Array Controls

SwissMac

I've read the online manual, but got confused. My book doesn't help either.

I need to print out the elements in an array from $array1[3] to the last element in the array. The arrays length will vary from time to time so I either need to combine the count() function with one of the loops {for(), while() or do..while()} OR I need to adapt the foreach() function so that it starts at $array1[3] and then continues on it's merry way.

At the moment I have written out 100 different Print() statements which I know is crazy but I haven't learned anything better yet.

It sounds like the answer should be simple, but then so am I and I need some help... any ideas?

TIA

Mac

qo2o

$count = count($array1) - 1;
for($x = 3; $x <= $count; $x++){
        print "$array1[$x]";
}

sid

try

<?PHP

foreach ($array AS $key => $value) {
    if ($key >= 3) {
        print "\$array[" . $key . "] = " . $value . "<BR>";
    }
}

?>

hope this helps...

SwissMac

Originally posted by qo2o

$count = count($array1) - 1;
for($x = 3; $x <= $count; $x++){
        print "$array1[$x]";
}

[/B]

That's beautiful in its simplicity and power! It worked like a dream and not only looked really good in php form, it works fast too. Thanks - you're some developer! And I really learned some php from it... this eg should be in text books as an example of the function.

Sorry Sid, I just don't understand the bits about $key etc - is that your algebra or php's?

As soon as I got the other eg working I decided to stop looking - I've been working on this for five days now!

Many thanks both of you,

Mac

laserlight

qo2o's example can be further simplified to:

$count = count($array1);
for ($x = 3; $x < $count; $x++) {
	print $array1[$x];
}

this, actually, is a more common form, and is one reason why array indices start from 0.

sid's example uses the [man]foreach/man construct, which is an alternative looping mechanism in PHP for arrays.

qo2o

i have a less-than-or-equal-to fetish 🙁

SwissMac

Thanks a lot laserlight... that must make that the smallest number of characters for the script possible without making the variable names shorter! I love it... but as luck would have it tonight the servers gone down and I can't get access to update the file. Oh well.

I just love the power of php though. Just wish I wasn't so bad at learning from books... there just aren't enough different examples of each thing in books: I usually like four or five slightly different ones... that way I can spot the pattern and reuse it. I'm not as clever as you two... 🙁