(Probable naivete on my part follows.) So... array_merge($a, $b) favors $a, while $a += $b favors $b? Wouldn't that mean that array_merge($a, $b) == $b += $a Or am I just being dense? :-) On Tuesday 17 January 2006 09:52, Karoly Negyesi wrote:
+= is not array_merge.
array_merge overwrites keys that are the same while += does not overwrite. (now, that I read PHP source code, I know that $a += $a; for arrays is nicely optimized: the add function immediately returns and does iterate / copy etc the whole array needlessly.)
In short: no, because
$form['foo'] = array('a' => 'b', 'c' => 'd'); $form['foo'] += array('a' => 'new b', 'e' => 'f');
would result in array('a' => 'b', 'c' => 'd', 'e' => 'f');
Regards
NK
-- Larry Garfield AIM: LOLG42 larry@garfieldtech.com ICQ: 6817012 "If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it." -- Thomas Jefferson