0 vs false

[esingley@gmail.com]

So, this was driving me insane today, and I'm sure there's an easy
answer that I'm just missing.

Say I have an expression where 0 is acceptable as a TRUE response. But
how, in PHP, do I say that 0 = true since it treats 0 = FALSE = "".
For example, if I look for "foo" in a string using strpos:

if (strpos("foo bar", "foo")) {
echo "foo found at the beginning of the phrase.";
}

This should evaluate to TRUE, but it doesn't since it finds "food" at
position 0, which then evaluates to FALSE.

I tried casting, isset, is_null, and a few other siller options. I
eventually worked around it by using substr_count, but mostly I'm just
curious about the general answer to the question.

Thanks.

[Jerry Stuckle]

Re: 0 vs false

esingley@gmail. com wrote:[color=blue]
> So, this was driving me insane today, and I'm sure there's an easy
> answer that I'm just missing.
>
> Say I have an expression where 0 is acceptable as a TRUE response. But
> how, in PHP, do I say that 0 = true since it treats 0 = FALSE = "".
> For example, if I look for "foo" in a string using strpos:
>
> if (strpos("foo bar", "foo")) {
> echo "foo found at the beginning of the phrase.";
> }
>
> This should evaluate to TRUE, but it doesn't since it finds "food" at
> position 0, which then evaluates to FALSE.
>
> I tried casting, isset, is_null, and a few other siller options. I
> eventually worked around it by using substr_count, but mostly I'm just
> curious about the general answer to the question.
>
> Thanks.
>[/color]

if (strpos("foo bar", "foo") !== false) {
echo "foo found";
}

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

[Geoff Berrow]

Re: 0 vs false

Message-ID: <1145846522.785 908.162290@u72g 2000cwu.googleg roups.com> from
esingley@gmail. com contained the following:
[color=blue]
>
>Say I have an expression where 0 is acceptable as a TRUE response. But
>how, in PHP, do I say that 0 = true since it treats 0 = FALSE = "".[/color]

You'll be embarrassed to learn that there is a section on is in the
manual. ;-)

http://uk.php.net/strpos

--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
Simple RFDs http://www.ckdog.co.uk/rfdmaker/

[esingley@gmail.com]

Re: 0 vs false

Argh, a RTFM would have saved me an hour. Thanks, though! That, of
course, solved my problem right away.

[esingley@gmail.com]

Re: 0 vs false

Argh, a RTFM would have saved me an hour. Thanks, though! That, of
course, solved my problem right away.