note 6561 deleted from function.array-flip by irc-html
| From: | irc-html@php.net | Date: | Sat, 19 Jan 2002 21:01:15 +0000 |
| Subject: | note 6561 deleted from function.array-flip by irc-html | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-25454@lists.php.net to get a copy of this message | ||
To uniquify a list, this is better
$hash = array_flip($array);
$array = array_keys($hash);
Otherwise: If you just do two array_flip operations, you end up with a sparse array (the elements in
the old arrays that were duplicates are left as gaps).