hi.
ok, so i've always been under the impression that count()ing during the
expression of a loop was much inefficient when compared to count()ing
just before the loop expression.
GOOD:
<?php
$the_array_cnt = count($the_array);
for($i = 0; $i < $the_array_cnt; $i++)
{
...
}
?>
BAD:
<?php
for($i = 0; $i < count($the_array); $i++)
{
...
}
?>
but then i did some tests and found that only on very large arrays is
there any difference between the two. count()ing outside of the loop was
only marginally better.
i also tried performing the same operation using foreach() and it was
slightly faster than count()ing within the loop and slightly slower than
count()ing outside the loop.
somone pointed out in a post to a message board that php handles the
result of a count() in a special way and so it therefore does not need
to count the array more than once each pass through the loop? can
someone confirm?
thanks,
chris.
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
