Re: Using a variable in a variable or as the second part of an array?

From: Date: Sat, 20 Jan 2001 09:19:02 +0000
Subject: Re: Using a variable in a variable or as the second part of an array?
References: 1  Groups: php.general 
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> I need to simulate this effect: $array[$i] or \$something . $i, and have it > return $checkbox1 $checkbox2 etc. on up in a while loop. > Just doing it doesn't seem to work, but does anyone know of any work > arounds? Or just the keyword I should be looking for to search the manual? You could be using "variable variables" to do that, but for checkboxes, it's way more better to use arrays: <INPUT TYPE=CHECKBOX NAME=checkbox[1] VALUE=42> <INPUT TYPE=CHECKBOX NAME=checkbox[2] VALUE='Life, the Universe, and Everything'> Now your processing page can just iterate through $checkbox: while (list($key, $value) = each($checkbox)){ echo "$key -- $value was checked<BR>\n"; } Only thing to watch out for -- If nothing is checked, $checkbox won't be an array, and each() will give an error message. So add this above that: if (!isset($checkbox)){ $checkbox = array(); } This checkbox/array stuff is in the FAQ, so read that http://php.net/FAQ.php and the "variable variables" is in the online manual also. > I have a form being generated from a database. For every entry in the > database, there'll be a checkbox in the form. Basically, I need a way of > accessing the values of that checkbox (any or all of the checkboxes can be > checked, too). The names of the checkbox would increment up like checkbox1 > checkbox2 etc. Since I have no clue how many people are in the database, > that increment needs to be some sort of variable, so I can read the value > from that checkbox (whether or not it's checked) when the form is submitted. > Did that make any sense? Sorry I was so vague. > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net >

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