How to Install Composer on Mac OS

How to install composer on Mac OS.

What is Composer?

PHP Composer is a cross-platform dependency manager that allows you to manage package dependency in your project.

In my previous article, I have explained PHP Composer – how to manage package dependency in PHP through composer.

How to Install Composer on Mac OS

How to Install Composer on Mac OS

Program to Print Factorial of a Number in PHP – Iterative & Recursive Approach

Write a program to print factorial of a number in PHP. In this tutorial, We are going to write a PHP code to print factorial of a number using iterative as well as recursive approach. Before solving this problem let’s understand what is factorial.

Program to Print Factorial of a Number in PHP

Program to Print Factorial of a Number in PHP

Find Common Elements in Two Arrays – Intersection of two Arrays

Given two sorted arrays, Write a code to find common elements in two arrays. In other words, we have to write a code to find the intersection of two arrays.

Find Common Elements in Two Arrays

Let’s assume following two sorted arrays arr1[] and arr2[].

int arr1[] = {2,  3,  4,  5,  6};
int arr2[] = {4,  6,  7,  8,  9};

So the common elements in these two arrays is 4 and 6.

Generate Prime Numbers between 1 to N – Sieve of Eratosthenes

Write an efficient program to generate prime numbers between 1 to N (Where N is 10, 100, 1000 etc). This question can also be asked like this, Generate prime numbers between 1 to 100 or 1 to 10 etc.

Suppose the value of N is 10, So the prime numbers between 1 to 10 is 2, 3, 5, 7.  Now let’s learn the most efficient algorithm (Sieve of Eratosthenes) to generate Prime Numbers between 1 to N. Before solving this program, let’s understand what is a prime number.