General PHP

Whats new in PHP 7.4

PHP core team possibly release PHP 7.4 somewhere on December 2019. Today we take a look at some new upcoming features and improvements.


This feature can resolve performance related issues in PHP. In Short if you are using the framework then it’s file loaded and recompiled on each and every request. Preloading allow us to store files in memory on startup and then available for each and every request. If files are changed then server will be restart.


FFI means Foreign Function Interface, it is allow us to call C code from userland. This means that PHP extensions can be written in pure PHP. This is complex topic and you need C code knowledge to use this feature.

For more information refer the

Null Coalescing Assignment Operator:

// Now
$dateTime = $dateTime ?? new DateTime();

// in PHP 7.4
$dateTime ??= new DateTime();

ext-hash always enable:

This extension is permanently available for all PHP installations.

Password Hashing Registry:

Internal changes to how hashing libraries are used, so that it’s easier for userland to use them.

Type Property:

Class variable can be type hinted.

class Test
    public string $demo;
    public Bar $bar;

AngularJS JavaScript

Ng-notify – a simple and lightweight library for AngularJs

Ng-notify is a simple and lightweight notification library for AngularJs apps. This library doesn’t required any dependencies except angular.js. Animation is achieved with pure JS & lightweight module (~5.5 kBs. js and css combine). You can use HTML in your message. Set a global configuration for each and every notification in your app.

Installation :

Install using bower

bower install ng-notify --save

Install using npm

npm install ng-notify --save

As of v0.6.0, ng-notify is now available via the jsDelivr CDN if you’d prefer to go down that route.


Example :


Aways you can direct download the source file from this repository – files are located in dist folder, be sure to use minified version of both js and css.

Usage :

After adding ng-notify.min.js and ng-notify.min.css inject ng-notify provider into your module.

var app = angular.module('demo', ['ngNotify']);

Now you can show notification from anywhere in your app, just use set method.

ngNotify.set('Your notification message goes here!');

If you want to specify the type of notification (success, warning, info etc.) then specify it as second parameter.

ngNotify.set('Your error message goes here!', 'error');

Default Configuration :

    theme: 'pure',
    position: 'bottom',
    duration: 3000,
    type: 'info',
    sticky: false,
    button: true,
    html: false

You can override the default configuration by using config method, you can also set the individual configuration for each and every notification.

ngNotify.set('Your first message.', {
    position: 'top',
    sticky: true

ngNotify.set('Your second message.', {
    type: 'error',
    duration: 2000

Sticky Notification :

This allows you to set a notification which is does not fade away, to do simply set sticky attribute to true,

ngNotify.set('This is sticky.', {
    sticky: true

HTML Notification :

This allows you to show html content in notification, to do this set the html attribute to true.

ngNotify.set('This has HTML content!', {
    html: true

Callbacks :

After a notification is completed then you can add a callback for further logic. This callback only set through set method and is passed an optional third parameter.

ngNotify.set('This message has a callback.', {}, function() {
   // your logic here

For more info please visit following url :