{"id":119620,"date":"2025-09-30T09:00:00","date_gmt":"2025-09-30T02:00:00","guid":{"rendered":"https:\/\/tino.vn\/blog\/?p=119620"},"modified":"2026-01-02T18:08:19","modified_gmt":"2026-01-02T11:08:19","slug":"sua-loi-upload-max-filesize-trong-wordpress","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/sua-loi-upload-max-filesize-trong-wordpress\/","title":{"rendered":"C\u00e1ch s\u1eeda l\u1ed7i upload_max_filesize trong WordPress [2026]"},"content":{"rendered":"\n<p><strong>L\u1ed7i &#8220;upload_max_filesize&#8221; trong <a href=\"https:\/\/tino.vn\/blog\/wordpress-la-gi\/\" data-type=\"post\" data-id=\"15589\" target=\"_blank\" rel=\"noreferrer noopener\">WordPress<\/a> l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn khi b\u1ea1n c\u1ed1 g\u1eafng t\u1ea3i l\u00ean m\u1ed9t t\u1ec7p c\u00f3 k\u00edch th\u01b0\u1edbc v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n cho ph\u00e9p c\u1ee7a m\u00e1y ch\u1ee7. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y kh\u00f3 kh\u0103n khi b\u1ea1n c\u1ea7n t\u1ea3i l\u00ean c\u00e1c t\u1ec7p media l\u1edbn, theme ho\u1eb7c plugin quan tr\u1ecdng. V\u1eady nguy\u00ean nh\u00e2n c\u1ee7a l\u1ed7i n\u00e0y l\u00e0 g\u00ec? C\u00f9ng Tino t\u00ecm hi\u1ec3u m\u1ed9t s\u1ed1 c\u00e1ch s\u1eeda l\u1ed7i upload_max_filesize trong WordPress \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9!<\/strong><\/p>\n\n\n\n<h2 id=\"L\u1ed7i_upload_max_filesize_trong_WordPress_l\u00e0_g\u00ec?\"><a id=\"post-119620-_h20ho32zghlw\"><\/a>L\u1ed7i upload_max_filesize trong WordPress l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p>L\u1ed7i &#8220;upload_max_filesize&#8221; trong WordPress x\u1ea3y ra khi b\u1ea1n c\u1ed1 g\u1eafng t\u1ea3i l\u00ean m\u1ed9t file c\u00f3 dung l\u01b0\u1ee3ng v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n cho ph\u00e9p \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp b\u1edfi m\u00e1y ch\u1ee7 ho\u1eb7c c\u1ea5u h\u00ecnh <a href=\"https:\/\/tino.vn\/blog\/docs\/thay-doi-phien-ban-php-tren-hosting\/\" target=\"_blank\" data-type=\"ht_kb\" data-id=\"71000\" rel=\"noreferrer noopener\">PHP <\/a>c\u1ee7a website. \u0110\u00e2y l\u00e0 m\u1ed9t th\u00f4ng b\u00e1o ph\u1ed5 bi\u1ebfn khi b\u1ea1n upload c\u00e1c file media (nh\u01b0 h\u00ecnh \u1ea3nh, video), c\u00e0i \u0111\u1eb7t plugin ho\u1eb7c theme c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n m\u1ee9c quy \u0111\u1ecbnh m\u1eb7c \u0111\u1ecbnh.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-1.png\" alt=\"L\u1ed7i &quot;upload_max_filesize &quot; trong WordPress l\u00e0 g\u00ec?\" class=\"wp-image-119624\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-1.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-1-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>L\u1ed7i &#8220;upload_max_filesize &#8221; trong WordPress l\u00e0 g\u00ec?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Th\u00f4ng th\u01b0\u1eddng, gi\u1edbi h\u1ea1n n\u00e0y \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi tham s\u1ed1 upload_max_filesize trong file c\u1ea5u h\u00ecnh PHP. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh ph\u00f9 h\u1ee3p, l\u1ed7i s\u1ebd ng\u0103n ch\u1eb7n vi\u1ec7c t\u1ea3i l\u00ean th\u00e0nh c\u00f4ng. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 g\u00e2y kh\u00f3 kh\u0103n trong qu\u00e1 tr\u00ecnh qu\u1ea3n l\u00fd website m\u00e0 c\u00f2n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 l\u00e0m vi\u1ec7c, \u0111\u1eb7c bi\u1ec7t khi b\u1ea1n c\u1ea7n x\u1eed l\u00fd c\u00e1c file c\u00f3 dung l\u01b0\u1ee3ng l\u1edbn.<\/p>\n\n\n\n<h3 id=\"Nguy\u00ean_nh\u00e2n_ch\u00ednh_g\u00e2y_ra_l\u1ed7i_&#8220;upload_max_filesize&#8221;_trong_WordPress\"><a id=\"post-119620-_vi6o7fvkcgh5\"><\/a><strong>Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra l\u1ed7i &#8220;upload_max_filesize&#8221; trong WordPress<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gi\u1edbi h\u1ea1n m\u1eb7c \u0111\u1ecbnh c\u1ee7a m\u00e1y ch\u1ee7 hosting: <\/strong>H\u1ea7u h\u1ebft c\u00e1c <a href=\"https:\/\/tino.vn\/business-hosting?php=1596\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/tino.vn\/business-hosting?php=1596\" rel=\"noreferrer noopener\">nh\u00e0 cung c\u1ea5p hosting<\/a> \u0111\u1ec1u thi\u1ebft l\u1eadp gi\u1edbi h\u1ea1n upload_max_filesize \u1edf m\u1ee9c m\u1eb7c \u0111\u1ecbnh \u0111\u1ec3 t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t m\u00e1y ch\u1ee7 v\u00e0 ng\u0103n ch\u1eb7n vi\u1ec7c t\u1ea3i l\u00ean c\u00e1c file qu\u00e1 l\u1edbn. N\u1ebfu dung l\u01b0\u1ee3ng file b\u1ea1n mu\u1ed1n t\u1ea3i l\u00ean v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n n\u00e0y, l\u1ed7i s\u1ebd xu\u1ea5t hi\u1ec7n.<\/li>\n\n\n\n<li><strong>C\u1ea5u h\u00ecnh PHP ch\u01b0a \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u:<\/strong> File c\u1ea5u h\u00ecnh PHP (php.ini) qu\u1ea3n l\u00fd nhi\u1ec1u th\u00f4ng s\u1ed1 quan tr\u1ecdng. N\u1ebfu c\u00e1c tham s\u1ed1 n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u00fang c\u00e1ch ho\u1eb7c v\u1eabn gi\u1eef gi\u00e1 tr\u1ecb m\u1eb7c \u0111\u1ecbnh th\u1ea5p, l\u1ed7i s\u1ebd x\u1ea3y ra khi b\u1ea1n c\u1ed1 g\u1eafng upload file v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n.<\/li>\n\n\n\n<li><strong>Plugin ho\u1eb7c theme kh\u00f4ng t\u01b0\u01a1ng th\u00edch:<\/strong> M\u1ed9t s\u1ed1 plugin ho\u1eb7c theme c\u00f3 th\u1ec3 y\u00eau c\u1ea7u t\u1ea3i l\u00ean c\u00e1c file c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n gi\u1edbi h\u1ea1n. N\u1ebfu plugin\/theme kh\u00f4ng t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh c\u1ea5u h\u00ecnh PHP ho\u1eb7c kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1edbi thi\u1ebft l\u1eadp hi\u1ec7n t\u1ea1i, l\u1ed7i &#8220;upload_max_filesize&#8221; c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n.<\/li>\n\n\n\n<li><strong>Sai s\u00f3t trong qu\u00e1 tr\u00ecnh ch\u1ec9nh s\u1eeda c\u1ea5u h\u00ecnh:<\/strong> N\u1ebfu b\u1ea1n \u0111\u00e3 t\u1eebng ch\u1ec9nh s\u1eeda c\u00e1c file c\u1ea5u h\u00ecnh nh\u01b0 .htaccess , wp-config.php ho\u1eb7c php.ini, nh\u01b0ng th\u1ef1c hi\u1ec7n kh\u00f4ng ch\u00ednh x\u00e1c ho\u1eb7c th\u00eam sai c\u00fa ph\u00e1p, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra xung \u0111\u1ed9t v\u00e0 l\u00e0m l\u1ed7i &#8220;upload_max_filesize&#8221; xu\u1ea5t hi\u1ec7n.<\/li>\n\n\n\n<li><strong>T\u1ea3i l\u00ean file qu\u00e1 l\u1edbn so v\u1edbi nhu c\u1ea7u th\u1ef1c t\u1ebf: <\/strong>\u0110\u00f4i khi, l\u1ed7i n\u00e0y x\u1ea3y ra \u0111\u01a1n gi\u1ea3n v\u00ec file b\u1ea1n \u0111ang c\u1ed1 g\u1eafng t\u1ea3i l\u00ean c\u00f3 dung l\u01b0\u1ee3ng qu\u00e1 l\u1edbn so v\u1edbi nhu c\u1ea7u th\u00f4ng th\u01b0\u1eddng c\u1ee7a website.<\/li>\n\n\n\n<li><strong>Xung \u0111\u1ed9t gi\u1eefa c\u00e1c c\u1ea5u h\u00ecnh: <\/strong>Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, c\u00e1c c\u1ea5u h\u00ecnh kh\u00e1c nhau (nh\u01b0 <em>upload_max_filesize<\/em> , <em>post_max_size<\/em> v\u00e0 <em>max_execution_time<\/em>) kh\u00f4ng \u0111\u1ed3ng b\u1ed9 v\u1edbi nhau. V\u00ed d\u1ee5, n\u1ebfu upload_max_filesize \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00e0 64MB nh\u01b0ng post_max_size ch\u1ec9 l\u00e0 32MB, l\u1ed7i v\u1eabn c\u00f3 th\u1ec3 x\u1ea3y ra do xung \u0111\u1ed9t gi\u1eefa c\u00e1c th\u00f4ng s\u1ed1.<\/li>\n\n\n\n<li><strong>S\u1eed d\u1ee5ng phi\u00ean b\u1ea3n PHP c\u0169:<\/strong> C\u00e1c phi\u00ean b\u1ea3n PHP c\u0169 c\u00f3 th\u1ec3 c\u00f3 gi\u1edbi h\u1ea1n m\u1eb7c \u0111\u1ecbnh th\u1ea5p h\u01a1n ho\u1eb7c thi\u1ebfu c\u00e1c t\u00ednh n\u0103ng c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c file l\u1edbn. N\u1ebfu website c\u1ee7a b\u1ea1n \u0111ang ch\u1ea1y tr\u00ean m\u1ed9t phi\u00ean b\u1ea3n PHP l\u1ed7i th\u1eddi, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00f3p ph\u1ea7n g\u00e2y ra l\u1ed7i.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-2.png\" alt=\"Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra l\u1ed7i &quot;upload_max_filesize&quot; trong WordPress\" class=\"wp-image-119625\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-2.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-2-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra l\u1ed7i &#8220;upload_max_filesize&#8221; trong WordPress<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 id=\"H\u01b0\u1edbng_d\u1eabn_s\u1eeda_l\u1ed7i_upload_max_filesize_trong_WordPress\"><a id=\"post-119620-_5qec6cff8ed1\"><\/a>H\u01b0\u1edbng d\u1eabn s\u1eeda l\u1ed7i upload_max_filesize trong WordPress<\/h2>\n\n\n\n<h3 id=\"Ch\u1ec9nh_s\u1eeda_file_.htaccess\"><a id=\"post-119620-_yuzqm06k1r0q\"><\/a><strong>Ch\u1ec9nh s\u1eeda file .htaccess<\/strong><\/h3>\n\n\n\n<p>Gi\u1ea3i ph\u00e1p nhanh nh\u1ea5t \u0111\u1ec3 s\u1eeda l\u1ed7i &#8220;upload_max_filesize&#8221; l\u00e0 t\u0103ng gi\u1edbi h\u1ea1n t\u00e0i nguy\u00ean PHP b\u1eb1ng c\u00e1ch ch\u1ec9nh s\u1eeda file .htaccess. Th\u1ef1c hi\u1ec7n theo c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 1: <\/strong>\u0110\u0103ng nh\u1eadp v\u00e0o <strong>cPanel <\/strong>v\u00e0 truy c\u1eadp <strong>File Manager.<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-3.png\" alt=\"Ch\u1ec9nh s\u1eeda file .htaccess\" class=\"wp-image-119626\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-3.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-3-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Ch\u1ec9nh s\u1eeda file .htaccess<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>B\u01b0\u1edbc 2: <\/strong>T\u00ecm file <strong>.htaccess<\/strong> trong th\u01b0 m\u1ee5c <strong>public_html<\/strong>, sau \u0111\u00f3 nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0 ch\u1ecdn<strong> Edit<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-4.png\" alt=\"Ch\u1ec9nh s\u1eeda file .htaccess\" class=\"wp-image-119627\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-4.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-4-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Ch\u1ec9nh s\u1eeda file .htaccess<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>B\u01b0\u1edbc 3: <\/strong>Th\u00eam d\u00f2ng sau v\u00e0o cu\u1ed1i file:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>php_value upload_max_filesize 256M<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-5.png\" alt=\"Ch\u1ec9nh s\u1eeda file .htaccess\" class=\"wp-image-119628\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-5.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-5-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Ch\u1ec9nh s\u1eeda file .htaccess<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>L\u01b0u thay \u0111\u1ed5i v\u00e0 ki\u1ec3m tra l\u1ea1i.<\/p>\n\n\n\n<p>L\u01b0u \u00fd: B\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh gi\u1edbi h\u1ea1n PHP theo gi\u00e1 tr\u1ecb mong mu\u1ed1n, mi\u1ec5n l\u00e0 nh\u00e0 cung c\u1ea5p hosting h\u1ed7 tr\u1ee3. \u0110\u1ec3 ki\u1ec3m tra gi\u1edbi h\u1ea1n t\u1ed1i \u0111a cho ph\u00e9p, h\u00e3y xem th\u00f4ng tin PHP c\u1ee7a website.<\/p>\n\n\n\n<h3 id=\"Ch\u1ec9nh_s\u1eeda_file_wp-config.php\"><a id=\"post-119620-_9n17hroirkx4\"><\/a><strong>Ch\u1ec9nh s\u1eeda file wp-config.php<\/strong><\/h3>\n\n\n\n<p>M\u1ed9t c\u00e1ch kh\u00e1c \u0111\u1ec3 s\u1eeda l\u1ed7i &#8220;upload_max_filesize&#8221; l\u00e0 ch\u1ec9nh s\u1eeda file wp-config.php, n\u1eb1m trong th\u01b0 m\u1ee5c g\u1ed1c c\u1ee7a website.<\/p>\n\n\n\n<p>Th\u1ef1c hi\u1ec7n nh\u01b0 sau:<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 1: <\/strong>\u0110\u0103ng nh\u1eadp v\u00e0o <strong>cPanel<\/strong> -&gt; <strong>File Manage<\/strong>r v\u00e0o th\u01b0 m\u1ee5c <strong>public_html<\/strong>, t\u00ecm file <strong>wp-config.php<\/strong> v\u00e0 ch\u1ecdn <strong>Edit<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-6.png\" alt=\"Ch\u1ec9nh s\u1eeda file wp-config.php\" class=\"wp-image-119629\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-6.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-6-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Ch\u1ec9nh s\u1eeda file wp-config.php<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>B\u01b0\u1edbc 2: <\/strong>Th\u00eam d\u00f2ng sau v\u00e0o tr\u01b0\u1edbc d\u00f2ng &#8220;<strong>That&#8217;s all, stop editing! Happy publishing<\/strong>&#8220;:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@ini_set('upload_max_size' , '256M' );<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-7.png\" alt=\"Ch\u1ec9nh s\u1eeda file wp-config.php\" class=\"wp-image-119630\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-7.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-7-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Ch\u1ec9nh s\u1eeda file wp-config.php<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>L\u01b0u file, l\u00e0m m\u1edbi tr\u00ecnh duy\u1ec7t v\u00e0 th\u1eed t\u1ea3i l\u1ea1i file.<\/p>\n\n\n\n<h3 id=\"C\u1eadp_nh\u1eadt_php.ini_\u0111\u1ec3_s\u1eeda_l\u1ed7i_&#8220;upload_max_filesize&#8221;_\"><a id=\"post-119620-_qx8hubj2vfgl\"><\/a><strong>C\u1eadp nh\u1eadt php.ini \u0111\u1ec3 s\u1eeda l\u1ed7i &#8220;upload_max_filesize&#8221; <\/strong><\/h3>\n\n\n\n<p><strong>B\u01b0\u1edbc 1: <\/strong>\u0110\u0103ng nh\u1eadp v\u00e0o<strong> cPanel<\/strong> -&gt; <strong>File Manager<\/strong> v\u00e0o th\u01b0 m\u1ee5c <strong>public_html<\/strong> v\u00e0 t\u00ecm file <strong>php.ini<\/strong>. N\u1ebfu kh\u00f4ng t\u00ecm th\u1ea5y, h\u00e3y li\u00ean h\u1ec7 v\u1edbi nh\u00e0 cung c\u1ea5p hosting \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-8.png\" alt=\"C\u1eadp nh\u1eadt php.ini \u0111\u1ec3 s\u1eeda l\u1ed7i &quot;upload_max_filesize&quot; \" class=\"wp-image-119631\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-8.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-8-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>C\u1eadp nh\u1eadt php.ini \u0111\u1ec3 s\u1eeda l\u1ed7i &#8220;upload_max_filesize&#8221; <\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>B\u01b0\u1edbc 2:<\/strong> T\u00ecm d\u00f2ng <strong>upload_max_filesize<\/strong> v\u00e0 t\u0103ng gi\u1edbi h\u1ea1n b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i gi\u00e1 tr\u1ecb nh\u01b0 sau:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>upload_max_filesize = 256M\n\npost_max_size = 256M\n\nmemory_limit = 512M\n\nmax_execution_time = 180<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-9.png\" alt=\"C\u1eadp nh\u1eadt php.ini \u0111\u1ec3 s\u1eeda l\u1ed7i &quot;upload_max_filesize&quot; \" class=\"wp-image-119632\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-9.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-9-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>C\u1eadp nh\u1eadt php.ini \u0111\u1ec3 s\u1eeda l\u1ed7i &#8220;upload_max_filesize&#8221; <\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>L\u01b0u file v\u00e0 th\u1eed t\u1ea3i l\u1ea1i file l\u00ean WordPress.<\/p>\n\n\n\n<h3 id=\"Ch\u1ec9nh_s\u1eeda_c\u1ea5u_h\u00ecnh_PHP_tr\u00ean_cPanel\"><a id=\"post-119620-_n7kf5idwmdi4\"><\/a><strong>Ch\u1ec9nh s\u1eeda c\u1ea5u h\u00ecnh PHP tr\u00ean cPanel<\/strong><\/h3>\n\n\n\n<p>N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng hosting c\u1ee7a Tino, b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng thay \u0111\u1ed5i c\u1ea5u h\u00ecnh PHP th\u00f4ng qua c\u00f4ng c\u1ee5 PHP Select Version trong cPanel.<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 1:<\/strong> \u0110\u0103ng nh\u1eadp v\u00e0o cPanel v\u00e0 truy c\u1eadp <strong>PHP Select Version<\/strong> trong m\u1ee5c <strong>Software<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-10.png\" alt=\"Ch\u1ec9nh s\u1eeda c\u1ea5u h\u00ecnh PHP tr\u00ean cPanel\" class=\"wp-image-119633\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-10.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-10-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Ch\u1ec9nh s\u1eeda c\u1ea5u h\u00ecnh PHP tr\u00ean cPanel<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>B\u01b0\u1edbc 2:<\/strong> Chuy\u1ec3n sang tab <strong>PHP Options <\/strong>v\u00e0 t\u00ecm d\u00f2ng <strong>upload_max_filesize.<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-11.png\" alt=\"Ch\u1ec9nh s\u1eeda c\u1ea5u h\u00ecnh PHP tr\u00ean cPanel\" class=\"wp-image-119634\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-11.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-11-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Ch\u1ec9nh s\u1eeda c\u1ea5u h\u00ecnh PHP tr\u00ean cPanel<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Thay \u0111\u1ed5i gi\u00e1 tr\u1ecb theo nhu c\u1ea7u, sau \u0111\u00f3 l\u01b0u l\u1ea1i.<\/p>\n\n\n\n<h3 id=\"\u0110\u1ed5i_phi\u00ean_b\u1ea3n_PHP\"><a id=\"post-119620-_35qk424r9f49\"><\/a><strong>\u0110\u1ed5i phi\u00ean b\u1ea3n PHP<\/strong><\/h3>\n\n\n\n<p><strong>B\u01b0\u1edbc 1:<\/strong> \u0110\u0103ng nh\u1eadp v\u00e0o cPanel v\u00e0 truy c\u1eadp <strong>PHP Select Version<\/strong> trong m\u1ee5c <strong>Software<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-12.png\" alt=\"\u0110\u1ed5i phi\u00ean b\u1ea3n PHP\" class=\"wp-image-119636\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-12.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/09\/sua-loi-upload-max-filesize-12-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>\u0110\u1ed5i phi\u00ean b\u1ea3n PHP<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>B\u01b0\u1edbc 2: <\/strong>Ch\u1ecdn phi\u00ean b\u1ea3n PHP m\u1edbi v\u00e0 th\u1eed t\u1ea3i l\u1ea1i file l\u00ean WordPress.<\/p>\n\n\n\n<h3 id=\"K\u1ebft_lu\u1eadn\"><a id=\"post-119620-_8x4wececi6cg\"><\/a><strong>K\u1ebft lu\u1eadn<\/strong><\/h3>\n\n\n\n<p>L\u1ed7i &#8220;upload_max_filesize&#8221; trong WordPress l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn nh\u01b0ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng kh\u1eafc ph\u1ee5c b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh c\u00e1c file c\u1ea5u h\u00ecnh c\u1ee7a website ho\u1eb7c nh\u1edd s\u1ef1 h\u1ed7 tr\u1ee3 t\u1eeb nh\u00e0 cung c\u1ea5p hosting. B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p trong b\u00e0i vi\u1ebft, b\u1ea1n c\u00f3 th\u1ec3 t\u0103ng gi\u1edbi h\u1ea1n t\u1ea3i l\u00ean v\u00e0 ti\u1ebfp t\u1ee5c l\u00e0m vi\u1ec7c v\u1edbi WordPress m\u00e0 kh\u00f4ng g\u1eb7p tr\u1edf ng\u1ea1i.<\/p>\n\n\n\n<h2 id=\"Nh\u1eefng_c\u00e2u_h\u1ecfi_th\u01b0\u1eddng_g\u1eb7p\"><a id=\"post-119620-_qqqn8p41zshm\"><\/a>Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"T\u00f4i_\u0111\u00e3_t\u0103ng_upload_max_filesize_nh\u01b0ng_v\u1eabn_g\u1eb7p_l\u1ed7i,_t\u1ea1i_sao?\">T\u00f4i \u0111\u00e3 t\u0103ng upload_max_filesize nh\u01b0ng v\u1eabn g\u1eb7p l\u1ed7i, t\u1ea1i sao?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>M\u1ed9t s\u1ed1 nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hosting kh\u00f4ng cho ph\u00e9p thay \u0111\u1ed5i gi\u1edbi h\u1ea1n PHP tr\u00ean g\u00f3i c\u01b0\u1edbc c\u1ee7a b\u1ea1n. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, h\u00e3y li\u00ean h\u1ec7 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt.<\/li>\n\n\n\n<li>H\u1ec7 th\u1ed1ng cache ch\u01b0a c\u1eadp nh\u1eadt thay \u0111\u1ed5i m\u1edbi. H\u00e3y th\u1eed x\u00f3a cache v\u00e0 ki\u1ec3m tra l\u1ea1i.<\/li>\n\n\n\n<li>M\u00e1y ch\u1ee7 c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i \u0111\u1ec3 \u00e1p d\u1ee5ng c\u00e1c thay \u0111\u1ed5i.<\/li>\n<\/ul>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"L\u1ed7i_n\u00e0y_c\u00f3_th\u1ec3_g\u00e2y_m\u1ea5t_d\u1eef_li\u1ec7u_kh\u00f4ng?\">L\u1ed7i n\u00e0y c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t d\u1eef li\u1ec7u kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Kh\u00f4ng. L\u1ed7i n\u00e0y ch\u1ec9 ng\u0103n ch\u1eb7n vi\u1ec7c t\u1ea3i l\u00ean file v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n v\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn d\u1eef li\u1ec7u hi\u1ec7n c\u00f3 tr\u00ean website. Tuy nhi\u00ean, n\u1ebfu b\u1ea1n \u0111ang t\u1ea3i l\u00ean m\u1ed9t file quan tr\u1ecdng, h\u00e3y \u0111\u1ea3m b\u1ea3o sao l\u01b0u d\u1eef li\u1ec7u tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"L\u1ed7i_n\u00e0y_c\u00f3_\u1ea3nh_h\u01b0\u1edfng_\u0111\u1ebfn_t\u1ed1c_\u0111\u1ed9_website_kh\u00f4ng?\">L\u1ed7i n\u00e0y c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 website kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Kh\u00f4ng, mi\u1ec5n l\u00e0 b\u1ea1n kh\u00f4ng t\u1ea3i l\u00ean c\u00e1c file qu\u00e1 l\u1edbn ho\u1eb7c kh\u00f4ng c\u1ea7n thi\u1ebft. Tuy nhi\u00ean, n\u1ebfu b\u1ea1n t\u1ea3i l\u00ean nhi\u1ec1u file l\u1edbn, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng th\u1eddi gian t\u1ea3i trang v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. \u0110\u1ec3 tr\u00e1nh v\u1ea5n \u0111\u1ec1 n\u00e0y, h\u00e3y t\u1ed1i \u01b0u h\u00f3a file tr\u01b0\u1edbc khi t\u1ea3i l\u00ean.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"C\u00f3_plugin_n\u00e0o_gi\u00fap_s\u1eeda_l\u1ed7i_n\u00e0y_kh\u00f4ng?\">C\u00f3 plugin n\u00e0o gi\u00fap s\u1eeda l\u1ed7i n\u00e0y kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>C\u00f3, b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng plugin nh\u01b0<a href=\"https:\/\/wordpress.org\/plugins\/wp-maximum-upload-file-size\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/wordpress.org\/plugins\/wp-maximum-upload-file-size\/\" rel=\"noreferrer noopener nofollow\"> Increase Maximum Upload File Size<\/a> \u0111\u1ec3 t\u0103ng gi\u1edbi h\u1ea1n tr\u1ef1c ti\u1ebfp t\u1eeb dashboard WordPress. Tuy nhi\u00ean, plugin ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng n\u1ebfu hosting cho ph\u00e9p thay \u0111\u1ed5i c\u1ea5u h\u00ecnh PHP.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"T\u00f4i \u0111\u00e3 t\u0103ng upload_max_filesize nh\u01b0ng v\u1eabn g\u1eb7p l\u1ed7i, t\u1ea1i sao?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>M\u1ed9t s\u1ed1 nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 l\u00e0:<\/p><ul><li>Hosting kh\u00f4ng cho ph\u00e9p thay \u0111\u1ed5i gi\u1edbi h\u1ea1n PHP tr\u00ean g\u00f3i c\u01b0\u1edbc c\u1ee7a b\u1ea1n. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, h\u00e3y li\u00ean h\u1ec7 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt.<\/li><li>H\u1ec7 th\u1ed1ng cache ch\u01b0a c\u1eadp nh\u1eadt thay \u0111\u1ed5i m\u1edbi. H\u00e3y th\u1eed x\u00f3a cache v\u00e0 ki\u1ec3m tra l\u1ea1i.<\/li><li>M\u00e1y ch\u1ee7 c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i \u0111\u1ec3 \u00e1p d\u1ee5ng c\u00e1c thay \u0111\u1ed5i.<\/li><\/ul>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"L\u1ed7i n\u00e0y c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t d\u1eef li\u1ec7u kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Kh\u00f4ng. L\u1ed7i n\u00e0y ch\u1ec9 ng\u0103n ch\u1eb7n vi\u1ec7c t\u1ea3i l\u00ean file v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n v\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn d\u1eef li\u1ec7u hi\u1ec7n c\u00f3 tr\u00ean website. 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V\u1eady nguy\u00ean nh\u00e2n c\u1ee7a [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":119637,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7382],"tags":[7400],"class_list":["post-119620","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sua-loi-wordpress","tag-sua-loi-wordpress"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/119620","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=119620"}],"version-history":[{"count":2,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/119620\/revisions"}],"predecessor-version":[{"id":122214,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/119620\/revisions\/122214"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/119637"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=119620"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/categories?post=119620"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=119620"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}