My Online Code Regerence

  Date formating in sitemap.xml file for SEO:     The 'lastmod' element has to be of the format YYYY-MM-DD or YYYY-MM-DDThh:mmTZD so use: gmdate( 'Y-m-d' , strtotime($row[ 'modified' ][ 'value' ])) or gmdate( 'Y-m-d\TH:i:s+00:00' , strtotime($row[ 'modified' ][ 'value' ]))

                                                              OOP-PHP      1:config.php     store all the db related info uder this file as constant:      <?php define ( "DB_HOST" , "ecom.loc" ); define ( "DB_USER" , "root" ); define ( "DB_PASS" , "" ); define ( "DB_NAME" , "phptest" ); ? > 2: Database.php create a class with suitable name  and initialize the connection from the database with oop mysqli. and make a function for selecting the data from the database. <?php class Database { //database configuration variables public $host = DB_HOST ; public $user = DB_USER ; public $pass = DB_PASS ; public $dbname = DB_NAME ; //connection and error variables public ...

                                                            Preparation Test      date : 28/09/2020    CSS :      1: Explain the CSS “box model” and the layout components that it consists of.             Provide some usage examples.      The CSS box model is a rectangular layout paradigm for HTML elements that consists of the following: Content - The content of the box, where text and images appear Padding - A transparent area surrounding the content (i.e., the amount of space between the border and the content) Border - A border surrounding the padding (if any) and content Margin - A transparent area surrounding the border (i.e., the amount of space between the border and any neighboring elements) Each of t...

  Whats in the module :         What is Express.js :   Installing Express.js: To install the expressjs into your app , you have to run - npm install --save express Adding Middleware:   example :       const http = require ( 'http' ); const express = require ( 'express' ); const app = express (); app . use (( req , res , next ) => { console . log ( 'In the middleware!' ); next ();//Allow the request  to continue to the next middleware in line }); app . use (( req , res , next ) => { console . log ( 'In another middleware!' ); }) const server = http . createServer ( app )//app is act As a valid request handler. //listening to a port for request server . listen ( 3000 ); console . log ( 'listening to port 3000' );     Handling Different Routes :                           const express = require ( 'ex...