limit size of array

[tgavin]

I have a page with tens, or hundreds of products on it. The user can only pick 2.

I'm trying to figure out a way to limit the amount of items posted to two. The code below doesn't work properly (at least, I don't think it does!), but should give an idea of what I'm looking for.

 

<?php
if(isset($_POST['submit'])) {
$items = array();
foreach($_POST['item'] as $i=>$item){
	$c=0;
	while($c <= 2) {
		$items[$i] = $_POST['item'][$i];
		$c++;
	}
}
}
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<input type="checkbox" name="item[1]" value="1" /> lamp<br />
<input type="checkbox" name="item[2]" value="2" /> chair<br />
<input type="checkbox" name="item[3]" value="3" /> foobar<br />
<input type="submit" name="submit" value="submit" />
</form>

 

[laffin]

 

<?php
if(isset($_POST['submit'])) {
$items = array();
        $itemcount = count($_POST['item']);
        if($itemcount >2) $itemcount=2;
        if($itemcount) {
              for($i=0;$i<$itemcount;$i++)
                 $items[]=$_POST['item'][$i];
}
}
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<input type="checkbox" name="item[]" value="1" /> lamp<br />
<input type="checkbox" name="item[]" value="2" /> chair<br />
<input type="checkbox" name="item[]" value="3" /> foobar<br />
<input type="submit" name="submit" value="submit" />
</form>

 

 

That shud work

It can be written smaller, but to kep things readable

[tgavin]

Thank you.

 

Something's not working correctly though. If I print_r($items) I get

Array ( [0] => [1] => 1 )

 

I haven't been able to get it to show the item id numbers in the array. It always stops at 1. Also, I think this may have show a flaw in my plan. I want to be able to take the two items and insert them into mysql.

INSERT INTO (table) VALUES ($item[$i],$item[$i])

[laffin]

<?php
if(isset($_POST['submit'])) {
$items = array();
	$itemcount = count($_POST['item']);
	if($itemcount >2) $itemcount=2;
	if($itemcount) {
		  for($i=0;$i<$itemcount;$i++)
			 $items[]=$_POST['item'][$i];
	}
	if($ic=count($items)) {
		echo "$ic items<BR>";
		foreach($items as $key => $value)
			echo "$key) $value<BR>";
	} else
		echo "No Items<BR>";
}
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<input type="checkbox" name="item[]" value="1" /> lamp<br />
<input type="checkbox" name="item[]" value="2" /> chair<br />
<input type="checkbox" name="item[]" value="3" /> foobar<br />
<input type="submit" name="submit" value="submit" />
</form>

 

Add some debugging info to get a better idea of whats going on

 

the $items array will hold 0,1 or 2 items. the item id shud come from the value of a specific checkbox (not the name).

 

[tgavin]

Oops. I still had the id number in the checkbox name's brackets. name="item[2]"

 

thanks for everything!