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Triple Equals === Twayne 07-28-2008
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Posted by Twayne on July 28, 2008, 2:18 pm
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Silly question time maybe: But it looks like, from a little playing,
that "===" may be able to replace "if isset"? It apparently only
returns true of the input box exists, and has been filled in?

Just curious; only played with it, not used it a lot yet; thought I'd
see what you guys thought of it first.

TIA,

Twayne



Posted by Jerry Stuckle on July 28, 2008, 3:16 pm
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 Twayne wrote:
> Silly question time maybe: But it looks like, from a little playing,
> that "===" may be able to replace "if isset"? It apparently only
> returns true of the input box exists, and has been filled in?
>
> Just curious; only played with it, not used it a lot yet; thought I'd
> see what you guys thought of it first.
>
> TIA,
>
> Twayne
>
>
>

It will produce an E_NOTICE if the variable is not set.

That's why there is isset().

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================


Posted by Michael Fesser on July 28, 2008, 3:18 pm
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.oO(Twayne)

>Silly question time maybe: But it looks like, from a little playing,
>that "===" may be able to replace "if isset"? It apparently only
>returns true of the input box exists, and has been filled in?

'===' is the same as '==', but also performs a type check. Using it on
a non-existing variable will still cause an E_NOTICE error (check your
error_reporting if necessary, make sure it's set to E_ALL or even
E_ALL|E_STRICT).

Micha

Posted by Twayne on July 28, 2008, 4:58 pm
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> Silly question time maybe: But it looks like, from a little playing,
> that "===" may be able to replace "if isset"? It apparently only
> returns true of the input box exists, and has been filled in?
>
> Just curious; only played with it, not used it a lot yet; thought I'd
> see what you guys thought of it first.
>
> TIA,
>
> Twayne

Thank you both; the devil is always in the details<g>. E_STRICT is news
to me for some reason; I'll go check what it's about asap.

Thanks much,

Twayne



Posted by Erwin Moller on July 29, 2008, 4:28 am
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Twayne schreef:
>> Silly question time maybe: But it looks like, from a little playing,
>> that "===" may be able to replace "if isset"? It apparently only
>> returns true of the input box exists, and has been filled in?
>>
>> Just curious; only played with it, not used it a lot yet; thought I'd
>> see what you guys thought of it first.
>>
>> TIA,
>>
>> Twayne
>
> Thank you both; the devil is always in the details<g>. E_STRICT is news
> to me for some reason; I'll go check what it's about asap.

E_STRICT is also relatively new to the language. ;-)

Regards,
Erwin Moller

>
> Thanks much,
>
> Twayne
>
>

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