[RESOLVED] Form Validation

theknight

I have a list of radio buttons built using html:

 <input type="radio" name="role" value="aaaa" onclick="disableEnable(this.checked,'utype') "/>bbbb<br>
 <input type="radio" name="role" value="ccccc" onclick="enableDisable(this.checked,'utype')"/>dddd(Please specify)<br>
 <input type="radio" name="role" value="eeeet"/ onclick="disableEnable(this.checked,'utype')">ffff<br>
 <input type="radio" name="role" value="gggg" onclick="disableEnable(this.checked,'utype')"/>hhhh<br>
 <input type="radio" name="role" value="kkk"/ onclick="disableEnable(this.checked,'utype')"/>iiii<br>
 <br>

now if they select the radio field "dddd", the list below gets activated through javascript.

test: <select id='utype' name='utype' disabled=true>
	<option>Please Choose</option>
	<option>AL</option>
	<option>CA</option>
	<option>TX</option>
	<option>WI</option>

Now i want to use php to basically check if they have selected an option form the list only if they have selected the second radio button "cccc"

php code

I know you can do this:

if ($_POST) {
    if (isset($_POST['role']) && !isset($_POST['utype'])) {
        // Error, re-direct user back
        header('Header: form.html');
    } else {
        // Process data
    }
}

as a form of validation but the above does not differentiate between the different radio buttons in role, it treats them all as one. I want the php code to be able to differentiate between them. In javascript it would be done like this:

document.survey.role[b][1][/b].checked

With the specific radio button highlighted in bold

How can I do this? Thanks!

theknight

Right got it working guys, but it is not injecting my results into my database after running the validation check:

<?php

if (isset($_POST['Submit'])) {

$selected_radio = $_POST['handset'];
$selected_radio1 = $_POST['role'];
$list_type = $_POST['utype'];

if($selected_radio1=='Undergraduate_Other' && $list_type=='Please'){

print "Please enter the module code of course minoring in";
exit();

}

if($selected_radio=='Yes' && empty($_POST['mtype'])){

print "Text field is empty. Please enter your Handset model number";
exit();

}

/* Get all the inputs */
$mobilised  = $_POST['mobilised'];
$mchoice  = $_POST['mchoice'];
$useMobile    = $_POST['handset'];
$handsetType = $_POST['mtype'];
$buyData   = $_POST['dp'];
$haveData = $_POST['dpm'];
$upgradePhone = $_POST['upm'];
$prevTried = $_POST['prevDepart'];
$browseUni = $_POST['mobOften'];
$useNet   = $_POST['netMobile'];
$noneReason = $_POST['mwhy'];
$lectureTime  = $_POST['grp1'];
$relevantContact    = $_POST['grp2'];
$reportAbsences  = $_POST['grp3'];
$reportLate   = $_POST['grp4'];
$roomChange = $_POST['grp5'];
$newsfeed = $_POST['grp6'];
$job = $_POST['grp7'];
$examDate  = $_POST['grp8'];
$otherFunc    = $_POST['mfunc'];
$importance  = $_POST['speed'];
$persistance   = $_POST['compatible'];
$further = $_POST['mFin'];

/* Connect to the mySQL database */
$conn = mysql_connect("localhost","sam","test");

// the extra functions are to help clean the string up (if you have a text based input rather that multiple choice).
// repeat for all questions.
  mysql_select_db("test") or die(mysql_error);
  mysql_query("INSERT INTO csd VALUES ('$selected_radio1')");

mysql_close($conn);


/* Redirect visitor to the thank you page */
header('Location: thanks.htm');
Print "Your information has been successfully added to the database";

exit();

}

?>

Any idea why? thanks

sneakyimp

It could be a variety of things. The first one that occurs to me is that you may not have even connected to the database. You call this:

$conn = mysql_connect("localhost","sam","test");

And don't even check to see if it worked. Try reading the docs for [man]mysql_connect[/man] and you'd see that you should be checking for a valid connection or error conditions before trying to run a query. Same goes for mysql_query. It could be failing too.

djjjozsi

you may use mysql_error() instead of mysql_error ... mysql_error is just an undefined constans, not a valid function to get the last mysql error message.

theknight

Found the problem my sql query was failing. Thanks guys!