Re: [PHP4BETA] how to get the name of a variable?

The main problem with your approach is that PHP variables cannot start with a digit. Prefix the name attribute with (say) a letter: <input type="radio" name="a1" value="pos"> <input type="radio" name="a1" value="neg"> Then in the PHP code, the variable $a1 will contain either "pos" or "neg" (if the radio button is selected, obviously). To iterate through a1 to a10 use something like : for ( $i=1; $i<=10; $i++ ) { $varname = "a$i"; echo "a$i = " . $$varname . "<br>"; } There are slightly nicer ways to do that in PHP4, like foreach() and while( list($k,$v) = each( $HTTP_POST_VARS ) ) { ... }, but I'll leave that as an excercise for the reader :) Cheers, Simon ----- Original Message ----- From: Juan Luis Baptiste To: php4beta@lists.php.net Sent: Tuesday, February 15, 2000 5:18 PM Subject: [PHP4BETA] how to get the name of a variable? Hi, I got varius radio buttons on a form like this: <input type="radio" name="1" value="pos"> <input type="radio" name="1" value="neg"> <input type="radio" name="2" value="pos"> <input type="radio" name="2" value="neg"> <input type="radio" name="3" value="pos"> <input type="radio" name="3" value="neg"> ....... They are a lot of them so I want to do something like a loop for getting the radio buttons values into a database. Is there a way of get the names of the variables? For example, I got this reult from the form: $1="pos"; $2="neg"; $3="pos"; .... and so on... the table have three columns--> id,exam_number, value. The values of the radio buttons have to be on the table like this: ID | exam_number | value ---------------------------------------- 101 | 1 | pos 102 | 2 | neg 103 | 3 | pos ...... 'ID' is an auto increment value, 'exam_number' is the name of the radio button variable and 'value' is the value of the radio button selected. Any ideas? Thanks,