Hello internals,
Since nobody could seem to agree on a language construct for
accessing a variable that you don't know exists (ifsetor),
I would like to propose a simpler approach.
It returns the value of the passed variable, or NULL if the variable
does not exist.
ifset($some_array['some-key-you-are-not-sure-exists']);
This E_STRICT ternary pain-in-the-ass expression is constantly at
the top of every PHP script I write:
$ConfirmCode = (isset($_GET['ConfirmCode']) ? $_GET['ConfirmCode'] : '');
Please?
--
Best regards,
Jason Garber mailto:jason@ionzoft.com
IonZoft, Inc.
Jason Garber wrote:
Hello internals,
Since nobody could seem to agree on a language construct for
accessing a variable that you don't know exists (ifsetor),
I would like to propose a simpler approach.It returns the value of the passed variable, or
NULLif the variable
does not exist.ifset($some_array['some-key-you-are-not-sure-exists']);
IMHO, this wouldn't solve the problem. The problem is that we need default
values, not NULL. Sometimes you may wantNULLsometimes you may not.
This
E_STRICTternary pain-in-the-ass expression is constantly at
the top of every PHP script I write:$ConfirmCode = (isset($_GET['ConfirmCode']) ? $_GET['ConfirmCode'] :
'');
I agree that this is really a PITA, but until we get an operator for this,
we should stuck on the ternary.
$ConfirmCode = (isset($_GET['ConfirmCode']) ? $_GET['ConfirmCode'] :
'');
I agree that this is really a PITA, but until we get an operator for this,
we should stuck on the ternary.
Another option is to use settype(); This has two advantages. One, if
the variable does not exist, settype creates it with an empty value of
the given type. Second, if it does exist, it can semitypecast them for you.
settype($_GET['ConfirmCode'], "string");
or
$ConfirmCode = $_GET["ConfirmCode"];
settype($ConfirmCode, "string");
Brian Moon
dealnews.com
Brian Moon wrote:
$ConfirmCode = (isset($_GET['ConfirmCode']) ? $_GET['ConfirmCode'] :
'');
I agree that this is really a PITA, but until we get an operator for
this, we should stuck on the ternary.Another option is to use
settype(); This has two advantages. One, if
the variable does not exist, settype creates it with an empty value of
the given type. Second, if it does exist, it can semitypecast them for
you.settype($_GET['ConfirmCode'], "string");
or
$ConfirmCode = $_GET["ConfirmCode"];
settype($ConfirmCode, "string");
But you still don't have a default value, just an empty default
value(string, zero, etc.). You can't i.e. initialize $_GET["ConfirmCode"]
with "Yes" using settype...
Regards,
Cristiano Duarte
But you still don't have a default value, just an empty default
value(string, zero, etc.). You can't i.e. initialize $_GET["ConfirmCode"]
with "Yes" using settype...
Oh, you want an operator to do that? Does some other language have this
that we are wanting to copy here? Seems overly complicated to me. But,
so does a lot of things being added PHP these days.
Brian.
Brian Moon wrote:
Oh, you want an operator to do that? Does some other language have
this that we are wanting to copy here?
IIRC C# 3.0 adds a new operator ?: written as "foo = bar ?: 'default
value';". I tried to search a resource with some documentation about
this new operator, but Google can't search for "?:" and live.com is
dead.
BTW the same operator can be found in Derick's meeting notes for PHP
6.0: http://www.php.net/~derick/meeting-notes.html#ifsetor-as-
replacement-for-foo-isset-foo-foo-something-else
nico
Brian Moon wrote:
Oh, you want an operator to do that? Does some other language have this
that we are wanting to copy here? Seems overly complicated to me. But,
so does a lot of things being added PHP these days.
As bash ${parameter:=word} ?
--
toggg