Server Side Programming Articles - Page 489 of 2650

There are various ways to validate the input data in Laravel. One of those is the Validator class. The first step is that you need to include this class as shown below − use Illuminate\Support\Facades\Validator; When you work with an array you need to mention the keys and the rules to be used in the array. For example, consider the following array. Here, we are adding the keys, firstname, lastname, and address along with the values. Using rules we define all these elements are mandatory and of the data type String. $formData = array( 'firstname' => ... Read More

The make:migration Artisan in Laravel (9) enables you to generate a database migration. You can find the resultant migration files are the database/migrations directory. Using this command, we can add a new column to a table (in addition to other operations). Syntax First of all let us first create a table using the make:migration command. Following is the syntax to create a new table in Laravel using this command − php artisan make:migration create_yourtablename_table Here, the table name is your_table_name. So let us create a table with the name: students. The command to create table students is as follows ... Read More

If you have an image stored in the public folder of Laravel, you can access or, display it in the browser using various methods. In this article, we will learn some of these methods. Assume we have the image of a flower (flower.jpg) stored in the Public folder as shown below Now let us use the image to view inside the browser. Using url() method The url() helper function helps to return you the full path i.e., it will add the HTTP or HTTPS and return the complete path for the given URL. For example, consider the following URL ... Read More

The server IP will be the IP address of the server you are connected to. When you are working with Laravel to get the server IP you can make use of $_SERVER['SERVER_ADDR']. The $_SERVER variable acts as a global variable in PHP. It holds details like header information, script location, and other miscellaneous details. Example 1 The following example retrieves the details of the $_SERVER global variable.

Before we answer the above question, let us first understand what collections are in Laravel. Collection in Laravel is an API wrapper that helps you deal with different operations to be performed on arrays. It makes use of the class Illuminate\Support\Collection to deal with arrays in Laravel. To create a collection from a given array you need to make use of the collect() helper method that returns a collection instance. Later you can use a chain of methods like converting to lowercase and sorting on the collection instance. Example  The example in this section demonstrates how to create a collection from ... Read More

In this tutorial, we are going to see how to find the largest number among the given number in Golang. This tutorial will cover two ways to do the same thing. Explanation Suppose we have three numbers 33, 76, and 47 so we can observe that 76 > 33 76 > 47 So our Golang code should print 76 as the largest number. Defining the operation within Same Funtion Algorithm Step 1 − Declaring the variables for the number1, number2, number3, and largest of int32 data type. Step 2 − Taking the input for the number1, number2, and ... Read More

In this tutorial, we are going to understand the approach to finding the quotient and the remainder by performing the arithmetic operations on the dividend and the divisor provided as input by the user. This tutorial will cover two ways to do the same thing. Explanation To divide any number we use the “ / ” arithmetic operator and to find the remainder we use the “ % ” arithmetic operator Suppose we have a dividend 19 and a divisor 4 then the quotient and the remainder are as follows: Quotient = dividend / divisor = 19 ... Read More

In this tutorial, we are going to learn how to find and print the ASCII value of any character or symbol in Golang. The ASCII stands for American Standard Code for Information Exchange which is a way to represent the characters, and symbols in numeric form. Printing the ASCII value using specifier Algorithm STEP 1 − Declaring the variable of string type STEP 2 − Initializing the variable. STEP 3 − Running the for loop which is printing the ASCII value for each element in the string. Example 1 In this example, we are going to print the ASCII ... Read More

In this tutorial, we are going to see the Golang program to find the Area of a Circle. The area is the total space covered by any closed figure. Formula Area of Circle - 22 / 7 * r * r r - radius of a Circle For example, the radius of a Circle is 10 cm so the Area of a Circle is − Area = 22 / 7 * 10 * 10 = 4.2857142857143 Finding the Area of a circle within the function Algorithm STEP 1 − Declaring the variables for the ... Read More

In this tutorial, we are going to see the Golang program to find the perimeter of a rectangle. Perimeter is the total length of the boundary of any closed figure Formula Perimeter of rectangle - 2 * ( L + B ) L - Length of a rectangle B - Breadth of a rectangle For example, the length of a rectangle is 100 cm and the breadth is 50 cm so the Perimeter of a rectangle is − Perimeter = 2 * (100 + 50) cm = 2 * (150) cm = 300 ... Read More