📘 Lesson · Lesson 48
Calculator (Switch Case)
Calculator (Switch Case)
About
A simple calculator using switch case to choose the operation — a classic beginner PHP program.
Calculator Code
$a = 10; $b = 5; $op = "+";
switch ($op) {
case "+": echo $a + $b; break; // 15
case "-": echo $a - $b; break;
case "*": echo $a * $b; break;
case "/": echo ($b != 0) ? $a / $b : "Cannot divide by zero"; break;
default: echo "Invalid operator";
}Summary
- switch picks the operation based on the operator.
- Always check for divide-by-zero before dividing.
परिचय
Operation चुनने के लिए switch case वाला simple calculator — एक classic beginner PHP program।
Calculator Code
$a = 10; $b = 5; $op = "+";
switch ($op) {
case "+": echo $a + $b; break; // 15
case "-": echo $a - $b; break;
case "*": echo $a * $b; break;
case "/": echo ($b != 0) ? $a / $b : "Cannot divide by zero"; break;
default: echo "Invalid operator";
}सारांश
- switch operator के आधार पर operation चुनता है।
- Divide करने से पहले हमेशा divide-by-zero जाँचें।