{"id":12408,"date":"2013-08-23T08:03:00","date_gmt":"2013-08-23T08:03:00","guid":{"rendered":"https:\/\/kiencang.net\/2013\/08\/23\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/"},"modified":"2013-08-23T08:03:00","modified_gmt":"2013-08-23T08:03:00","slug":"toan-tu-so-sanh-va-toan-tu-logic-trong-php","status":"publish","type":"post","link":"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/","title":{"rendered":"To\u00e1n t\u1eed so s\u00e1nh v\u00e0 to\u00e1n t\u1eed logic trong PHP"},"content":{"rendered":"\n<p>H\u00f4m nay Ki\u1ebfn c\u00e0ng s\u1ebd c\u00f9ng b\u1ea1n t\u00ecm hi\u1ec3u c\u00e1c to\u00e1n t\u1eed so s\u00e1nh v\u00e0 logic v\u1ed1n r\u1ea5t hay \u0111\u01b0\u1ee3c d\u00f9ng trong PHP m\u00e0 ch\u1ee7 y\u1ebfu l\u00e0 \u0111i k\u00e8m v\u1edbi <a href=\"https:\/\/kiencang.net\/cach-viet-cau-lenh-if-trong-php\/\" target=\"_blank\" rel=\"noreferrer noopener\">c\u00e1c h\u00e0m \u0111i\u1ec1u ki\u1ec7n (v\u00ed d\u1ee5 nh\u01b0 if)<\/a>. N\u1ebfu bi\u1ebft ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c, b\u1ea1n s\u1ebd th\u1ea5y t\u1ea7m quan tr\u1ecdng v\u00e0 ph\u1ed5 bi\u1ebfn c\u1ee7a nh\u1eefng to\u00e1n t\u1eed n\u00e0y.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-6577d688f05cf\" ><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-6577d688f05cf\"  type=\"checkbox\" id=\"item-6577d688f05cf\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/#Toan_tu_so_sanh\" title=\"To\u00e1n t\u1eed so s\u00e1nh\">To\u00e1n t\u1eed so s\u00e1nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/#Toan_tu_logic_va_thu_tu_uu_tien\" title=\"To\u00e1n t\u1eed logic v\u00e0 th\u1ee9 t\u1ef1 \u01b0u ti\u00ean\">To\u00e1n t\u1eed logic v\u00e0 th\u1ee9 t\u1ef1 \u01b0u ti\u00ean<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/#Ban_khong_can_phai_mo_dong_ngoac_qua_nhieu\" title=\"B\u1ea1n kh\u00f4ng c\u1ea7n ph\u1ea3i m\u1edf \u0111\u00f3ng ngo\u1eb7c qu\u00e1 nhi\u1ec1u\">B\u1ea1n kh\u00f4ng c\u1ea7n ph\u1ea3i m\u1edf \u0111\u00f3ng ngo\u1eb7c qu\u00e1 nhi\u1ec1u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/#Ve_khoang_cach_giua_cac_bien_va_toan_tu_logic_cung_nhu_toan_tu_so_sanh\" title=\"V\u1ec1 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c bi\u1ebfn v\u00e0 to\u00e1n t\u1eed logic c\u0169ng nh\u01b0 to\u00e1n t\u1eed so s\u00e1nh\">V\u1ec1 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c bi\u1ebfn v\u00e0 to\u00e1n t\u1eed logic c\u0169ng nh\u01b0 to\u00e1n t\u1eed so s\u00e1nh<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Toan_tu_so_sanh\"><\/span><b><strong>To\u00e1n t\u1eed so s\u00e1nh<\/strong><\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th>To\u00e1n t\u1eed<\/th><th>T\u00ean<\/th><th>V\u00ed d\u1ee5<\/th><\/tr><tr><td> <div style=\"text-align: center;\"><code>==<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">B\u1eb1ng<\/div>\n<\/td><td> <div style=\"text-align: center;\">$url == freehost.page<\/div> <div style=\"text-align: center;\">$Xman == TRUE<\/div> <\/td><\/tr><tr><td> <div style=\"text-align: center;\"><code>!=<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">Kh\u00f4ng b\u1eb1ng<\/div>\n<\/td><td>\n<div style=\"text-align: center;\">$so_chia != 0<\/div>\n<\/td><\/tr><tr><td> <div style=\"text-align: center;\"><code>&lt;<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">Nh\u1ecf h\u01a1n<\/div>\n<\/td><td>\n<div style=\"text-align: center;\">$tuoi &lt; 10<\/div>\n<\/td><\/tr><tr><td> <div style=\"text-align: center;\"><code>&lt;=<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">Nh\u1ecf h\u01a1n ho\u1eb7c b\u1eb1ng<\/div>\n<\/td><td>\n<div style=\"text-align: center;\">$tong_tien &lt;= 300000<\/div>\n<\/td><\/tr><tr><td> <div style=\"text-align: center;\"><code>&gt;<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">L\u1edbn h\u01a1n<\/div>\n<\/td><td>\n<div style=\"text-align: center;\">$diem_trung_binh &gt; 8<\/div>\n<\/td><\/tr><tr><td> <div style=\"text-align: center;\"><code>&gt;=<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">L\u1edbn h\u01a1n ho\u1eb7c b\u1eb1ng<\/div>\n<\/td><td>\n<div style=\"text-align: center;\">$tuoi &gt;= 18<\/div>\n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Toan_tu_logic_va_thu_tu_uu_tien\"><\/span><b><strong>To\u00e1n t\u1eed logic v\u00e0 th\u1ee9 t\u1ef1 \u01b0u ti\u00ean<\/strong><\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th>To\u00e1n t\u1eed<\/th><th>T\u00ean<\/th><th>V\u00ed d\u1ee5<\/th><\/tr><tr><td> <div style=\"text-align: center;\"><code>!<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">Ph\u1ee7 \u0111\u1ecbnh<\/div>\n<\/td><td>\n<div style=\"text-align: center;\">!is_numeric($so_luong)<\/div>\n<\/td><\/tr><tr><td> <div style=\"text-align: center;\"><code>&amp;&amp;<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">V\u00e0<\/div>\n<\/td><td>\n<div style=\"text-align: center;\">$tuoi &gt;=18 &amp;&amp; $gioi_tinh == &#8216;nam&#8217;<\/div>\n<\/td><\/tr><tr><td> <div style=\"text-align: center;\"><code>||<\/code><\/div> <\/td><td>\n<div style=\"text-align: center;\">Ho\u1eb7c<\/div>\n<\/td><td>\n<div style=\"text-align: center;\">$tot_nghiep == &#8216;gi\u1ecfi&#8217; || $tot_nghiep == &#8216;kh\u00e1&#8217;<\/div>\n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul><li>To\u00e1n t\u1eed V\u00e0 (<code>&amp;&amp;<\/code>) s\u1ebd tr\u1ea3 k\u1ebft qu\u1ea3 l\u00e0 TRUE khi v\u00e0 ch\u1ec9 khi c\u1ea3 2 ph\u00eda c\u1ee7a to\u00e1n t\u1eed \u0111\u1ec1u l\u00e0 TRUE, tr\u1ea3 v\u1ec1 FALSE khi ch\u1ec9 c\u1ea7n m\u1ed9t to\u00e1n t\u1eed l\u00e0 FALSE (b\u1ea1n c\u00f3 th\u1ec3 <a href=\"https:\/\/kiencang.net\/true-va-false-trong-php\/\" target=\"_blank\" rel=\"noreferrer noopener\">t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 TRUE v\u00e0 FALSE \u1edf \u0111\u00e2y<\/a>).<\/li><li>To\u00e1n t\u1eed Ho\u1eb7c (<code>||)<\/code> s\u1ebd tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 l\u00e0 TRUE khi ch\u1ec9 c\u1ea7n m\u1ed9t to\u00e1n t\u1eed l\u00e0 TRUE, tr\u1ea3 k\u1ebft qu\u1ea3 l\u00e0 FALSE khi v\u00e0 ch\u1ec9 khi c\u1ea3 2 ph\u00eda c\u1ee7a to\u00e1n t\u1eed \u0111\u1ec1u l\u00e0 FALSE.<\/li><li>To\u00e1n t\u1eed Ph\u1ee7 \u0111\u1ecbnh (<code>!<\/code>) s\u1ebd tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 ng\u01b0\u1ee3c v\u1edbi chu\u1ed7i \u0111\u01b0\u1ee3c ph\u1ee7 \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n n\u1ebfu X l\u00e0 TRUE, th\u00ec !X c\u00f3 gi\u00e1 tr\u1ecb FALSE. N\u1ebfu X l\u00e0 FALSE th\u00ec !X c\u00f3 gi\u00e1 tr\u1ecb TRUE.<\/li><li>\u0110\u1ec3 thay \u0111\u1ed5i th\u1ee9 t\u1ef1 \u01b0u ti\u00ean th\u1ef1c hi\u1ec7n c\u1ee7a c\u00e1c to\u00e1n t\u1eed ch\u00fang ta s\u1eed d\u1ee5ng d\u1ea5u ngo\u1eb7c \u0111\u01a1n ()<\/li><\/ul>\n\n\n\n<p>\u00dd ngh\u0129a c\u1ee7a c\u00e1c to\u00e1n t\u1eed V\u00e0, Ho\u1eb7c, Ph\u1ee7 \u0111\u1ecbnh kh\u00f4ng ch\u1ec9 \u0111\u00fang trong PHP m\u00e0 c\u00f2n \u0111\u00fang trong c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c.<\/p>\n\n\n\n<p>Nh\u1ea7m l\u1eabn gi\u1eefa to\u00e1n t\u1eed g\u00e1n (=) v\u00e0 to\u00e1n t\u1eed so s\u00e1nh b\u1eb1ng (==) l\u00e0 l\u1ed7i l\u1eadp tr\u00ecnh PHP r\u1ea5t hay g\u1eb7p, b\u1ea1n n\u00ean ch\u00fa \u00fd \u0111i\u1ec1u n\u00e0y.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ban_khong_can_phai_mo_dong_ngoac_qua_nhieu\"><\/span>B\u1ea1n kh\u00f4ng c\u1ea7n ph\u1ea3i m\u1edf \u0111\u00f3ng ngo\u1eb7c qu\u00e1 nhi\u1ec1u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u1ede c\u00e1c c\u00e2u l\u1ec7nh m\u1eabu tr\u00ean c\u00f3 l\u1ebd b\u1ea1n \u0111\u00e3 \u0111\u1ec3 \u00fd r\u1eb1ng to\u00e1n t\u1eed so s\u00e1nh \u0111\u01b0\u1ee3c \u01b0u ti\u00ean h\u01a1n to\u00e1n t\u1eed logic, do v\u1eady trong c\u00e2u l\u1ec7nh nh\u01b0:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$a &gt; $b &amp;&amp; $c &gt; 5<\/code><\/pre>\n\n\n\n<p>Th\u00ec PHP s\u1ebd ki\u1ec3m tra xem $a c\u00f3 l\u1edbn h\u01a1n $b kh\u00f4ng, r\u1ed3i ki\u1ec3m tra $c c\u00f3 l\u1edbn h\u01a1n 5 kh\u00f4ng, cu\u1ed1i c\u00f9ng m\u1edbi th\u1ef1c hi\u1ec7n to\u00e1n t\u1eed logic. Nh\u1edd v\u1eady, b\u1ea1n kh\u00f4ng ph\u1ea3i vi\u1ebft c\u00e2u l\u1ec7nh d\u00e0i d\u00f2ng nh\u01b0 th\u1ebf n\u00e0y:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>($a &gt; $b) &amp;&amp; ($c &gt; 5)<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ve_khoang_cach_giua_cac_bien_va_toan_tu_logic_cung_nhu_toan_tu_so_sanh\"><\/span>V\u1ec1 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c bi\u1ebfn v\u00e0 to\u00e1n t\u1eed logic c\u0169ng nh\u01b0 to\u00e1n t\u1eed so s\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>N\u1ebfu b\u1ea1n vi\u1ebft c\u00e1c to\u00e1n t\u1eed s\u00e1t s\u00e0n s\u1ea1t v\u00e0o bi\u1ebfn, c\u00e2u l\u1ec7nh v\u1eabn ch\u1ea1y b\u00ecnh th\u01b0\u1eddng, v\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$a = 6;\n$b = 5;\n$c = 7;\n\nif ($a>$b&amp;&amp;$c>5) {echo \"c\u1ea3 hai \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec1u \u0111\u00fang\";}<\/code><\/pre>\n\n\n\n<p>Nh\u01b0ng nh\u00ecn chung ch\u00fang ta n\u00ean tr\u00e1nh ki\u1ec3u vi\u1ebft n\u00e0y v\u00ec n\u00f3 d\u1ec5 g\u00e2y nh\u1ea7m l\u1eabn. Ch\u00fang ta n\u00ean vi\u1ebft nh\u01b0 sau:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$a = 6;\n$b = 5;\n$c = 7;\n\nif ($a > $b &amp;&amp; $c > 5) {echo \"c\u1ea3 hai \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec1u \u0111\u00fang\";}<\/code><\/pre>\n\n\n\n<p>Ho\u1eb7c n\u1ebfu c\u00f3 l\u01b0\u1eddi, ti\u1ec7n th\u00ec vi\u1ebft nh\u01b0 d\u01b0\u1edbi c\u0169ng \u0111\u01b0\u1ee3c:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$a = 6;\n$b = 5;\n$c = 7;\n\nif ($a>$b &amp;&amp; $c>5) {echo \"c\u1ea3 hai \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec1u \u0111\u00fang\";}<\/code><\/pre>\n\n\n\n<p>Nh\u01b0ng c\u1ea7n h\u1ebft s\u1ee9c tr\u00e1nh to\u00e1n t\u1eed logic b\u1ecb d\u00ednh v\u00e0o c\u00e1c bi\u1ebfn, v\u00ec nh\u01b0 v\u1eady r\u1ea5t kh\u00f3 ph\u00e2n bi\u1ec7t, d\u1ec5 sai s\u00f3t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u00f4m nay Ki\u1ebfn c\u00e0ng s\u1ebd c\u00f9ng b\u1ea1n t\u00ecm hi\u1ec3u c\u00e1c to\u00e1n t\u1eed so s\u00e1nh v\u00e0 logic v\u1ed1n r\u1ea5t hay \u0111\u01b0\u1ee3c d\u00f9ng trong PHP m\u00e0 ch\u1ee7 y\u1ebfu l\u00e0 \u0111i k\u00e8m v\u1edbi c\u00e1c h\u00e0m \u0111i\u1ec1u ki\u1ec7n (v\u00ed d\u1ee5 nh\u01b0 if). N\u1ebfu bi\u1ebft ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c, b\u1ea1n s\u1ebd th\u1ea5y t\u1ea7m quan tr\u1ecdng v\u00e0 ph\u1ed5 bi\u1ebfn c\u1ee7a &hellip;<\/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":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>To\u00e1n t\u1eed so s\u00e1nh v\u00e0 to\u00e1n t\u1eed logic trong PHP &#8226; Ki\u1ebfn c\u00e0ng<\/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:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"To\u00e1n t\u1eed so s\u00e1nh v\u00e0 to\u00e1n t\u1eed logic trong PHP &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"H\u00f4m nay Ki\u1ebfn c\u00e0ng s\u1ebd c\u00f9ng b\u1ea1n t\u00ecm hi\u1ec3u c\u00e1c to\u00e1n t\u1eed so s\u00e1nh v\u00e0 logic v\u1ed1n r\u1ea5t hay \u0111\u01b0\u1ee3c d\u00f9ng trong PHP m\u00e0 ch\u1ee7 y\u1ebfu l\u00e0 \u0111i k\u00e8m v\u1edbi c\u00e1c h\u00e0m \u0111i\u1ec1u ki\u1ec7n (v\u00ed d\u1ee5 nh\u01b0 if). N\u1ebfu bi\u1ebft ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c, b\u1ea1n s\u1ebd th\u1ea5y t\u1ea7m quan tr\u1ecdng v\u00e0 ph\u1ed5 bi\u1ebfn c\u1ee7a &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/\" \/>\n<meta property=\"og:site_name\" content=\"Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/anhducnguyen87\/\" \/>\n<meta property=\"article:published_time\" content=\"2013-08-23T08:03:00+00:00\" \/>\n<meta name=\"author\" content=\"Nguy\u1ec5n \u0110\u1ee9c Anh\" \/>\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=\"Nguy\u1ec5n \u0110\u1ee9c Anh\" \/>\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<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"To\u00e1n t\u1eed so s\u00e1nh v\u00e0 to\u00e1n t\u1eed logic trong PHP &#8226; 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\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/","og_locale":"vi_VN","og_type":"article","og_title":"To\u00e1n t\u1eed so s\u00e1nh v\u00e0 to\u00e1n t\u1eed logic trong PHP &#8226; Ki\u1ebfn c\u00e0ng","og_description":"H\u00f4m nay Ki\u1ebfn c\u00e0ng s\u1ebd c\u00f9ng b\u1ea1n t\u00ecm hi\u1ec3u c\u00e1c to\u00e1n t\u1eed so s\u00e1nh v\u00e0 logic v\u1ed1n r\u1ea5t hay \u0111\u01b0\u1ee3c d\u00f9ng trong PHP m\u00e0 ch\u1ee7 y\u1ebfu l\u00e0 \u0111i k\u00e8m v\u1edbi c\u00e1c h\u00e0m \u0111i\u1ec1u ki\u1ec7n (v\u00ed d\u1ee5 nh\u01b0 if). N\u1ebfu bi\u1ebft ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c, b\u1ea1n s\u1ebd th\u1ea5y t\u1ea7m quan tr\u1ecdng v\u00e0 ph\u1ed5 bi\u1ebfn c\u1ee7a &hellip;","og_url":"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/","og_site_name":"Ki\u1ebfn c\u00e0ng","article_author":"https:\/\/www.facebook.com\/anhducnguyen87\/","article_published_time":"2013-08-23T08:03:00+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":"3 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/","url":"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/","name":"To\u00e1n t\u1eed so s\u00e1nh v\u00e0 to\u00e1n t\u1eed logic trong PHP &#8226; Ki\u1ebfn c\u00e0ng","isPartOf":{"@id":"https:\/\/kiencang.net\/#website"},"datePublished":"2013-08-23T08:03:00+00:00","dateModified":"2013-08-23T08:03:00+00:00","author":{"@id":"https:\/\/kiencang.net\/#\/schema\/person\/5e7e1a04d8d1218ad8c421ba43d25c16"},"breadcrumb":{"@id":"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/kiencang.net\/toan-tu-so-sanh-va-toan-tu-logic-trong-php\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/kiencang.net\/"},{"@type":"ListItem","position":2,"name":"To\u00e1n t\u1eed so s\u00e1nh v\u00e0 to\u00e1n t\u1eed logic trong PHP"}]},{"@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\/12408"}],"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=12408"}],"version-history":[{"count":0,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts\/12408\/revisions"}],"wp:attachment":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/media?parent=12408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/categories?post=12408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/tags?post=12408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}