FUNCTION (ADVANCED)

Example: 1

<?php

function calc($num1, $num2, $op)
{
switch ($op)
{
case "+";
$total = $num1 + $num2;
break;

case "-";
$total = $num1 - $num2;
break;

case "*";
$total = $num1 * $num2;
break;


case "/";
$total = $num1 / $num2;
break;

default:
echo "Unknown operator.";

}
}

?>


Example: 2

<?php

function calc($num1, $num2, $op)
{
switch ($op)
{
case "+";
$total = $num1 + $num2;
break;

case "-";
$total = $num1 - $num2;
break;

case "*";
$total = $num1 * $num2;
break;


case "/";
$total = $num1 / $num2;
break;

default:
echo "Unknown operator.";

}

calc(10,10,"+");

}

?>


Example: 3

<?php

function calc($num1, $num2, $op)
{
switch ($op)
{
case "+";
$total = $num1 + $num2;
break;

case "-";
$total = $num1 - $num2;
break;

case "*";
$total = $num1 * $num2;
break;


case "/";
$total = $num1 / $num2;
break;

default:
echo "Unknown operator.";

}

echo calc(10,10,"+");

}

?>

Example: 4

<?php

function calc($num1, $num2, $op)
{
switch ($op)
{
case "+";
$total = $num1 + $num2;
return $total;
break;

case "-";
$total = $num1 - $num2;
return $total;
break;

case "*";
$total = $num1 * $num2;
return $total;
break;


case "/";
$total = $num1 / $num2;
return $total;
break;

default:
echo "Unknown operator.";

}

echo calc(10,10,"+");

}

?>

Example: 5

<?php

function calc($num1, $num2, $op)
{
switch ($op)
{
case "+";
$total = $num1 + $num2;
return $total;
break;

case "-";
$total = $num1 - $num2;
return $total;
break;

case "*";
$total = $num1 * $num2;
return $total;
break;


case "/";
$total = $num1 / $num2;
return $total;
break;

default:
echo "Unknown operator.";

}


}
echo calc(10,10,"+");

?>


Example: 6

<?php

function calc($num1, $num2, $op)
{
switch ($op)
{
case "+";
$total = $num1 + $num2;
return $total;
break;

case "-";
$total = $num1 - $num2;
return $total;
break;

case "*";
$total = $num1 * $num2;
return $total;
break;


case "/";
$total = $num1 / $num2;
return $total;
break;

default:
echo "Unknown operator.";

}


}
echo calc(13,7,"/");

?>


Example:7

<?php

function calc($num1, $num2, $op)
{
switch ($op)
{
case "+";
$total = $num1 + $num2;
return $total;
break;

case "-";
$total = $num1 - $num2;
return $total;
break;

case "*";
$total = $num1 * $num2;
return $total;
break;


case "/";
$total = $num1 / $num2;
return $total;
break;

default:
echo "Unknown operator.";

}

}
echo calc(13,7,"a");

?>