PHP: issue with switch with range

Question

I would like to differ between the following cases in PHP using a switch statement. Can someone here help and tell me how I have to change this to get it working with numeric ranges (integers) ?

$myVar < 0
$myVar < 10
$myVar < 20
$myVar < 30
$myVar < 999
default

So far I have the following but guess this needs modification because of the ranges:

switch($myVar)
{
    case(<0):
        // do stuff
        break;
    case(<10):
        // do stuff
        break;
    case(<20):
        // do stuff
        break;
    case(<30):
        // do stuff
        break;
    case(<999):
        // do stuff
        break;
    default:
        // do stuff
        break;
}

Many thanks for any help with this, Tim

Here's a *technique* http://stackoverflow.com/a/8876696/46675 — Mike B, Feb 11 '14 at 20:39
http://www.php.net/manual/en/control-structures.switch.php#88643 — Paul Dessert, Feb 11 '14 at 20:40

score 2 · Accepted Answer · answered Feb 11 '14 at 20:41

2

You can do it like this:

$myVar = 50;
switch (true) {
    case($myVar < 0):
        // do stuff
        break;
    case($myVar < 10):
        // do stuff
        break;
    case($myVar < 20):
        // do stuff
        break;
    case($myVar < 30):
        // do stuff
        break;
    case($myVar < 999):
        // do stuff
        break;
    default:
        // do stuff
        break;
}

There are a few good example about that in the comments of the manual.

answered Feb 11 '14 at 20:41

Bjoern

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One follow-up question on this, would this work the same way in JavaScript as well ? – user2571510 Feb 11 '14 at 20:53
1

Check out this SO answer: http://stackoverflow.com/questions/17145723/how-can-i-use-ranges-in-a-switch-case-statement-using-javascript There you'll find a good source for this additional question. – Bjoern Feb 11 '14 at 20:59

score 1 · Answer 2 · answered Feb 11 '14 at 20:46

Use the in_array($myVar,range(100,200)) to check whether the value exists in the range.

$myVar = 50;
switch (true) {
    case(in_array($myVar,range(0,10))):
        // do stuff
        break;
    case(in_array($myVar,range(20,30))):
        // do stuff
        break;
    case(in_array($myVar,range(30,900))):
        // do stuff
        break;

    default:
        // do stuff
        break;
}

PHP: issue with switch with range

2 Answers2