RE: [PHP] Array of CheckBoxes

Well, if you have this: <input type='checkbox' name='name[]' value='one'> <input type='checkbox' name='name[]' value='two'> Then on your processing page, you'll have $HTTP_POST_VARS['name'][] array. If one was checked, then you'll have $HTTP_POST_VARS['name'][0] == 'one'. To see how many boxes were checked, you can do count($HTTP_POST_VARS['name']); Hope that helps... ---John Holmes... > -----Original Message----- > From: César Aracena [mailto:icaam@icaam.com.ar] > Sent: Tuesday, June 25, 2002 11:16 PM > To: holmes072000@charter.net; 'PHP General List' > Subject: RE: [PHP] Array of CheckBoxes > > Ok. Now, I like the idea of creating the array from the "name[]" of the > checkbox, but if I point it to phpinfo.php it won't show the name[] > array passed trough $HTTP_POST_VARS, so I don't know see how the script > will know if a checkbox even exist. How does PHP handle this? > > > -----Original Message----- > > From: John Holmes [mailto:holmes072000@charter.net] > > Sent: Tuesday, June 25, 2002 11:56 PM > > To: 'César Aracena'; 'PHP General List' > > Subject: RE: [PHP] Array of CheckBoxes > > > > Hmm..only problem with this is that if a checkbox is not checked, it's > > variable isn't set at all. > > > > <input type='checkbox' name='one' value='1'> > > <input type='checkbox' name='two' value='2'> > > > > If you check 'one', you have a variable $one == 1. If you leave 'two' > > blank, then you get nothing. $two isn't set at all. > > > > So, the first part of your solution is easy, the array of values that > > were checked... > > > > <input type='checkbox' name='name[]' value='one'> > > <input type='checkbox' name='name[]' value='two'> > > <input type='checkbox' name='name[]' value='three'> > > > > So when that is submitted, as long as one checkbox was checked, you'll > > have a $name[] array that contains one, two, or three, based on which > > ones were checked. > > > > What you could do, if you know how many checkboxes there were supposed > > to be, is use something like this... > > > > <input type='checkbox' name='name[1]' value='one'> > > <input type='checkbox' name='name[2]' value='two'> > > <input type='checkbox' name='name[3]' value='three'> > > > > the process like this: > > > > <? > > for($x=0;$x<$Num_Checkboxes;$x++) > > { > > if(!isset($name[$x])) > > { $name[$x] = FALSE; } > > } > > ?> > > > > That'll check for missing keys in the $name array and assign a false > > value to them... > > > > Anyway...I'm rambling... :) > > > > ---John Holmes... > > > -----Original Message----- > > > From: César Aracena [mailto:icaam@icaam.com.ar] > > > Sent: Tuesday, June 25, 2002 10:38 PM > > > To: PHP General List > > > Subject: [PHP] Array of CheckBoxes > > > > > > Hi all. > > > > > > I have a form in which I must add a set of check boxes at the > bottom. > > > Once the form is passed away, the information of the checked boxes > > > should be inserted into a DB. The thing is that I don’t like to use > > > ‘tons’ of “if” statements ‘cause it will have way too many check > > boxes… > > > Is there any way of creating an Array which holds TRUE for check > boxes > > > that where selected and NULL for the ones leaved clear? The final > > table > > > with the data stored should look like this: > > > > > > > > > +---------+-----------------+-----------+-----------+-----------+------- > > > -----+-----------+ > > > | userid | date | option1 | option2 | option3 | option4 | > > > option5 | > > > > > > +---------+-----------------+-----------+-----------+-----------+------- > > > -----+-----------+ > > > | 1 | 2002-06-25 | true | true | false | false > > > | true | > > > | 2 | 2002-06-25 | false | true | true | false > > > | false | > > > | 2 | 2002-06-25 | true | false | false | true > > > | true | > > > > > > +---------+-----------------+-----------+-----------+-----------+------- > > > -----+-----------+ > > > > > > Haw can this be achieved? If no can do, I will have to do if… else > if… > > > else if… else if… and way too far down the page… else. > > > > > > Thanks in advance, > > > > > > <mailto:webmaster@icaam.com.ar> Cesar Aracena > > > CE / MCSE+I > > > Neuquen, Argentina > > > +54.299.6356688 > > > +54.299.4466621 > > > > > > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php