Tutorial by Examples: n

Code echo get_permalink( 44 ); Output The link of the post id:44, for example: http://website.com/category/name-of-post/

Code echo get_permalink( 44 , false ); Output The link of the post id:44 without the name of the post, for example: http://website.com/category/%postname%/

To get OAuth2 access token simply do curl https://login.salesforce.com/services/oauth2/token -d "grant_type=password" -d "client_id=myclientid" -d "client_secret=myclientsecret" -d "[email protected]" -d "password=mypassword123456" Y...

Code $categories = get_the_category(); foreach( $categories as $category ) { echo $category->name . '<br />'; } Output All names of categories of the current page, one on each line.

Before you can build anything, you are required to make your machine ready for building. For this you need to install a lot of libraries and modules. The most recommended Linux distribution is Ubuntu, so this example will focus on installing everything that is needed on Ubuntu. Installing Java Fir...

Sample Data: CREATE TABLE table_name ( id, list ) AS SELECT 1, 'a,b,c,d' FROM DUAL UNION ALL -- Multiple items in the list SELECT 2, 'e' FROM DUAL UNION ALL -- Single item in the list SELECT 3, NULL FROM DUAL UNION ALL -- NULL list SELECT 4, 'f,,g' FROM DUAL; -- NULL item...

Code the_title( '<h1>', '</h1>' ); Output The title of the current post or page in h1 tags

Use dynamic_cast for converting pointers/references within an inheritance hierarchy. Use static_cast for ordinary type conversions. Use reinterpret_cast for low-level reinterpreting of bit patterns. Use with extreme caution. Use const_cast for casting away const/volatile. Avoid this unless you ar...

Code <picture> <source media="(min-width: 600px)" srcset="large_image.jpg"> <source media="(min-width: 450px)" srcset="small_image.jpg"> <img src="default_image.jpg" style="width:auto;"> </picture> ...

Code function add_new_style() { add_editor_style( 'file-name-here.css' ); } add_action( 'admin_init', 'add_new_style' ); Explanation In the above code, we used add_editor_style to load the css file. We also used add_action to make sure that WordPress runs our function.

add_theme_support( 'post-formats', array( 'formatone', 'formattwo' ) );

add_theme_support( 'post-thumbnails', array( 'post' ) ); The above code only allows post thumnails on all posts. To enable the feature on all post types, do: add_theme_support( 'post-thumbnails' );

In mathematics, especially Set Theory, we have a collection of things which is called set and we name those things as elements. We show a set with its name like A, B, C, ... or explicitly with putting its member on brace notation: {a, b, c, d, e}. Suppose we have an arbitrary element x and a set Z, ...

Create enum of custom errors enum RegistrationError: Error { case invalidEmail case invalidPassword case invalidPhoneNumber } Create extension of RegistrationError to handle the Localized description. extension RegistrationError: LocalizedError { public var errorDescription...

Return JSON formated response: use Symfony\Component\HttpFoundation\JsonResponse; public function someAction(){ // Action's code $data = array( // Array data ); return new JsonResponse($data); }

Type Families are not necessarily injective. Therefore, we cannot infer the parameter from an application. For example, in servant, given a type Server a we cannot infer the type a. To solve this problem, we can use Proxy. For example, in servant, the serve function has type ... Proxy a -> Server...

In this example, User Table will have a column that references the Agency table. CREATE TABLE agencies ( -- first create the agency table id SERIAL PRIMARY KEY, name TEXT NOT NULL ) CREATE TABLE users ( id SERIAL PRIMARY KEY, agency_id NOT NULL INTEGER REFERENCES agencies(id) DEFERR...

Sometimes, we want some fields in the JSON string to be optional. For example, data Person = Person { firstName :: Text , lastName :: Text , age :: Maybe Int } This can be achieved by import Data.Aeson.TH $(deriveJSON ...

The expiration values of a key can be managed by a user outside of the update commands. Redis allows a user to determine the current time to live (TTL) of a key using the TTL command: TTL key This command will return the TTL of a key in seconds or will return the special values -1 or -2. A -1 ...

wire d = 1'bx; // say from previous block. Will be 1 or 0 in hardware if (d == 1'b) // false in simulation. May be true of false in hardware