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Posted by ColdShine on 12/06/07 18:23
Remo in
news:f247e715-3d72-4412-9483-1af84a6c6203@b15g2000hsa.googlegroups.com
wrote:
> If I have two string variables like:
>
> $Media_A = "8.00"
> $Media_B = "8.86"
> and I try to use this statement in order to make a subtraction
> like:
> $Media_B - $Media_A, result is 0!
> Why????
>
> It's like two strings has been converted into integers.
> I say that, why, if I set $Media_B="9.86", new result is 1.
PHP is type-juggling strings as integers. So, "8.00" (parsing stops at first
non-digit) is 8, as is "8.86". And 8-8 is... yes.
And this also explains the second example: "9.86" is 9.
--
ColdShine
"Experience is a hard teacher: she gives the test first, the lesson
afterwards." - Vernon Sanders law
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