Fwd: Re: [PHP] Remove value from array

I also just discovered how to check for these keys with no value as isset() will return false: <?php $arr = array("foo" => "bar"); $arr["foo"] = NULL; print_r($arr); // you can see "foo" is still there if (array_key_exists("foo", $arr)) { echo("it's there!"); } ?> bvr. ==================BEGIN FORWARDED MESSAGE================== Yes, I read that one on this list and it reminded me of a problem where i used $Arr['cyanide'] = NULL; because the key was still defined after this. never figured unset() would do the trick because I always did = NULL. bvr. On Wed, 16 Jan 2002 17:45:21 -0500, Erik Price wrote: >This is a good one I just learned last week -- unset the variable. That >is, > >unset($Arr[2]); > >or > >unset($Arr['cyanide']); > >from what I understand, the discovery of this easy way to do this was >accidental. See the second annotation of "array_splice()" in the PHP >manual here for the details: >http://www.php.net/manual/en/function.array-splice.php ===================END FORWARDED MESSAGE===================