Re: note 8545 added to Variable Functions

These notes have been deleted from the manual. The manual errata system is for submissions of text to be included in the manual itself, not as a question-and-answer forum; please make sure to read the instructions at http://www.php.net/manual/add-note.php before adding another note. You'll typically have better luck asking on the mailing list, at php-general@lists.php.net (send an email to php-general-subscribe@lists.php.net to subscribe, or go to http://www.php.net/support.php for more information and a signup form. As to the questions, Cedric is quite correct that you can use array notation in this way, but an easier way to get at the key/value pairs is as follows: while (list($key, $value) = each($ss)) { echo "$key => $value\n"; } ...which would print out something like this: 1 => firstvalue 2 => secondvalue . . . etc . . . where firstvalue and secondvalue would be the values entered into the $ss[1] and $ss[2] form fields, respectively. Cedric, the 'root array' you are looking for is called '$GLOBALS', which holds a reference to every variable which exists in the global scope of the script. Note that this means that $GLOBALS also contains a reference to itself, since it does exist in the global scope. Therefore, be careful when recursively accessing $GLOBALS. :) For a complete list of all server-related variables, you can use the globally defined $HTTP_SERVER_VARS; however, it will not exist if track_vars is not turned on. In versions of PHP >= 4.0.3, track_vars is always turned on. The following snippet: while (list($key, $value) = each($HTTP_SERVER_VARS)) { echo "$key => $value\n"; } will print out something like the following: DOCUMENT_ROOT => /home/torben/public_html/php3test HTTP_ACCEPT => image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */* HTTP_ACCEPT_CHARSET => iso-8859-1,*,utf-8 HTTP_ACCEPT_ENCODING => gzip HTTP_ACCEPT_LANGUAGE => en . . . etc . . . For more information on these variables, check out the following pages: http://www.php.net/manual/language.variables.predefined.php Hope this helps, Torben cedricshock@spamless.iname.com writes: > Joe, > > By renaming your variables $ss[1], $ss[2], ... , $ss[n] you will recieve an array $ss. > > You can then loop through them like so: > <? > reset $ss; //Reset the variable so you can loop through it with each. > while ($r = each($ss)) { > $keyname=$r[0]; //This will be 1, 2, ..., n > $value=$r[1]; //This will be its respective value. > } > ?> > > > I have a form submit n variables of the form > > $ss_1, $ss_2, ... , $ss_n . I now want to write a > > while loop that can go through and access > each of these variables sequentially, > > but php > > won't recognize $ss_$i as a variable or > > $"ss_$i" as a variable where $i is the number of > > times through the while loop. Does anyone > > know how to get around this? > > This is still a problem when trying to access the complete HTTP > headers, which get bundled up as HTTP_Header-Name. I don't know of > any way to get a listing of all variables in memory. There should be > a root array object which contains all the variables currently in > memory. > > --Cedric Shock > > http://www.php.net/manual/ref.var.php -- +----------------------------------------------------------------+ |Torben Wilson <torben@php.net> Netmill iTech| |http://www.coastnet.com/~torben http://www.netmill.fi| |Ph: 1 250 383-9735 torben@netmill.fi| +----------------------------------------------------------------+