Re: Emptying a Single Array Value

Note: using unset alone you will end up with an array containing non-contiuguous indicies. For the most part this is not a problem but in some cases can cause trouble. I'd suggest passing through the array_values() function to reindex the array after you have unset all of the unwanted elements. To count the number of elements in an array using the count() function.. $size = count($array); -Kevin ----- Original Message ----- From: "Martin Clifford" <MLC1@nrc.gov> To: <philip@cornado.com> Cc: <php-general@lists.php.net> Sent: Wednesday, June 12, 2002 1:10 PM Subject: Re: [PHP] Emptying a Single Array Value > I have an online example of the progam at http://www.recordconsulting.com/temp/shop.php. Each of the delete links use the corresponding index values for the array, and use the unset() function to remove them. > > While I'm here... how do I find the amount of information in an array? JavaScript parlance would be $array.length. > > Code is below: > > <snip> > <?php > > if($action == "delete") { > unset($item[$id]); > } > > $color = "#336699"; > > var_dump($item); > > for($counter = 0; $counter < 7; $counter++) { > $offset = $counter + 1; > echo "<tr><td width=\"80%\" bgcolor=\"$color\">\n"; > echo "Item " . $offset . ": " . $item[$counter]; > echo "</td>\n"; > echo "<td width=\"20%\" bgcolor=\"$color\">\n"; > echo "<a href=\"makelist.php?action=delete&id=$counter\" class=\"link\">Delete</a>\n"; > echo "</td></tr>\n\n"; > > if($color == "#336699") { > $color = "#6699CC"; > } else { > $color = "#336699"; > } > } > > ?> > </snip> > > Thanks! > > >>> Philip Olson <philip@cornado.com> 06/12/02 03:02PM >>> > > unset() works for this, how are you using it > exactly? Please post a short test script > that misbehaves for you. > > $arr = array('foo','bar'); > unset($arr[0]); > > print_r($arr); // only $arr[1] = 'bar' exists now > > See also: http://www.php.net/unset > http://www.php.net/array_splice > > Regards, > Philip Olson > > > On Wed, 12 Jun 2002, Martin Clifford wrote: > > > Howdy, > > > > If someone out there could tell me how to get rid of a single key/index pair within an array, it would be great. I've tried both unset() and empty(), but both destroy the entire array. > > > > Please CC me directly, as I'm on the digest. > > > > Thanks in advance! > > > > Martin > > > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >