Annetta  Robel

Annetta Robel

1598313480

PHP Class Example | Basics Of Class In PHP Tutorial

PHP Class Example | Basics Of Class In PHP Tutorial is today’s topic. Class is a programmer-defined data type, which includes the local functions as well as the local data. You can think of a class as the template for making many instances of the same kind (or class) of the object. OOP is the programming style in which it is necessary to group all of the variables and functions of the particular topic into the single class.

PHP Class Example

In object-oriented programming, a class is a constructor prototype from which objects are created.

The class defines constituent members which enable the class instances to have state and behavior.

Data field members enable the class object to maintain the state and methods enable the class object’s behavior.

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PHP Class Example | Basics Of Class In PHP Tutorial
Lawrence  Lesch

Lawrence Lesch

1662107520

Superdom: Better and Simpler ES6 DOM Manipulation

Superdom

You have dom. It has all the DOM virtually within it. Use that power:

// Fetch all the page links
let links = dom.a.href;

// Links open in a new tab
dom.a.target = '_blank';

Only for modern browsers

Getting started

Simply use the CDN via unpkg.com:

<script src="https://unpkg.com/superdom@1"></script>

Or use npm or bower:

npm|bower install superdom --save

Select

It always returns an array with the matched elements. Get all the elements that match the selector:

// Simple element selector into an array
let allLinks = dom.a;

// Loop straight on the selection
dom.a.forEach(link => { ... });

// Combined selector
let importantLinks = dom['a.important'];

There are also some predetermined elements, such as id, class and attr:

// Select HTML Elements by id:
let main = dom.id.main;

// by class:
let buttons = dom.class.button;

// or by attribute:
let targeted = dom.attr.target;
let targeted = dom.attr['target="_blank"'];

Generate

Use it as a function or a tagged template literal to generate DOM fragments:

// Not a typo; tagged template literals
let link = dom`<a href="https://google.com/">Google</a>`;

// It is the same as
let link = dom('<a href="https://google.com/">Google</a>');

Delete elements

Delete a piece of the DOM

// Delete all of the elements with the class .google
delete dom.class.google;   // Is this an ad-block rule?

Attributes

You can easily manipulate attributes right from the dom node. There are some aliases that share the syntax of the attributes such as html and text (aliases for innerHTML and textContent). There are others that travel through the dom such as parent (alias for parentNode) and children. Finally, class behaves differently as explained below.

Get attributes

The fetching will always return an array with the element for each of the matched nodes (or undefined if not there):

// Retrieve all the urls from the page
let urls = dom.a.href;     // #attr-list
  // ['https://google.com', 'https://facebook.com/', ...]

// Get an array of the h2 contents (alias of innerHTML)
let h2s = dom.h2.html;     // #attr-alias
  // ['Level 2 header', 'Another level 2 header', ...]

// Get whether any of the attributes has the value "_blank"
let hasBlank = dom.class.cta.target._blank;    // #attr-value
  // true/false

You also use these:

  • html (alias of innerHTML): retrieve a list of the htmls
  • text (alias of textContent): retrieve a list of the htmls
  • parent (alias of parentNode): travel up one level
  • children: travel down one level

Set attributes

// Set target="_blank" to all links
dom.a.target = '_blank';     // #attr-set
dom.class.tableofcontents.html = `
  <ul class="tableofcontents">
    ${dom.h2.map(h2 => `
      <li>
        <a href="#${h2.id}">
          ${h2.innerHTML}
        </a>
      </li>
    `).join('')}
  </ul>
`;

Remove an attribute

To delete an attribute use the delete keyword:

// Remove all urls from the page
delete dom.a.href;

// Remove all ids
delete dom.a.id;

Classes

It provides an easy way to manipulate the classes.

Get classes

To retrieve whether a particular class is present or not:

// Get an array with true/false for a single class
let isTest = dom.a.class.test;     // #class-one

For a general method to retrieve all classes you can do:

// Get a list of the classes of each matched element
let arrays = dom.a.class;     // #class-arrays
  // [['important'], ['button', 'cta'], ...]

// If you want a plain list with all of the classes:
let flatten = dom.a.class._flat;     // #class-flat
  // ['important', 'button', 'cta', ...]

// And if you just want an string with space-separated classes:
let text = dom.a.class._text;     // #class-text
  // 'important button cta ...'

Add a class

// Add the class 'test' (different ways)
dom.a.class.test = true;    // #class-make-true
dom.a.class = 'test';       // #class-push

Remove a class

// Remove the class 'test'
dom.a.class.test = false;    // #class-make-false

Manipulate

Did we say it returns a simple array?

dom.a.forEach(link => link.innerHTML = 'I am a link');

But what an interesting array it is; indeed we are also proxy'ing it so you can manipulate its sub-elements straight from the selector:

// Replace all of the link's html with 'I am a link'
dom.a.html = 'I am a link';

Of course we might want to manipulate them dynamically depending on the current value. Just pass it a function:

// Append ' ^_^' to all of the links in the page
dom.a.html = html => html + ' ^_^';

// Same as this:
dom.a.forEach(link => link.innerHTML = link.innerHTML + ' ^_^');

Note: this won't work dom.a.html += ' ^_^'; for more than 1 match (for reasons)

Or get into genetics to manipulate the attributes:

dom.a.attr.target = '_blank';

// Only to external sites:
let isOwnPage = el => /^https?\:\/\/mypage\.com/.test(el.getAttribute('href'));
dom.a.attr.target = (prev, i, element) => isOwnPage(element) ? '' : '_blank';

Events

You can also handle and trigger events:

// Handle click events for all <a>
dom.a.on.click = e => ...;

// Trigger click event for all <a>
dom.a.trigger.click;

Testing

We are using Jest as a Grunt task for testing. Install Jest and run in the terminal:

grunt watch

Download Details:

Author: franciscop
Source Code: https://github.com/franciscop/superdom 
License: MIT license

#javascript #es6 #dom 

I am Developer

1615040237

PHP jQuery Ajax Post Form Data Example

PHP jquery ajax POST request with MySQL. In this tutorial, you will learn how to create and submit a simple form in PHP using jQuery ajax post request. And how to submit a form data into MySQL database without the whole page refresh or reload. And also you will learn how to show an error message to the user if the user does not fill any form field.

And this tutorial also guide on how to send data to MySQL database using AJAX + jQuery + PHP without reloading the whole page and show a client-side validation error message if it has an error in the form.

PHP jQuery AJAX POST Form Data In Into MySQL DB Example

Just follow the few below steps and easily create and submit ajax form in PHP and MySQL with client-side validation.

  • Create Database And Table
  • Create a Database Connection File
  • Create An Ajax POST Form in PHP
  • Create An Ajax Data Store File

https://www.tutsmake.com/php-jquery-ajax-post-tutorial-example/

#jquery ajax serialize form data example #submit form using ajax in php example #save form data using ajax in php #how to insert form data using ajax in php #php jquery ajax form submit example #jquery ajax and jquery post form submit example with php

Christa  Stehr

Christa Stehr

1595288376

How to use highchart in php with example

Highchart provides feature to draw different type of charts in our web application. Here, in this example i will let you know that how to use highchart in php application.

In this example, we will create chart using php and mysql. Actually highchart provides javascript library to create charts. We will only need to implement that library in our application.

We will need some data to generate chart, so here we will use mysql database and database query to fetch data from database.

So basucally here we will leran to implement simple dynamic column chart using highcharts library in php and ofcourse will use mysql database.

For for that, first thing we will need to create a database and tables where we will put some data. So for full example let’s follow the steps as given below.

Step 1: Create Database

Here for example, i will create a database named shopping and under this database we will need to create some tables, here i will create only two table one is to stroe customers information and another to store orders.

So run the following query in your query window.

Create customers table

CREATE TABLE IF NOT EXISTS `customers` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `name` varchar(30) NOT NULL,

  `email` varchar(30) NOT NULL,

  `phone` varchar(15) NOT NULL,

  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,

  PRIMARY KEY (`id`)

) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=10 ;

Now you will to put some data into these two tables. You can put any data accoring to the column and your need. After putting data we can be able to show the chart according the the data.

Step 2: Create database configuration

Now we will need to create configuration file. So let’s create a new db configuration file **db_config.php **and put the following code into this file.

db_config.php

<?php
  $dbHost = "localhost";
  $dbDatabase = "shopping";
  $dbUser = "root";
        $dbPassword = ""; 

  $mysqli = mysqli_connect($dbHost, $dbUser, $dbPasswrod, $dbDatabase);
?>

#php #create highchart in php #generate highchart in php #high chart using php and mysql example #highchart example #how to implement high chart in php #how to use highchart

I am Developer

1614263355

Google Places Autocomplete In PHP with Example

PHP 8 google address autocompletes without showing the map. In this tutorial, i will show youhow to create a google autocomplete address web app using google address APIs in PHP.

Note that, Google autocomplete address API will return address and as well as latitude, longitude, place code, state, city, country, etc. Using latitude and longitude of address, you can show markers location in google map dynamically in php.

This tutorial guide to you step by step how to implement google places autocomplete address web application without showing google maps in PHP.

For implementing the autocomplete address in php, you will have to get the key from google console app. So, just go to the link https://cloud.google.com and get the google API key.

https://www.tutsmake.com/php-google-places-autocomplete-example/

#autocomplete address google api php #google places autocomplete example in php #google places autocomplete example without map in php #php google places autocomplete jquery #php google places autocomplete jquery example

Laravel AJAX CRUD Example Tutorial

Hello Guys,

Today I will show you how to create laravel AJAX CRUD example tutorial. In this tutorial we are implements ajax crud operation in laravel. Also perform insert, update, delete operation using ajax in laravel 6 and also you can use this ajax crud operation in laravel 6, laravel 7. In ajax crud operation we display records in datatable.

Read More : Laravel AJAX CRUD Example Tutorial

https://www.techsolutionstuff.com/post/laravel-ajax-crud-example-tutorial


Read Also : Read Also : Laravel 6 CRUD Tutorial with Example

https://techsolutionstuff.com/post/laravel-6-crud-tutorial-with-example

#laravel ajax crud example tutorial #ajax crud example in laravel #laravel crud example #laravel crud example with ajax #laravel #php