junaidtk

Json means java script object notation.
Json is used for transfering the data from cleint side to server or vice versa.
Json formate is text only so it can easily send to and from server.

In Json data is key value pair, with data separated by comma and 
curly braces hold object data and square bracket hold array data.

Key must be string and written in double quotes.
Value must be one of the following 
* a string

junaidtk

What is character Set and Encoding
===================================

Character encoding are the important concept in process of converting byte streams into characters. 
There are two things which are important in converting byte to character "character set and an encoding"

================= ####### ================= ####### ==================

In the earlier stage of computer encoding 
There are diffrent methods of representing the character. 

junaidtk

The below code is plugin codes used for adding new functionality setup 
while updating the plugin or activating the plugin.

This is simple plugin code and it will add transient while updating or activating the plugin.
Clear transient once we finished the operation.

=======================================================================================

<?php
/*Plugin Name: Wordpress Update

junaidtk

$wpdb->get_row()
====================
get_row() returns single row of data from database table.
eg:
<?php
$mycustomer = $wpdb->get_row(“SELECT * FROM laundry_customers WHERE ID = 1”);
echo $mycustomer -> customer_name;
?>

$wpdb->get_results()

junaidtk

1)Constant Array
===============
Now the constant data types in php can be defined as numerically indexed array and associative array.

So below line of code can be coded like as new constant array.

old
------
<?php
define('COLOR_RED', '#f44141');

junaidtk

The ob_start() and ob_get_clean() are used hold the value in the inter buffer memory.

Normal Buffering functions used are.

ob_start();
---------------
This function will turn on the out buffer While buffering is ON no output is sent from script (other then headers), 
instead the output is stored in internal buffer.

ob_get_clean();

junaidtk

// 1. when registering a custom post type set show_in_menu to false,
function ttlm_register_team_custom_type() {
	$labels = array(
		'name'               => _x( 'Teams', 'post type general name', 'your-plugin-textdomain' ),
		'singular_name'      => _x( 'Team', 'post type singular name', 'your-plugin-textdomain' ),
		'menu_name'          => _x( 'Teams', 'admin menu', 'your-plugin-textdomain' ),
		'name_admin_bar'     => _x( 'Team', 'add new on admin bar', 'your-plugin-textdomain' ),
		'add_new'            => _x( 'Add New', 'team', 'your-plugin-textdomain' ),
		'add_new_item'       => __( 'Add New Team', 'your-plugin-textdomain' ),
		'new_item'           => __( 'New Team', 'your-plugin-textdomain' ),

junaidtk

esc_html():
It is wordpress function used to convert the html element to html entity. 

Refer the below eg: 
$html = esc_html( '<a href="http://www.example.com/">A link</a>' );

so $html contain 
&lt;a href=&quot;http://www.example.com/&quot;&gt;A link&lt;/a&gt;

The output will display like below. 

junaidtk

Static means they are unchanging.

static function means, it is a function namespaced by the name of its class.

To make a function static, we need to add the key work static in the function definition.

Like

public static function(){
  // Statement.

junaidtk

<div class="container-fluid">
        <div class="row">
          <!-- <div class="section-head text-center col-sm-12">
              <h4>My Work</h4>
              <p>...</p>
          </div> -->
        <?php 
        $terms = get_terms( array(
          'taxonomy' => 'work-category',
          'hide_empty' => false,