u01b0a t\u00ednh \u0111\u1ebfn c\u00e1c ng\u00f4n ng\u1eef …","og_url":"https:\/\/kiencang.net\/kiem-tra-ho-ten-regex\/","og_site_name":"Ki\u1ebfn c\u00e0ng","article_author":"https:\/\/www.facebook.com\/anhducnguyen87\/","article_published_time":"2021-08-15T07:27:43+00:00","author":"Nguy\u1ec5n \u0110\u1ee9c Anh","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"Nguy\u1ec5n \u0110\u1ee9c Anh","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"2 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/kiencang.net\/kiem-tra-ho-ten-regex\/","url":"https:\/\/kiencang.net\/kiem-tra-ho-ten-regex\/","name":"Ki\u1ec3m tra h\u1ecd t\u00ean h\u1ee3p chu\u1ea9n nhanh h\u01a1n v\u1edbi RegEx • Ki\u1ebfn c\u00e0ng","isPartOf":{"@id":"https:\/\/kiencang.net\/#website"},"datePublished":"2021-08-15T07:27:43+00:00","dateModified":"2021-08-15T07:27:43+00:00","author":{"@id":"https:\/\/kiencang.net\/#\/schema\/person\/5e7e1a04d8d1218ad8c421ba43d25c16"},"breadcrumb":{"@id":"https:\/\/kiencang.net\/kiem-tra-ho-ten-regex\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/kiencang.net\/kiem-tra-ho-ten-regex\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/kiencang.net\/kiem-tra-ho-ten-regex\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/kiencang.net\/"},{"@type":"ListItem","position":2,"name":"Ki\u1ec3m tra h\u1ecd t\u00ean h\u1ee3p chu\u1ea9n nhanh h\u01a1n v\u1edbi RegEx"}]},{"@type":"WebSite","@id":"https:\/\/kiencang.net\/#website","url":"https:\/\/kiencang.net\/","name":"Ki\u1ebfn c\u00e0ng","description":"\u00d4m l\u00fd thuy\u1ebft, h\u00f4n th\u1ef1c h\u00e0nh","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/kiencang.net\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"vi"},{"@type":"Person","@id":"https:\/\/kiencang.net\/#\/schema\/person\/5e7e1a04d8d1218ad8c421ba43d25c16","name":"Nguy\u1ec5n \u0110\u1ee9c Anh","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/kiencang.net\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/6d71f9b89393952a8382e30dad26c1ec?s=96&d=monsterid&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6d71f9b89393952a8382e30dad26c1ec?s=96&d=monsterid&r=g","caption":"Nguy\u1ec5n \u0110\u1ee9c Anh"},"description":"Sinh n\u0103m 1987, t\u1ed1t nghi\u1ec7p Cao \u0111\u1eb3ng th\u1ef1c h\u00e0nh FPT qu\u00e3ng 2014, chuy\u00ean ng\u00e0nh Thi\u1ebft k\u1ebf website. T\u00f4i th\u00edch Content, SEO, Ads, T\u0103ng t\u1ed1c website v\u00e0 Th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed. B\u00ean c\u1ea1nh b\u00e0i t\u1ef1 vi\u1ebft, t\u00f4i c\u0169ng d\u1ecbch nhi\u1ec1u n\u1ed9i dung th\u00fa v\u1ecb c\u1ee7a c\u00e1c t\u00e1c gi\u1ea3 kh\u00e1c nhau. FB c\u00e1 nh\u00e2n: facebook.com\/anhducnguyen87. Email li\u00ean h\u1ec7: guiemailchotoi@gmail.com","sameAs":["https:\/\/www.facebook.com\/anhducnguyen87\/"],"url":"https:\/\/kiencang.net\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts\/13876"}],"collection":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/comments?post=13876"}],"version-history":[{"count":0,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts\/13876\/revisions"}],"wp:attachment":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/media?parent=13876"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/categories?post=13876"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/tags?post=13876"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}