PHP is Open Source server-side programming / Scripting language that is especially suited for web development and can be embedded into HTML.

PHP stands for Hypertext Preprocessor but it’s original name, Personal Home Page. It was created by Ramsum Lerdorf in 1994.

PHP runs on various platforms Windows, Linux, Unix, Mac OS X, etc.

PHP is compatible with almost all servers Apache, IIS, etc.

At Present in 2017 Php 7.2.0 is latest version of PHP

PHP File Extension .php

What we can do with PHP

• Generate Dynamic Page
• Handle button clicks, radio button
• Create Database Application
• Client/server Application
• Student Registration
• Online Course
• Online Shopping cart
• Chat Rooms

Example

How PHP Works

Development Environment

• Operating System – Windows, Linux, Mac etc.
• Web Server – XAMP, WAMP, MAMP etc.
  • §XAMP – Apache + MariaDB + PHP + Perl

• Editor/IDE – NotePad, NotePad ++, NetBeans, Brackets, Eclipse etc.
• Web Browser – Chrome, Firefox etc.

Basic Structure of PHP

Basic Structure of PHP

Variable

Variables are containers which is used to store information.

Type of Variables: –

• Local Variable
• Global Variable
• Static Variable

Variable Declaration

In PHP, variable names begin with $ sign, followed by a name.

Ex: –

• $roll
• $price
• $name

Rules

• Variable starts with $ sign.
• Variable name only starts with a letter, an underscore ( _ ).
• Variable name cannot start with a number.
• It is case sensitive which implies that the variable num in lowercase is different from variable NUM in uppercase.
• Do not use Predefined constant name e.g. PHP_VERSION , PHP_OS etc.
• Do not use reserved keywords. e.g. else, if etc.

Variable Initialization

PHP can store all type of data in variables. Before using a variable in PHP, assign a value to it so PHP will create that variable and store data in it. That means we have to assign data to a variable before attempting to read a variable’s value.

Ex: –

• $roll = 256;
• $price = 25.50;
• $name = “Geeky Shows”;

Note – If a variable is created without a value, it is automatically assigned a value of NULL.

Internal Data Types

In other language, you need to specify the exact data format of each variable, but PHP handles that for you.

• Integer – It can hold whole number. Ex: 12, 0, -34 etc.
• Float/Double – It can hold floating point number. Ex: 25.2654, 2.12 etc.
• String – It can hold text or group of characters. Ex: – “Geeky Shows” etc.
• Boolean – It can hold true/false value.
• Array – It can hold multiple values in one single variable.
• Object – It can hold programming objects.
• Resource – It is special variable that hold references to resources external to PHP.
• NULL – It can hold only one value – NULL .

The post PHP Tutorial For Beginners Step By Step With Example Session-1 appeared first on Artificial Intelligence.

What went wrong: Execution failed for task ‘:app:processDebugGoogleServices’.

No matching client found for package name ‘com.example.myapp ‘

Step -1: check your google-services.json and build.gradle matching applicationId and package_name match

this is google-services.json file

this is build.gradle file

So no matching applicationId and package name get the match so remove com.

The post Execution failed for task’:app:processDebugGoogleServices’.> No matching client found for package name’com.cotocus.holidaylandmark.publisher.holidaylandmark_publisher’ android studio-SOLVED appeared first on Artificial Intelligence.

A confirm dialog is a dialog box that asks users to approve the requested operation. It usually appears with button pairs like Yes/No, OK/Cancel, Agree/Disagree. Confirm dialogs help prevent accidental actions such as deleting content, closing an account, leaving a page when the form content on that page has not been saved, etc.

This article shows you how to creat confirm dialogs in Flutter. We will go over 2 examples: the first one demonstrates a material confirm dialog and the second one displays a Cupertino (iOS-style) confirm dialog.

Material Confirm Dialog

If you are developing an app for both Android and iOS and doesn’t need an iOS-exclusive experience, using material is a good way to go.

Preview

Our sample app has a button and a red box. When the button is pressed, a confirm dialog will show up.

• f the user select “Yes”, the box will be removed then the dialog will be closed. The button then becomes disable.
• If the user select “No”, the dialog will be closed and nothing else happens.

The code

The complete code with explanations:

Cupertino Confirm Dialog

Preview

The code

Don’t forget to import the Cupertino library:

The full code for the xample:

The post How to Make a Confirm Dialog in Flutter appeared first on Artificial Intelligence.

ECMAScript 2015 (or ES6) is the sixth and major edition of the ECMAScript language specification standard. It defines the standard for the JavaScript implementation.

ES6 brought significant changes to the JavaScript language. It introduces several new features such as, block-scoped variables, new loop for iterating over arrays and objects, template literals, and many other enhancements to make JavaScript programming easier and more fun. In this chapter, we will discuss some of the best ES6 features that you can use in your everyday JavaScript coding.

The let Keyword

ES6 introduces the new let keyword for declaring variables. Prior to ES6, the only way to declare a variable in JavaScript was the var keyword. Let’s see what’s the difference between them is.

There are two critical differences between the var and let. Variables declared with the var keyword are function-scoped and hoisted at the top within its scope, whereas variables declared with let keyword are block-scoped ({}) and they are not hoisted.

Block scoping simply means that a new scope is created between a pair of curly brackets i.e. {}. Therefore, if you declare a variable with the let keyword inside a loop, it does not exist outside of the loop, as demonstrated in the following example:

As you can see in the above example the variable i in the first block is not accessible outside the for loop. This also enables us to reuse the same variable name multiple times as its scope is limited to the block ({}), which results in less variable declaration and more cleaner code.

The const Keyword

The new const keyword makes it possible to define constants. Constants are read-only, you cannot reassign new values to them. They are also block-scoped like let.

However, you can still change object properties or array elements:

The for...of Loop Variable

The new for...of loop allows us to iterate over arrays or other iterable objects very easily. Also, the code inside the loop is executed for each element of the iterable object. Here’s an example:

Arrow Functions

Arrow Functions are another interesting feature in ES6. It provides a more concise syntax for writing function expressions by opting out the function and return keywords.

Arrow functions are defined using a new syntax, the fat arrow (=>) notation. Let’s see how it looks:

The post JavaScript ES6 Features appeared first on Artificial Intelligence.

web.php

CategoryController.php

The post How to return multiple blade file using single function inside same controller and same route appeared first on Artificial Intelligence.

Flutter Widgets

Hello World Example

Types of Widget

We can split the Flutter widget into two categories:

• Visible (Output and Input)
• Invisible (Layout and Control)

Visible widget

The visible widgets are related to the user input and output data. Some of the important types of this widget are:

Text

A Text widget holds some text to display on the screen. We can align the text widget by using textAlign property, and style property allow the customization of Text that includes font, font weight, font style, letter spacing, color, and many more. We can use it as like below code snippets.

Button

This widget allows you to perform some action on click. Flutter does not allow you to use the Button widget directly; instead, it uses a type of buttons like a FlatButton and a RaisedButton. We can use it as like below code snippets.

In the above example, the onPressed property allows us to perform an action when you click the button, and elevation property is used to change how much it stands out.

The post Flutter Basic Query appeared first on Artificial Intelligence.

First let’s go to popup button in blade file

Go to Popup modal in blade file add this code modal your JavaScript

Go to Popup JavaScript in blade file add this code your JavaScript

The post How to Popup modal to all data display in JavaScript appeared first on Artificial Intelligence.

This is addimages table

First let’s go to your Controller file and our function

The post How to other table data to store another table data appeared first on Artificial Intelligence.

First let’s go to your Laravel project And add your Blade file

And go to your Laravel project And add your Controller file

This is Database structure

The post How get data in Dropdown of multiple role id in Laravel appeared first on Artificial Intelligence.

array_slice

(PHP 4, PHP 5, PHP 7, PHP 8)

array_slice — Extract a slice of the array

Description

array_slice() returns the sequence of elements from the array array as specified by the offset and length parameters.

Parameters

array

The input array.

offset

If offset is non-negative, the sequence will start at that offset in the array.

If offset is negative, the sequence will start that far from the end of the array.

length

If length is given and is positive, then the sequence will have up to that many elements in it.

If the array is shorter than the length, then only the available array elements will be present.

If length is given and is negative then the sequence will stop that many elements from the end of the array.

If it is omitted, then the sequence will have everything from offset up until the end of the array.

Return Values

Returns the slice. If the offset is larger than the size of the array, an empty array is returned.

Examples

Example #1 array_slice() examples

The above example will output:

Example #2 array_slice() and one-based array

The above example will output:

Example #3 array_slice() and array with mixed keys

The above example will output:

The post How to get a Particular aliments of array using slice method in Laravel appeared first on Artificial Intelligence.