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Last Updated: 29 June 2022

We sometimes need to round down the float values to the next lowest integer in our maths problems.PHP provides a built-in function floor() to get this task done through ou...read more

Web Technologies

PHP

PHP Programs

PHP Program to Rearrange Array Such That arr[i] >= arr[j] if i is Even and arr[i]<=arr[j] if i is Odd and j < i

Last Updated: 22 July 2024

Given an array of n elements. Our task is to write a program to rearrange the array such that elements at even positions are greater than all elements before it and elemen...read more

PHP Program to Count Primes in Ranges

Last Updated: 22 July 2024

Given a range [L, R], we need to find the count of total numbers of prime numbers in the range [L, R] where 0 = L = R 10000. Consider that there are a large number of que...read more

PHP Program to Find the Size of Subarray With Maximum Sum

Last Updated: 22 July 2024

Given an Array, the task is to find the size of the subarray that yields the maximum sum. This article provides a comprehensive guide on how to implement a PHP program to ...read more

PHP Program to Print all triplets in sorted array that form AP

Last Updated: 22 July 2024

Given a sorted array of distinct positive integers, print all triplets that form AP (or Arithmetic Progression)Examples :Input : arr[] = { 2, 6, 9, 12, 17, 22, 31, 32, 35,...read more

arithmetic progression

PHP Program to Print uncommon elements from two sorted arrays

Last Updated: 22 July 2024

Given two sorted arrays of distinct elements, we need to print those elements from both arrays that are not common. The output should be printed in sorted order.Examples :...read more

two-pointer-algorithm

PHP Program for Minimum Product Subset of an Array

Last Updated: 22 July 2024

Given an array Arr, we have to find the minimum product possible with the subset of elements present in the array. The minimum product can be a single element also.Example...read more

PHP Program to Check Involutory Matrix

Last Updated: 22 July 2024

Given a matrix, the task is to check matrix is involutory matrix or not. Involutory Matrix: A matrix is said to be involutory matrix if the matrix multiply by itself retur...read more

PHP Program to Interchange elements of first and last rows in matrix

Last Updated: 22 July 2024

Given a 4 x 4 matrix, we have to interchange the elements of first and last row and show the resulting matrix.Examples :Input : 3 4 5 0 2 6 1 2 2 7 1 2 ...read more

Matrix

Computer Science Fundamentals

PHP Program to Sort the matrix row-wise and column-wise

Last Updated: 22 July 2024

Given a n x n matrix. The problem is to sort the matrix row-wise and column-wise.Examples:Input : mat[][] = { {4, 1, 3}, {9, 6, 8}, {...read more

PHP Program for Identity Matrix

Last Updated: 22 July 2024

Introduction to Identity Matrix : The dictionary definition of an Identity Matrix is a square matrix in which all the elements of the principal or main diagonal are 1's an...read more

Mathematical

Matrix

Computer Science Fundamentals

PHP Program to Count Sets of 1s and 0s in a Binary Matrix

Last Updated: 22 July 2024

Given a N x M Binary Matrix, count the number of sets where a set can be formed one or more same values in a row or column.Examples:Input: [[ 1, 0, 1 ], [ 0, 1, ...read more

PHP Program to Efficiently compute sums of diagonals of a matrix

Last Updated: 22 July 2024

Given a 2D square matrix, find the sum of elements in Principal and Secondary diagonals. For example, consider the following 4 X 4 input matrix.A00 A01 A02 A03A10 A11 A12 ...read more

PHP Program To Check If A String Is Substring Of Another

Last Updated: 22 July 2024

Given two strings s1 and s2, find if s1 is a substring of s2. If yes, return the index of the first occurrence, else return -1.Examples:Input: s1 = "for", s2 = "geeksforge...read more

String to Integer in Different Programming Languages

Last Updated: 24 August 2024

Below are example programs to do string to integer conversion in different programming languages.C++#include bits/stdc++.husing namespace std;int main(){ int val; ch...read more

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