Emmet using demonstration 

Basics of emmet …

  Build URL query in WordPress based on an associative array 

Creating URL using PHP associative array …

  Use RegEx to extract URLs from arbitrary content 

Extracting all links from text content …

  Disable xml-rpc in WordPress 

Disabling the XML-RPC API on a WordPress site running 3.5 or above. …

  .htaccess 301 redirect 

If you changed a post permalink and you want to let old one works fine, in your WordPress site .htaccess file add next line:

Where ‘/about’ is old relative URL and ‘http://example.com/about-me’ new URL  

  Create array containing variables and their values 

If its necessary pass to the function a lot of variables – its possible compact them into associative array by next function …

  Memory and time limits for wordpress 

Using next code in wp-config.php file is possible to allow WordPress use more memory for its processes and increase the process performance time:

  How to properly strip all HTML tags including script and style 

If its necessary to clean all HTML tags and JS scripts from any content next PHP function will do the job …

  How to remove specific element from JavaScript array? 

Using JavaScript function ‘splice’ for removing items from JavaScript array …