Re: [PHP] strange empty array behavior being at in_array()
RTFM: http://www.php.net/manual/en/language.types.type-juggling.php
Peter Vereshagin wrote:
> Bogdan Stancescu wrote:
> >
> > Try in_array('pattern',array('')) and in_array(1,array(0)). The quirk you
> > found is predictable, as we know how PHP behaves when converting strings to
> > integer values...
>
> you mean PHP converts string pattern to integer before apply pattern?
> But what's the kind of technique? ASCII?
>
> > And 'pattern' evaluates to 0 -- '55pattern' for example
> > doesn't match -- but then again, what kinda word is that? :-)
>
> I see no reason not to consider it to evaluate to 0 the same way:)
> Either, you probably mean digits' sense? what kind of?
>
> > Peter Vereshagin wrote:
> >
> > > I think that would not be PHP error. But what's the thing I
> > > misunderstood?
>
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Re: [PHP] strange empty array behavior being at in_array()
Bogdan Stancescu wrote:
>
> Try in_array('pattern',array('')) and in_array(1,array(0)). The quirk you
> found is predictable, as we know how PHP behaves when converting strings to
> integer values...
you mean PHP converts string pattern to integer before apply pattern?
But what's the kind of technique? ASCII?
> And 'pattern' evaluates to 0 -- '55pattern' for example
> doesn't match -- but then again, what kinda word is that? :-)
I see no reason not to consider it to evaluate to 0 the same way:)
Either, you probably mean digits' sense? what kind of?
> Peter Vereshagin wrote:
>
> > I think that would not be PHP error. But what's the thing I
> > misunderstood?
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Re: [PHP] strange empty array behavior being at in_array()
Try in_array('pattern',array('')) and in_array(1,array(0)). The quirk you
found is predictable, as we know how PHP behaves when converting strings to
integer values... And 'pattern' evaluates to 0 -- '55pattern' for example
doesn't match -- but then again, what kinda word is that? :-)
HTH
Bogdan
Peter Vereshagin wrote:
> I think that would not be PHP error. But what's the thing I
> misunderstood?
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[PHP] strange empty array behavior being at in_array()
I wonder why something non-empty is considered to be an empty array
element:
===
if ( in_array('pattern', array( 0 ) ) )
print "Got it";
===
I got the true condition. However, after I populate the array with
antries other than 0 and ''
the condition fails.
I think that would not be PHP error. But what's the thing I
misunderstood?
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