Part 1 – Arithmetic Operators
- + Addition, – Subtraction, * Multiplication, / Division, % Modulus
- Example:
<?php
$a = 10;
$b = 3;
echo $a + $b; // 13
echo $a - $b; // 7
echo $a * $b; // 30
echo $a / $b; // 3.3333
echo $a % $b; // 1
?>
Part 2 – Assignment Operators
- *=, +=, -=, =, /=
- Example:
<?php
$x = 5;
$x += 3; // x = x + 3, result: 8
$x *= 2; // x = x * 2, result: 16
?>
Part 3 – Comparison Operators
- ==, !=, >, <, >=, <=
- Example:
<?php
$a = 10;
$b = 5;
var_dump($a > $b); // true
var_dump($a == $b); // false
var_dump($a != $b); // true
?>
Part 4 – Logical Operators
- && AND, || OR, ! NOT
- Example:
<?php
$x = true;
$y = false;
var_dump($x && $y); // false
var_dump($x || $y); // true
var_dump(!$x); // false
?>
Part 5 – Expressions & Real-life Example
- Expressions என்பது Operators மற்றும் Variables பயன்படுத்தி ஒரு result generate செய்யும் statement.
- Example:
<?php
$price = 100;
$tax = 0.18;
$total = $price + ($price * $tax);
echo "Total Price: $total"; // 118
?>
- Real-life usage: Bill calculation, Age check, Login validation, etc.
