{"id":15140,"date":"2021-10-15T07:33:36","date_gmt":"2021-10-15T07:33:36","guid":{"rendered":"https:\/\/freehost.page\/?p=15140"},"modified":"2021-10-15T07:33:36","modified_gmt":"2021-10-15T07:33:36","slug":"viet-hoa-ky-tu-dau-tien","status":"publish","type":"post","link":"https:\/\/kiencang.net\/viet-hoa-ky-tu-dau-tien\/","title":{"rendered":"H\u00e0m PHP vi\u1ebft hoa k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean c\u1ee7a t\u1eeb \u0111\u01a1n ho\u1eb7c c\u1ee5m t\u1eeb"},"content":{"rendered":"\n<p>H\u00e0m n\u00e0y nh\u01b0 ti\u00eau \u0111\u1ec1, d\u00f9ng \u0111\u1ec3 chuy\u1ec3n k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean c\u1ee7a m\u1ed9t t\u1eeb th\u00e0nh d\u1ea1ng in hoa, n\u00f3 nh\u01b0 sau:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ Vi\u1ebft hoa k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean c\u1ee7a t\u1eeb \u0111\u01a1n\nfunction vn_mb_ucfirst($str) {\n    $fc = mb_strtoupper(mb_substr($str, 0, 1));\n    return $fc.mb_substr($str, 1);\n}\n\n\/\/ Vi\u1ebft hoa k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean c\u1ee7a c\u1ee5m t\u1eeb\nfunction vn_mb_ucfirst_str($str) {\n    $str2 = vn_rmv_wsp($str); \/\/ x\u00f3a kho\u1ea3ng tr\u1eafng d\u01b0 th\u1eeba\n    $word = mb_split(' ', $str2); \/\/ t\u00e1ch chu\u1ed7i\n    $num = count($word); \/\/ so tu\n    $rs = \"\";\n    \n    for ($i=0; $i&lt;$num; $i++) {\n        $rs .= ' '.vn_mb_ucfirst($word&#91;$i]);\n    }\n\nreturn $rs;    \n}<\/code><\/pre>\n\n\n\n<p>V\u00ed d\u1ee5 1: <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo vn_mb_ucfirst(\"nguy\u1ec5n\");\n\n\/\/ K\u1ebft qu\u1ea3: Nguy\u1ec5n<\/code><\/pre>\n\n\n\n<p>V\u00ed d\u1ee5 2:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo vn_mb_ucfirst_str(\"nguy\u1ec5n \u0111\u1ee9c anh\");\n\n\/\/ K\u1ebft qu\u1ea3: Nguy\u1ec5n \u0110\u1ee9c Anh<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>H\u00e0m n\u00e0y nh\u01b0 ti\u00eau \u0111\u1ec1, d\u00f9ng \u0111\u1ec3 chuy\u1ec3n k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean c\u1ee7a m\u1ed9t t\u1eeb th\u00e0nh d\u1ea1ng in hoa, n\u00f3 nh\u01b0 sau: V\u00ed d\u1ee5 1: V\u00ed d\u1ee5 2:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[238,241],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>H\u00e0m PHP vi\u1ebft hoa k\u00fd t\u1ef1 \u0111\u1ea7u ti\u00ean c\u1ee7a t\u1eeb \u0111\u01a1n ho\u1eb7c c\u1ee5m t\u1eeb &#8226; 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