[PHP] Variable name as a variable?
I need to store a variable name as a variable. Note quite a C-style pointer, but a way to access one variable who's name is stored in another variable. As part of a spam-control measure, a certain public-facing form will have dummy rotating text fields and a hidden field that will describe which text field should be considered, like this: input type=text name=text_1 input type=text name=text_2 input type=text name=text_3 input type=hidden name=real_field value=text_2 As this will be a very general-purpose tool, a switch statement on the hidden field's value would not be appropriate here. Naturally, the situation will be much more complex and this is a non-obfuscated generalization of the HTML side of things which should describe the problem that I need to solve on the server side. Thanks in advance for any ideas. -- Dotan Cohen http://what-is-what.com http://gibberish.co.il -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Variable name as a variable?
On Mon, 2009-10-05 at 16:56 +0200, Dotan Cohen wrote: I need to store a variable name as a variable. Note quite a C-style pointer, but a way to access one variable who's name is stored in another variable. As part of a spam-control measure, a certain public-facing form will have dummy rotating text fields and a hidden field that will describe which text field should be considered, like this: input type=text name=text_1 input type=text name=text_2 input type=text name=text_3 input type=hidden name=real_field value=text_2 As this will be a very general-purpose tool, a switch statement on the hidden field's value would not be appropriate here. Naturally, the situation will be much more complex and this is a non-obfuscated generalization of the HTML side of things which should describe the problem that I need to solve on the server side. Thanks in advance for any ideas. -- Dotan Cohen http://what-is-what.com http://gibberish.co.il What's wrong with this: $user_value = $_REQUEST[$_REQUEST['real_field']]; Obviously this isn't production worthy code, you'd really need to put the whole thing in a ternary if to check if the values actually exist, but this would definitely solve your problem. Thanks, Ash http://www.ashleysheridan.co.uk
Re: [PHP] Variable name as a variable?
- Original Message From: Dotan Cohen dotanco...@gmail.com To: php-general. php-general@lists.php.net Sent: Mon, October 5, 2009 7:56:48 AM Subject: [PHP] Variable name as a variable? I need to store a variable name as a variable. Note quite a C-style pointer, but a way to access one variable who's name is stored in another variable. As part of a spam-control measure, a certain public-facing form will have dummy rotating text fields and a hidden field that will describe which text field should be considered, like this: input type=text name=text_1 input type=text name=text_2 input type=text name=text_3 input type=hidden name=real_field value=text_2 As this will be a very general-purpose tool, a switch statement on the hidden field's value would not be appropriate here. Naturally, the situation will be much more complex and this is a non-obfuscated generalization of the HTML side of things which should describe the problem that I need to solve on the server side. Thanks in advance for any ideas. -- Dotan Cohen http://what-is-what.com http://gibberish.co.il -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php You mean something like this? $var_name = text_2; echo $$var_name; // equivalent to echo $text_2; Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Variable name as a variable?
On Mon, 5 Oct 2009 16:56:48 +0200 Dotan Cohen dotanco...@gmail.com wrote: I need to store a variable name as a variable. Note quite a C-style pointer, but a way to access one variable who's name is stored in another variable. As part of a spam-control measure, a certain public-facing form will have dummy rotating text fields and a hidden field that will describe which text field should be considered, like this: input type=text name=text_1 input type=text name=text_2 input type=text name=text_3 input type=hidden name=real_field value=text_2 As this will be a very general-purpose tool, a switch statement on the hidden field's value would not be appropriate here. Naturally, the situation will be much more complex and this is a non-obfuscated generalization of the HTML side of things which should describe the problem that I need to solve on the server side. Thanks in advance for any ideas. Some reading on this if you're interested: http://us2.php.net/manual/en/language.variables.variable.php You can also access array properties using variables if you like: $foo-some_prop = 'Hi there!'; $bar = 'some_prop'; echo $foo-$bar; Regards, Torben -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
