[SOLVED] Switch Operators?

[papaface]

Hello,

I know that switches can be used to check the subject for a value e.g:

switch ($value)
{
case "2":
//do something
break;
}

^ That does something if $value is "2". But how do you this to check if $value is more than 10 for instance?

[Daniel0]

You can't.

[papaface]

You can't.

I didn't think so.

Any reason why you can't?

[Daniel0]

Switches are only used to check if something equals something else. That's just the way switches are. You'll have to use an if structure to use any other operators.

[kenrbnsn]

I beg to differ:

<?php
$val = rand(0,30);
switch (true) {
   case ($val == 0):
       echo 'Value (' . $val . ') is zero';
       break;
   case $val > 0 && $val < 20:
       echo 'Value (' . $val . ') is between 0 and 20';
       break;
   case ($val >= 20):
       echo 'Value (' . $val . ') is greater than or equal to 20';
       break;
}
echo "<br>\n";
?>

 

Ken

[papaface]

I beg to differ:

<?php
$val = rand(0,30);
switch (true) {
   case ($val == 0):
       echo 'Value (' . $val . ') is zero';
       break;
   case $val > 0 && $val < 20:
       echo 'Value (' . $val . ') is between 0 and 20';
       break;
   case ($val >= 20):
       echo 'Value (' . $val . ') is greater than or equal to 20';
       break;
}
echo "<br>\n";
?>

 

Ken

Thanks. I was just reading through the switch documentation and read that it can be done using your method.

Thanks

[Daniel0]

I beg to differ:

<?php
$val = rand(0,30);
switch (true) {
   case ($val == 0):
       echo 'Value (' . $val . ') is zero';
       break;
   case $val > 0 && $val < 20:
       echo 'Value (' . $val . ') is between 0 and 20';
       break;
   case ($val >= 20):
       echo 'Value (' . $val . ') is greater than or equal to 20';
       break;
}
echo "<br>\n";
?>

 

Ken

 

Hmm, didn't know you could do that, but there is no reason to do that. The point of the switch, from what I see it, is that you don't have to repeat the variable name you are checking all the time.

[papaface]

I beg to differ:

<?php
$val = rand(0,30);
switch (true) {
   case ($val == 0):
       echo 'Value (' . $val . ') is zero';
       break;
   case $val > 0 && $val < 20:
       echo 'Value (' . $val . ') is between 0 and 20';
       break;
   case ($val >= 20):
       echo 'Value (' . $val . ') is greater than or equal to 20';
       break;
}
echo "<br>\n";
?>

 

Ken

 

Hmm, didn't know you could do that, but there is no reason to do that. The point of the switch, from what I see it, is that you don't have to repeat the variable name you are checking all the time.

Yeah, if's are better. But I asked if you can do it, not "is it better to use ifs" lol.