PHP Logical & Programming Interview questions

 Write a program in PHP to check whether a number is prime or not

Write a program in PHP to find no of days between two dates

How to find a position of character in a string in PHP without using strpos function

Write a PHP program to find a string is palindrome or not

Write a program in php to find the factorial of a number

PHP header() Function

Write a program in PHP to reverse a number

PHP type casting

PHP Recursive Functions 

PHP program to merge two arrays into a new array

How to remove duplicate values from an array in PHP

How to check if a value exists in an array in PHP 

How to check if a key exists in an array in PHP

How to reverse the order of an array in PHP