RE: [PHP] For Loops and Variables??
| From: | Chris W. Parker | Date: | Tue, 16 Sep 2003 23:07:26 +0000 |
| Subject: | RE: [PHP] For Loops and Variables?? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-162799@lists.php.net to get a copy of this message | ||
John Ryan <mailto:celticfc@iol.ie>
on Saturday, September 13, 2003 9:26 AM said:
> When I use for loops, at the start of each iteration, the variables
> hold the values from the last loop.
You're doing it wrong then (I think).
1. You should always initialize your loop counters.
i.e.
$x = 0;
while($x < 100)
{
$x++;
}
2. Don't use the same counter name in all your loops.
This is bad:
for($x=0;$x<100;$x++)
{
for($x=0;$x<100;$x++)
{
echo "i'm going to go on forever!!";
}
}
This Is Good(tm):
for($x=0;$x<100;$x++)
{
for($x=0;$x<100;$x++)
{
echo "Me happy now!!";
}
}
Does that help?
Chris.