Question

The example below is an extráct from http://php.net/manual/de/control-structures.switch.php

<?php
$totaltime = 0;
switch ($totaltime) {

    case ($totaltime < 1):
        echo "That was fast!";
        break;

    case ($totaltime > 1):
        echo "Not fast!";
        break;

    case ($totaltime > 10):
        echo "That's slooooow";
        break;
}

?>

I expected the result as “That was fast.” But actual result is “Not fast!”. It would be great if some one can explain me why?

But if i add another case, case 0: echo "That was super fast!". Then it is echoing properly. i.e “That was super fast!”. Please help me how to use conditional switch statement.

EDIT:-

Thanks all for your responses. I am able to overcome the above problem by modifyong switch($totaltime) to switch(1)

Answer 1

case ($totaltime < 1): means 1 to PHP (that equation returns true)

case ($totaltime > 1): means 0 to PHP (that equation returns false)

Since $totaltime is 0, you get that output

In other words PHP compares $totaltime to the result of the comparisons.

EDIT regarding EDIT in OP:

You need to get rid of the switch()-statement. You only use it to easily compare against different values and not use additional expressions with it.

I mean what is wrong with

<?php
$totaltime = 0;

if ($totaltime < 1) {
    echo "That was fast!";
} else if ($totaltime > 10) {
    echo "That's slooooow";
} else if ($totaltime > 1) {
    echo "Not fast!";
}

?>

EDIT: please note that I switched the last two if-statements to make it really work.