Robert Cummings wrote:
On Wed, 2007-03-14 at 12:57 +0100, Tijnema ! wrote:
On 3/14/07, Myron Turner <turnermm02@xxxxxxx> wrote:
Richard Lynch wrote:
On Tue, March 13, 2007 6:04 pm, Jonathan Kahan wrote:
This did fix the problem but I am amazed that
$s%$d=0 would be interpereted as a statement assigning d to 0 since
there is
some other stuff in front of d... I would think that would produce an
error
at compile time since $s%$d is an illegal variable name. Normally when
my
php script errors at compile time nothing will display to the screen.
You still have not correctly puzzled out what $s % $d = 0 is doing...
The = operator takes precedence, and $d is set to 0.
But why? According to the manual, the modulus operator has precedence
over the equals! So shouldn't this expression resolve to:
($s % $d) = 0
which gives an error?
Might it be that it generates only an error in specific error levels?
Simple proof of precedence problem:
<?php
$x = 6; $y = 4;
echo ($x%$y=5)."\n";
echo ($x%$y=4)."\n";
?>
Cheers,
Rob.
This illustrates what in fact happens. But I still don't understand
why, since, given the precedence of these operators, the = should be
applied after the modulus. The expression should resolve to ($x % $y) =
5 and not to $x % ($y=5). Or shouldn't it?
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Myron Turner
http://www.room535.org
http://www.bstatzero.org
http://www.mturner.org/XML_PullParser/
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