| Re: switch with case 0 [message #182632 is a reply to message #182630] |
Mon, 19 August 2013 17:39   |
Thomas Mlynarczyk
Messages: 131
Registered: September 2010
Karma:
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Senior Member |
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Thomas 'PointedEars' Lahn schrieb:
> But PHP, after all, also allows for strict comparison to avoid this problem.
True, there are === and !==. Unfortunately, though, there are no
"strict" equivalents for <, <=, > and >=. That would be nice to have.
> BTW, because of discussions like this one, switch-case has been either
> removed in an early version from or is never going to be introduced into
> Python,
I think the original reason for switch was to evaluate the expression
only once and use the result as an offset in a "jump table". And
actually, the Pythonic equivalent of switch is not an if-elif-else
structure, but a dict of functions.
> and that is precisely what you should do in PHP if the type matters:
>
> if ($foo === 1)
> {
> // …
> }
> else if ($foo === 2)
> {
> // …
> }
> else if ($foo === 3)
> {
> // …
> }
> else
> {
> /* default */
> }
Indeed, you're right.
Greetings,
Thomas
--
Ce n'est pas parce qu'ils sont nombreux à avoir tort qu'ils ont raison!
(Coluche)
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