Learn PHP

PHP Functions If you've ever copied and pasted the same block of code more than once in your PHP project — there's a better way. It's called a function , and it's one of the most important concepts in programming. In this article, you'll learn everything about PHP functions, step by step, with real-world examples that actually make sense. What is a Function? A function is a block of code that: Has a name Can be called anytime you need it Can accept inputs (called parameters) Can return a result Think of it like a coffee machine . You put in coffee beans (input), it does its job, and gives you coffee (output). You don't need to know how it works inside — you just press the button. Why Use Functions? Without Functions                             With Functions                               Copy-paste same code everywhe...

Convert Number to Words in PHP Introduction Sometimes, web applications need to convert numbers into words. This is commonly used in invoice systems, billing software, cheque printing, payroll applications, and financial reports. For example: 1250 becomes One Thousand Two Hundred Fifty In this tutorial, you'll learn how to convert numbers to words in PHP using a reusable function with complete source code and examples. Why Convert Numbers to Words? Converting numbers into words is useful for: Invoice generation Cheque printing Salary slips Banking applications Billing software Financial reports Lets see by real example  <?php function numberToWords($num) {     $ones = array(         0 => "zero",         1 => "one",         2 => "two",         3 => "three",         4 => "four",         5 => "five",         6 => ...