Khuê Trần

Có những đoạn code, câu lệnh mà mình hay phải dùng do vậy mình ghi lại ở bài viết này để khi cần mình mở ra xem, vì thế mà có thể bạn sẽ không tìm thấy gì giúp ích cho bạn ở đây cả!

Regex

#Dot
\.
#Anything
(.*?)
#
\.(.*?)\.

Cài HocVPS Script

curl -sO https://hocvps.com/install && bash install

Sau khi cài đăng nhập với port 2222. Xem cập nhật tại đây.

Cài WordPress

Nếu lần đầu cài WordPress trên VPS cần chạy đoạn code sau:

curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar
chmod +x wp-cli.phar
sudo mv wp-cli.phar /usr/bin/wp

Lệnh tải mã nguồn WordPress về thư mục cần cài:

wp core download --allow-root

Sau khi tải xong chạy lệnh:

chown -R nginx:nginx /home/www.domain.com/public_html
hoặc
chown -R nginx:nginx /home/*/public_html

Xóa thư mục

rm -rf mydir

Zip các file

zip -r file *

Test và restart nginx

nginx -t
service nginx restart

Chặn truy cập IP

server {
listen 80 default_server;
server_name _; # some invalid name that won't match anything
return 444;
}

Thêm Alias IP Centos

Copy file mẫu:

cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0:0

Sửa file:

/etc/sysconfig/network-scripts/ifcfg-eth0:0

Nội dung file:

DEVICE="eth0:0"
ONBOOT="yes"
BOOTPROTO="static"
IPADDR="IP_FAILOVER"
NETMASK="255.255.255.255"
BROADCAST="IP_FAILOVER"

Restart và reboot:

ifup eth0:0
reboot

www hoặc non-www

#www to non-www
server {
listen 80;
server_name www.domain.com;
return 301 $scheme://domain.com$request_uri;
}
#non-www to www
server {
listen 80;
server_name domain.com;
return 301 $scheme://www.domain.com$request_uri;
}

Bỏ file index.html hoặc index.php khỏi URL

server_name domain.com;
if ($request_uri ~ "/(index|index.(php|html?))") { 
rewrite ^ /$1 permanent; 
}

Bỏ đuôi .html

server_name domain.com;
if ($request_uri ~ "/(index|index.(php|html?))") { 
rewrite ^ /$1 permanent; 
}
if ($uri !~ /index\.html$) {
rewrite ^(/.+)\.html$ $scheme://$host$1 permanent;
}

Redirect trang 404

server_name www.domain.com;
error_page 404 = @my404;
location @my404 {
return 301 /;
}

Redirect URL

server_name www.domain.com;
rewrite ^/sample-url/$ https://domain.com/another-url/ permanent;
#Redirect các url chung folder
server_name www.domain.com;
location ~ ^/folder-folder/(.*)$ {
return 301 https://domain.com/;
}
#Redirect các url chung đuôi .html
server_name www.domain.com;
rewrite ^(/.+)\.html$ https://domain.com/ permanent;

Cloudflare Wildcard Redirect

*domain.com/* => https://anotherdomain.com/$2
#hoặc
*domain.com/* => https://www.anotherdomain.com/$2
#hoặc
https://domain.com/* => https://anotherdomain.com/$1
#hoặc
*domain.com/* => https://$1anotherdomain.com/$2
# $1 tương ứng với * thứ nhất và $2 tương ứng với * thứ 2 và tương tự.

Thêm site mới LAMP

mkdir -p /var/www/domain.com/public_html
mkdir -p /var/www/domain.com/log
chown -R www-data:www-data /var/www/domain.com
cp /etc/apache2/sites-available/default.com.conf /etc/apache2/sites-available/domain.com.conf
a2ensite domain.com
service apache2 reload

PHP

//single
<?php
if (( is_single()))
{ ?>
<div style="text-align:center;">
...
</div>
<?php }
?>
//theo template
if (( !is_page_template( 'page_landing.php' ) ))
//front page
if ((is_front_page() ))
//
if (( is_front_page() || is_single()))
//
if (( is_single() && !is_single(1561)))

Xenforo

<xen:if is="!in_array({$contentTemplate}, array('message_page', 'error', 'search_form', 'search_form_post', 'search_form_profile_post', 'search_results', 'register_form', 'login', 'error_with_login', 'contact', 'moderation_queue_list', 'report_list'))">
#html
</xen:if>
<xen:if is="in_array({$contentTemplate}, array('forum_list', 'thread_view'))">
#html
</xen:if>
<xen:if is="{$contentTemplate} == 'forum_list'">
#html
</xen:if>

Footer Genesis

add_shortcode( 'sitename', 'site_name' );
function site_name() {
return '<a href="' . get_bloginfo( 'url' ) . '" title="' . get_bloginfo( 'sitename' ) . '">' . get_bloginfo( 'name' ) . '</a>';
}
add_filter('genesis_footer_creds_text', 'sp_footer_creds_filter');
function sp_footer_creds_filter( $creds ) {
$creds = '© 2018 &middot; [sitename] &middot; <a href="/about/">About</a>';
return $creds;
}

Thumbnail Genesis

add_image_size( 'thumb65', 65, 65, TRUE );

Thêm Related Post (Radom) sau đoạn đầu bài viết

//* Hiển thị random post trong bài viết
//* Tạo shortcode
function wpb_rand_posts() { 
$args = array(
'post_type' => 'post',
'orderby' => 'rand',
'posts_per_page' => 3, 
);
$the_query = new WP_Query( $args );
if ( $the_query->have_posts() ) {
$string .= '<ul>';
while ( $the_query->have_posts() ) {
$the_query->the_post();
$string .= '<li><a href="'. get_permalink() .'">'. get_the_title() .'</a></li>';
}
$string .= '</ul>';
/* Restore original Post Data */
wp_reset_postdata();
} else {
$string .= 'no posts found';
}
return $string; 
} 
add_shortcode('wpb-random-posts','wpb_rand_posts');
add_filter('widget_text', 'do_shortcode');
//Hiển thị shortcode sau đoạn đầu tiên trong bài viết
add_filter( 'the_content', 'prefix_insert_post_ads' );
function prefix_insert_post_ads( $content ) {
$ad_code = '<div class="see-also"><p>See also:</p>[wpb-random-posts]</div>';
if ( is_single() && ! is_admin() ) {
return prefix_insert_after_paragraph( $ad_code, 1, $content );
}
//Nếu muốn hiển thị post ở sau đoạn 2, 3,.. thì sửa 1 thành 2,3,...
return $content;
}
// Parent Function
function prefix_insert_after_paragraph( $insertion, $paragraph_id, $content ) {
$closing_p = '</p>';
$paragraphs = explode( $closing_p, $content );
foreach ($paragraphs as $index => $paragraph) {
if ( trim( $paragraph ) ) {
$paragraphs[$index] .= $closing_p;
}
if ( $paragraph_id == $index + 1 ) {
$paragraphs[$index] .= $insertion;
}
}
return implode( '', $paragraphs );
}
// Nếu muốn hiển thị ở trước đoạn cuối cùng thì thay từ chỗ Hiển thị shortcode thành
function ads_added_above_last_p($text) {
if( is_single() ) :
$ads_text = '<div class="see-also"><p>See also:</p>[wpb-random-posts]</div>';
if($pos1 = strrpos($text, '<p>')){
$text1 = substr($text, 0, $pos1);
$text2 = substr($text, $pos1);
$text = $text1 . $ads_text . $text2;
}
endif;
return $text;
}
add_filter('the_content', 'ads_added_above_last_p');
//CSS
.see-also ul {
font-size: 15px;
font-weight: 700;
margin-left: 30px;
line-height: 1.4;
}
.see-also p {
font-weight: 700;
margin-bottom: 10px;
}

Thêm Related Post by Category sau đoạn đầu bài viết

//Related Post by Category
//Tạo shortcode
function wp_cats_posts() {
// Default arguments
$args = array(
'posts_per_page' => 4, // How many items to display
'post__not_in' => array( get_the_ID() ), // Exclude current post
'no_found_rows' => true, // We don't ned pagination so this speeds up the query
);
// Check for current post category and add tax_query to the query arguments
$cats = wp_get_post_terms( get_the_ID(), 'category' ); 
$cats_ids = array(); 
foreach( $cats as $wpex_related_cat ) {
$cats_ids[] = $wpex_related_cat->term_id; 
}
if ( ! empty( $cats_ids ) ) {
$args['category__in'] = $cats_ids;
}
// Query posts
$wpex_query = new wp_query( $args );
if ( $wpex_query->have_posts() ) {
$string .= '<ul>';
while ( $wpex_query->have_posts() ) {
$wpex_query->the_post();
$string .= '<li><a href="'. get_permalink() .'">'. get_the_title() .'</a></li>';
}
$string .= '</ul>';
/* Restore original Post Data */
wp_reset_postdata();
} else {
$string .= 'no posts found';
}
return $string;
}
add_shortcode('wp-cats-posts','wp_cats_posts');
add_filter('widget_text', 'do_shortcode');

//Insert ads after first paragraph of single post content.
add_filter( 'the_content', 'prefix_insert_post_ads' );
function prefix_insert_post_ads( $content ) {
$ad_code = '<div class="see-also"><p>See also:</p>[wp-cats-posts]</div>';
if ( is_single() && ! is_admin() ) {
return prefix_insert_after_paragraph( $ad_code, 1, $content );
}
return $content;
}
// Parent Function that makes the magic happen
function prefix_insert_after_paragraph( $insertion, $paragraph_id, $content ) {
$closing_p = '</p>';
$paragraphs = explode( $closing_p, $content );
foreach ($paragraphs as $index => $paragraph) {
if ( trim( $paragraph ) ) {
$paragraphs[$index] .= $closing_p;
}
if ( $paragraph_id == $index + 1 ) {
$paragraphs[$index] .= $insertion;
}
}
return implode( '', $paragraphs );
}

Noindex Subpage Genesis

/*Add noindex to low value pages*/
function add_noindex_tags(){
# Get page number for paginated archives.
$paged = intval( get_query_var( 'paged' ) );
# Add noindex tag to homepage paginated pages. 
if(( is_home() || is_front_page() ) && $paged >= 2 )
echo '<meta name="robots" content="noindex,follow">';
}
add_action('wp_head','add_noindex_tags', 4 );

Đổi author link

add_filter( 'author_link', 'my_author_link' );
function my_author_link() {
return home_url( 'about' );
}

Liên hệ

Code

Regex

Cài HocVPS Script

Cài WordPress

Xóa thư mục

Zip các file

Test và restart nginx

Chặn truy cập IP

Thêm Alias IP Centos

www hoặc non-www

Bỏ file index.html hoặc index.php khỏi URL

Bỏ đuôi .html

Redirect trang 404

Redirect URL

Cloudflare Wildcard Redirect

Thêm site mới LAMP

PHP

Xenforo

Footer Genesis

Thumbnail Genesis

Thêm Related Post (Radom) sau đoạn đầu bài viết

Thêm Related Post by Category sau đoạn đầu bài viết

Noindex Subpage Genesis

Đổi author link

Leave a Reply Cancel reply

Liên hệ

Regex

Cài HocVPS Script

Cài WordPress

Xóa thư mục

Zip các file

Test và restart nginx

Chặn truy cập IP

Thêm Alias IP Centos

www hoặc non-www

Bỏ file index.html hoặc index.php khỏi URL

Bỏ đuôi .html

Redirect trang 404

Redirect URL

Cloudflare Wildcard Redirect

Thêm site mới LAMP

PHP

Xenforo

Footer Genesis

Thumbnail Genesis

Thêm Related Post (Radom) sau đoạn đầu bài viết

Thêm Related Post by Category sau đoạn đầu bài viết

Noindex Subpage Genesis

Đổi author link

Reader Interactions

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