Since .htaccess is a hidden system file, please make sure your FTP client is configured to show hidden files. This is usually an option in the program’s preferences/options.

Let’s do these step to create a redirection by .htaccess file.

1. Create an empty text file using a text editor such as notepad, and save it as htaccess.txt.

2. Edit the contents of the file. Check the following examples:

301 (Permanent) Redirect: Point an entire site to a different URL on a permanent basis. This is the most common type of redirect and is useful in most situations. In this example, we are redirecting to the “mt-example.com” domain:

# This allows you to redirect your entire website to any other domain
Redirect 301 / http://mt-example.com/

302 (Temporary) Redirect: Point an entire site to a different temporary URL. This is useful for SEO purposes when you have a temporary landing page and plan to switch back to your main landing page at a later date:

# This allows you to redirect your entire website to any other domain
Redirect 302 / http://mt-example.com/

Redirect index.html to a specific subfolder:

# This allows you to redirect index.html to a specific subfolder
Redirect /index.html http://example.com/newdirectory/

Redirect an old file to a new file path:

# Redirect old file path to new file path
Redirect /olddirectory/oldfile.html http://example.com/newdirectory/newfile.html
Redirect to a specific index page:

# Provide Specific Index Page (Set the default handler)
DirectoryIndex index.html

3. Upload this file and re-name it to .htaccess

MORE POWERFUL URL CHANGES WITH MOD_REWRITE

If you need to make complex changes to the way your URL displays, you should visit Using .htaccess rewrite rules. You can do things like add “www” to the beginning of your URL, redirect all requests to a subfolder but keep the rest of the URL, etc.

The post .htaccess redirection tips appeared first on WP2X.

Redis is an open-source key value store that can operate as both an in-memory store and as cache. Redis is a data structure server that can be used as a database server on its own, or paired with a relational database like MySQL to speed things up, as we’re doing in this tutorial.

Default WordPress home page without Redis:

804ms page load time

Default WordPress home page with Redis:

449ms page load time

Redis vs. Memcached

Memcached is also a popular cache choice. However, at this point, Redis does everything Memcached can do, with a much larger feature set. This Stack Overflow page has some general information as an overview or introduction to persons new to Redis.

Step 1 — Install Redis

In order to use Redis with WordPress, two packages need to be installed: redis-server and php5-redis. The redis-server package provides Redis itself, while the php5-redis package provides a PHP extension for PHP applications like WordPress to communicate with Redis.

Install the softare:

sudo apt-get install redis-server php5-redis

Step 2 — Configure Redis as a Cache

Redis can operate both as a NoSQL database store as well as a cache. For this guide and use case, Redis will be configured as a cache. In order to do this, the following settings are required.

Edit the file /etc/redis/redis.conf and add the following lines at the bottom:

Add these lines at the end of the file:

maxmemory 256mb
maxmemory-policy allkeys-lru

When changes are complete, save and close the file.

Step 3 — Obtain Redis Cache Backend Script

This PHP script for WordPress was originally developed by Eric Mann. It is a Redis object cache backend for WordPress.

Download the object-cache.php script. This download is from DigitalOcean’s asset server, but this is a third-party script. You should read the comments in the script to see how it works.

Download the PHP script:

wget https://assets.digitalocean.com/articles/wordpress_redis/object-cache.php

Move the file to the /wp-content directory of your WordPress installation:

sudo mv object-cache.php /var/www/html/wp-content/

Depending on your WordPress installation, your location may be different.

Step 4 — Enable Cache Settings in wp-config.php

Next, edit the wp-config.php file to add a cache key salt with the name of your site (or any string you would like).

nano /var/www/html/wp-config.php

Add this line at the end of the * Authentication Unique Keys and Salts. section:

define('WP_CACHE_KEY_SALT', 'example.com');

You can use your domain name or another string as the salt.

Note: For users hosting more than one WordPress site, each site can share the same Redis installation as long as it has its own unique cache key salt.

Also, add the following line after the WP_CACHE_KEY_SALT line to create a persistent cache with the Redis object cache plugin:

define('WP_CACHE', true);

All together, your file should look like this:

* Authentication Unique Keys and Salts.

. . .

define('NONCE_SALT', 'put your unique phrase here');

define('WP_CACHE_KEY_SALT', 'example.com');
define('WP_CACHE', true);
Save and close the file.

Step 5 — Restart Redis and Apache

Finally, restart redis-service and apache2.

Restart Redis:

sudo service redis-server restart

Restart Apache:

sudo service apache2 restart

Restart php5-fpm if you are using it; this is not part of the basic installation on DigitalOcean:

sudo service php5-fpm restart

That’s it! Your WordPress site is now using Redis caching. If you check your page load speeds and resource use, you should notice improvements.

Monitor Redis with redis-cli

To monitor Redis, use the redis-cli command like so:

redis-cli monitor

When you run this command, you will see the real-time output of Redis serving cached queries. If you don’t see anything, visit your website and reload a page.

The post Install Redis Caching to Speed Up WordPress on Ubuntu appeared first on WP2X.

Here is simple requirements

The post WordPress Hosting/Server System Requirements appeared first on WP2X.

1. WordPress security with daily backup

No one can guarantee their website is secured 100% so that let ‘s prepare a backup version daily via your hosting plan. Almost hosting service provide daily backup service include files and database. Just one-click to restore if you meet any risk later on. This way will make sure you are safe 100%.

2. Internet activity security

1. Use A Secure Network At Home – If you are using Wifi at your home or office, then I would suggest setting up a private WPA2 network with a strong, randomly-generated name and network passphrase. For additional protection, you can employ “security through obscurity” methods such as enabling MAC Address Filtering.
2. Use An Encrypted VPN Connection Over Public Wifi – Generally speaking, it’s best to never log in to a sensitive area such as your WordPress Dashboard when connected to the internet over public Wifi. If you are using your laptop or phone over a public network, always run your connection through an encrypted VPN and make sure that you are signing in to your website over SSL. You can purchase a VPN from StrongVPN.com.

3. Securing Your Personal Computer

If I can recommend, I recommend you use Linux or Mac to anti virus. In windows I usually meet the key logger software what can’t be detected by any anti virus software. It ‘s a lot of risk if you lose server account and email accounts.

But anyway, if you can’t use Linux or Mac I think you can a good anti virus software like Kaspersky

They are simple but strong to help you in any risk situation. Hope it help!

Welcome any comment.

The post Security tips for WordPress appeared first on WP2X.

In this tutorial we will show you 3 wordpress plugins what can help you reduce the image size but still keep a very good image quality. It will help to speed up the image load and page load.

1. EWWW Image Optimizer

Download: https://wordpress.org/plugins/ewww-image-optimizer/

This is my No. 1 suggestion since it ‘s very easy to use and save time. Even though you got a lot of old images what need to reduce size, it still help you solve that with Bulk feature. Check this screen

The EWWW Image Optimizer is a WordPress plugin that will automatically optimize your images as you upload them to your blog. It can optimize the images that you have already uploaded, convert your images automatically to the file format that will produce the smallest image size (make sure you read the WARNINGS), and optionally apply lossy reductions for PNG and JPG images.

2. WP Smush

Download: https://wordpress.org/plugins/wp-smushit/

WP Smush strips hidden, bulky information from your images, reducing the file size without losing quality. The faster your site loads, the more Google, Bing, Yahoo and other search engines will like it.

Look at this video and you will how it do

3. Kraken Image Optimizer

Download: https://wordpress.org/plugins/kraken-image-optimizer/

This plugin allows you to optimize your WordPress images through the Kraken API, the world’s most advanced image optimization solution.

This plugin allows you to optimize new and existing WordPress image uploads through Kraken Image Optimizer’s API. Both lossless and intelligent lossy optimization modes are supported. Supported filetypes are JPEG, PNG and GIF. Maximum filesize limit is 16 MB.

The post Top 3 Image Optimize WordPress Plugin for SEO appeared first on WP2X.

The function reference you can check more detail here: http://php.net/manual/en/function.shuffle.php

Here is an example for how to randomise elements in PHP array with shuffle

Let ‘s run this code

<?php
    $natural_born_killers = array("lions", "tigers", "bears", "kittens");
    shuffle($natural_born_killers);
    var_dump($natural_born_killers);
?>

Run in many times and try to see the result array, it will show you different result every time you run it.
One major drawback to using shuffle() is that it mangles your array keys. This is unavoidable sadly, and you need to live with it when you use shuffle(). Note that shuffle uses its parameter by reference – it returns true, but shuffles up the parameter you pass to it.

If you want to pick out just one random value from an array, you can use array_rand() – it takes an array to read from, then returns one random key from inside there. The advantage to array_rand() is that it leaves the original array intact – you can use the random key returned to grab the related value from the array, but other than that the original array is left untouched.

Array_rand() has an optional second parameter that allows you to specify the number of elements you would like returned. These are each chosen randomly from the array, and are not necessarily returned in any particular order.

Before I show you an example, you need to be aware of the following attributes of array_rand():

It returns the keys in your array. If these aren’t specified, the default integer indexes are used. To get the value out of the array, just look up the value at the key.

If you ask for one random element, or do not specify parameter two, you will get a standard variable back.

If you ask for more than one random element, you will receive an array of variables back.

If you ask for more random elements than there are in the array you will get an error

Array_rand() will not return duplicate elements if you request more than one random element

If you want to read most or all of the elements from your array in a random order, use a mass-randomiser like shuffle() – it is faster.

With that in mind, here’s an example of array_rand() in action:

<?php
    $natural_born_killers = array("lions", "tigers", "bears", "kittens");
    var_dump(array_rand($natural_born_killers, 2));
?>

The post Randomise elements in PHP array with shuffle appeared first on WP2X.

Here is what we need to do

Input             Output
'2'               2
'2.34'            2.34
'0.3454545'       0.3454545

Now, let ‘s do the magic

$num = "3.14";
$int = (int)$num;
$float = (float)$num;

For more detail you can do like this

1. Cast the strings to numeric primitive data types:

$num = (int) "10";
$num = (double) "10.12"; // same as (float) "10.12";

2. Perform math operations on the strings:

$num = "10" + 1;
$num = floor("10.1");

3. Use intval() or floatval():

$num = intval("10");
$num = floatval("10.1");

I think they are good enough for you to convert string to any number type.

The post Convert a string to a number in PHP appeared first on WP2X.

1. Get the last char of a string in PHP

If you want to get the only one character in a string, here is simplest function to do.

substr("testers", -1); // returns "s"

So simple?

And what if you want 2 characters? Let ‘s do this

substr("testers", -2); // returns "rs"

 2. Remove the last character from string

Just a bonus if this article, if you want to remove the last character in a string. You can do this function

substr("a,b,c,d,e,", 0, -1);

The output is a,b,c,d,e

Hope this article help you solve the problem with string.

Thanks

The post Get last character from string in PHP appeared first on WP2X.

First of all, you can download and install here: https://wordpress.org/plugins/crayon-syntax-highlighter/

A Syntax Highlighter built in PHP and jQuery that supports customizable languages and themes. It can highlight from a URL, a local file or WordPress post text. Crayon makes it easy to manage Language files and define custom language elements with regular expressions. It also supports some neat features like:

• Integrated Theme Editor!
• Tag Editor in both Visual & HTML editors
• Toggled plain code
• Toggled line numbers
• Copy/paste code
• Open code in a new window (popup)
• Line wrapping
• Code expanding
• Minimizing
• bbPress 2 support
• Converting legacy code in blog posts/comments to <pre>
• Remote request caching
• Mixed Language Highlighting in a single Crayon
• Mini Tags like [php][/php]
• Inline Tags floating in sentences
• Crayons in comments
• `Backquotes` become code
• pre tag support, option to use setting-value in the class attribute
• Valid HTML 5 markup
• Visual & HTML editor compatible
• Mobile/touchscreen device detection
• Mouse event interaction (showing plain code on double click, toolbar on mouseover)
• Tab sizes
• Code title
• Toggled toolbar
• Retina buttons
• Striped lines
• Line marking (for important lines)
• Line ranges (showing only parts of the code)
• Starting line number (default is 1)
• Local directory to search for local files
• File extension detection
• Live Preview in settings
• Dimensions, margins, alignment, font-size, line-height, float
• Extensive error logging

The code highlight is very easy to use in back end with the toobar icon and window

And the highlight code will be display in front end like this

The post Crayon Syntax Highlighter WordPress plugin appeared first on WP2X.