PHP Tutorial - Functions
⚙️ Functions - Reusable Code
Real Life:
🧮 Calculator: Input → Calculate → Output
📞 Phone Call: Number → Dial → Connect
Syntax
function functionName($param) {
return $result;
}
// Call
$value = functionName(10);Types
- No parameters
- With parameters
- Return value
- Default parameters
Example
<?php
function add($a, $b) {
return $a + $b;
}
echo add(5, 3);
?>