Re: to find out which checkbox is checked

Hello Jacky! Try to echo the variable to see its value. HTH ----- Original Message ----- From: "Jacky@lilst" <jacky@activelifestyle.com> To: <php-general@lists.php.net> Sent: Wednesday, April 18, 2001 10:19 PM Subject: [PHP] to find out which checkbox is checked > Hi all, > I still cannot get my problem sought out, pretty desparate here so decided > to post my question again. > Allow me to repeat my question again: > I have a form with the checkbox like this > <form> > <?php > $query="select id from foo"; > $result=($query,$con); > while ($row = mysql_fetch_array($result)) > { > print("<input type="checkbox" name="$id" > value="on">"); > } > ....submit button and stuffs here... > ?> > </form> > > After I submit to next page, at next page, how do I check which check box is > checked? > I did try isset() and empty() to check if variable exist ( as shown below) > and did not work as the result always turn up to be "off" > > if((empty($id))=='true'){ > echo "off"; > }else{ > echo "on"; > } > > And I also try > if(isset($id)) > { > ..do echo off here... > }else{ > ...do echo on.... > } > > And the result is always "off" as well. > > Somene advice me to use $http_var_gets btu I could not find it from manaual, > is that the solution I need? > cheers > Jack > jacky@activelifestyle.com > "There is nothing more rewarding than reaching the goal you set for > yourself" > ----- Original Message ----- > From: Jacky <jacky@activelifestyle.com> > To: Chris Fry <chris@quillsoft.com.au> > Cc: <php-general@lists.php.net> > Sent: Wednesday, April 18, 2001 2:57 PM > Subject: Re: [PHP] Variable variable > > > > I did look up in the manual for $HTTP_GET_VARS but could not find it? what > > is it? a function? > > sorry to ask this again, just try to find out how to use that. > > Jack > > jacky@activelifestyle.com > > "There is nothing more rewarding than reaching the goal you set for > > yourself" > > ----- Original Message ----- > > From: Chris Fry <chris@quillsoft.com.au> > > To: Jacky <jacky@activelifestyle.com> > > Cc: <php-general@lists.php.net> > > Sent: Wednesday, April 18, 2001 2:59 AM > > Subject: Re: [PHP] Variable variable > > > > > > > Sorry - thought you only had one! - it's late. > > > > > > To Name the checkboxes you need: > > > <?php > > > while (get records from db) { > > > $id = id from record; > > > ?> > > > <input type="checkbox" name ="<?php print $id; > > > ?>"> > > > <?php > > > } > > > ?> > > > > > > You would have to do a $HTTP_GET_VARS on the next page to find out which > > ones > > > exist. > > > > > > Then your select statement would be: > > > > > > $query = "select * from table where id IN ('comma delimited list of > > values')"; > > > > > > Messy but do-able! > > > > > > Probably a better way - There usually is! > > > > > > Chris > > > > > > Jacky wrote: > > > > > > > so how do I check at the next page which one is checked? > > > > Jack > > > > jacky@activelifestyle.com > > > > "There is nothing more rewarding than reaching the goal you set for > > > > yourself" > > > > ----- Original Message ----- > > > > From: Chris Fry <chris@quillsoft.com.au> > > > > To: Jacky <jacky@activelifestyle.com> > > > > Cc: <php-general@lists.php.net> > > > > Sent: Wednesday, April 18, 2001 2:31 AM > > > > Subject: Re: [PHP] Variable variable > > > > > > > > > Jacky, > > > > > > > > > > You do not need the value. The variable $id will either exist (if > the > > user > > > > checked it) or not (if the user did not check it). > > > > > > > > > > Hope this helps. > > > > > > > > > > Chris > > > > > > > > > > Jacky wrote: > > > > > > > > > > > Hi all > > > > > > I have a form with check box and name of those checkboxes is > usuing > > > > variable lke this, > > > > > > > > > > > > <!-- I got the value $id from a table and looping them and assign > > them > > > > to the check box name--> > > > > > > <input type="checkbox" name ="$id" > > > > > > value="on"> > > > > > > > > > > > > and when I submit the form to page foo.php4, at that page, I use > > > > Variable variable to call the value of the check box to see if it > > checked > > > > like this > > > > > > > > > > > > $quey = "select id from table"; > > > > > > $result = ...... ( assumeing it is done and i got value for $id > for > > all > > > > records from table) > > > > > > > > > > > > if ($$id =="on"){ > > > > > > echo "on"; > > > > > > }else{ > > > > > > echo "off"; > > > > > > } > > > > > > > > > > > > It always returns echo "off", why is that? > > > > > > cheers > > > > > > Jack > > > > > > jacky@activelifestyle.com > > > > > > "There is nothing more rewarding than reaching the goal you set > for > > > > yourself" > > > > > > > > > > -- > > > > > Chris Fry > > > > > Quillsoft Pty Ltd > > > > > Specialists in Secure Internet Services and E-Commerce Solutions > > > > > 10 Gray Street > > > > > Kogarah > > > > > NSW 2217 > > > > > Australia > > > > > > > > > > Phone: +61 2 9553 1691 > > > > > Fax: +61 2 9553 1692 > > > > > Mobile: 0419 414 323 > > > > > eMail: chris@quillsoft.com.au > > > > > http://www.quillsoft.com.au > > > > > > > > > > You can download our Public CA Certificate from:- > > > > > > > > > > https://ca.secureanywhere.com/htdocs/cacert.crt > > > > > > > > > > > ********************************************************************** > > > > > > > > > > This information contains confidential information intended only for > > > > > the use of the authorised recipient. 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