if ((($value1 != null) || ($value1 != "")) && $value2 != "" && $value1
!= $value2) { ret false }
if i omit the [value2 != ""] i would still get the same result, right?
because I check if value1 != "" and then I check if value1!=value2
i.e. :
if ((($value1 != null) || ($value1 != "")) && $value1 != value2) { ret
false }
regards, maxim. 4 1621
"Maxim Vexler" wrote: if ((($value1 != null) || ($value1 != "")) && $value2 != "" &&
$value1 != $value2) { ret false }
if i omit the [value2 != ""] i would still get the same result,
right? because I check if value1 != "" and then I check if
value1!=value2 i.e. :
if ((($value1 != null) || ($value1 != "")) && $value1 != value2)
{ ret false }
regards, maxim.
I believe you are right. And you can simplify as well:
($value1 != null) || ($value1 != ""))
is equal to:
($value1 != ’’) [[don’t need the two statements]]
or if you have doubts, use:
(strlen($value1 ) > 0)
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On Tue, 10 Aug 2004 23:28:15 -0400, steve wrote: I believe you are right. And you can simplify as well: ($value1 != null) || ($value1 != "")) is equal to: ($value1 != ’’) [[don’t need the two statements]] or if you have doubts, use: (strlen($value1 ) > 0)
A variable assigned an empty string is _not_ the same as it being NULL.
if (!is_null($valu e1) and strlen($value1) < 1) {
Regards,
Ian
--
Ian.H
digiServ Network
London, UK http://digiserv.net/
On Wed, 11 Aug 2004 04:38:32 +0000, Ian.H wrote: On Tue, 10 Aug 2004 23:28:15 -0400, steve wrote:
I believe you are right. And you can simplify as well: ($value1 != null) || ($value1 != "")) is equal to: ($value1 != ’’) [[don’t need the two statements]] or if you have doubts, use: (strlen($value1 ) > 0)
A variable assigned an empty string is _not_ the same as it being NULL.
if (!is_null($valu e1) and strlen($value1) < 1) {
Oops:
if (!is_null($valu e1) and strlen($value1) > 0) {
Better =)
Regards,
Ian
--
Ian.H
digiServ Network
London, UK http://digiserv.net/
steve wrote: "Maxim Vexler" wrote: > if ((($value1 != null) || ($value1 != "")) && $value2 != "" && $value1 > > != $value2) { ret false } > > if i omit the [value2 != ""] i would still get the same result, right? > > because I check if value1 != "" and then I check if value1!=value2 > i.e. : > > if ((($value1 != null) || ($value1 != "")) && $value1 != value2) { ret > > false } > > regards, maxim.
I believe you are right. And you can simplify as well: ($value1 != null) || ($value1 != "")) is equal to: ($value1 != ’’) [[don’t need the two statements]] or if you have doubts, use: (strlen($value1 ) > 0)
in fact, and please correct me if I'm wrong :
the logic (($value1 != null) || ($value1 != "")) is totally useless !
because no matter what the input is you always get true from it, right? This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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