How to manadatory checkboxes without display Server error to user

ankit.pandeyc012 · November 18, 2010

<?php
echo $error_msg='';
if(isset($_POST['submit']))
{
$LoginId=$_POST['LoginId'];
$Password1=$_POST['Password1'];
$Password2=$_POST['Password2'];
$Name=$_POST['Name'];
$Age=$_POST['Age'];
$BloodGroup=$_POST['BloodGroup'];
$Sex=$_POST['Sex'];
$Qualification=$_POST['Qualification'];
$Email=$_POST['Email'];
$Address=$_POST['Address'];
$AboutYourself=$_POST['AboutYourself'];
[b]$countCheck=count($_POST['checkbox']);
echo $countCheck;[/b]
//$checkbox=$_POST['checkbox'];
//$countCheck=count($checkbox);
if(empty($LoginId)){echo 'Please enter Login Id';}
elseif(empty($Password1)){echo 'Please enter Password';}
elseif(empty($Password2)){echo 'Please confirm Password';}
elseif($Password1!==$Password2){echo 'Password didn\'t match';}
	elseif(empty($Name)){echo 'Please enter Name';}
	elseif(empty($Age)){echo 'Please enter Age';}
	elseif(empty($Sex)){echo 'Please enter Sex';}
	elseif(empty($Qualification)){echo 'Please enter Qualification';}
	elseif(empty($Email)){echo 'Please enter Email';}
	elseif(empty($Address)){echo 'Please enter Address';}
	elseif(empty($AboutYourself)){echo 'Please enter About Yourself';}
	[b]elseif($countCheck==0){ echo 'You have to register at least one activity.';}[/b]
	else
	{
	$dbc=mysqli_connect('localhost','root','','nog');
	$query="select * from registration where LoginId='$LoginId'";
	$result=mysqli_query($dbc,$query);
	if(mysqli_num_rows($result)==0)	
	{		
	$checkbox=$_POST['checkbox'];
	$countCheck=count($_POST['checkbox']);
	$reg_id=' ';
	for($i=0;$i<$countCheck;$i++)
	{
	$reg_id=$reg_id.$checkbox[$i].',';
	}
	$query="insert into registration (LoginId,Password,Name,Age,BloodGroup,Sex,Qualification,Email,Address,AboutYourself,Activity)values ('$LoginId',SHA('$Password1'),'$Name','$Age','$BloodGroup','$Sex','$Qualification','$Email','$Address','$AboutYourself','$reg_id')";
	$result=mysqli_query($dbc,$query) or die("Not Connect");

	echo ' Dear '.$Name.'.<br>Your Account is waiting for approval<br>';
	echo "<a href='RegistrationAndActivity.php'>Back to Home</a>";
	//header('Location: index.php');
	//	header('Location: Registration.php');
	}
	else
	{
	echo 'Dear '.$Name. ' <br>Account already exist with Login Id '.$LoginId.' <br>Try another Login Id';
	}}	
}		
?>

<html>
<body>
<?php
echo $error_msg; ?>
<h3>New User?</h3>
<form action='<?php echo $_SERVER['PHP_SELF'];?>' method='post'>

Enter Login id<br><input type='text' name='LoginId' value='<?php if(!empty($LoginId))echo $LoginId;?>'/><br>
Enter Password<br><input type='password' name='Password1' value='<?php if(!empty($Password1))echo $Password1;?>'/><br>
Confirm Password<br><input type='password' name='Password2' value='<?php if(!empty($Password2))echo $Password2;?>'/><br>
Enter Name<br><input type='text' name='Name' value='<?php if(!empty($Name))echo $Name;?>'/><br>
Enter Age<br><HEAD>
   <SCRIPT language=Javascript>
      
      function isNumberKey(evt)
      {
         var charCode = (evt.which) ? evt.which : event.keyCode
         if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;

         return true;
      }
  
  
     
   </SCRIPT>
   </HEAD>
<INPUT onkeypress='return isNumberKey(event)' type='text' name='Age' value='<?php if(!empty($Age))echo $Age;?>'><br/>
Enter Blood<br><input type='text' name='BloodGroup'value='<?php if(!empty($BloodGroup))echo $BloodGroup;?>'/><br>
Enter Sex<br><input type='text' name='Sex'value='<?php if(!empty($Sex))echo $Sex;?>'/><br/>
Enter Qualification<br><input type='text' name='Qualification' value='<?php if(!empty($Qualification))echo $Qualification;?>'/><br>
Enter Email<br><input type='text' name='Email' value='<?php if(!empty($Email))echo $Email;?>'/><br>
Enter Address<br><input type='text' name='Address' value='<?php if(!empty($Address))echo $Address;?>'/><br>
About Yourself<br/><textarea rows='10' cols='22' name='AboutYourself' value='<?php if(!empty($AboutYourself))echo $AboutYourself;?>'></textarea><br/>

<?php echo"
<b>Select fields for which you want to register</b><br/>";

$dbc=mysqli_connect('localhost','root','','nog');
$query="select * from activity";
$result=mysqli_query($dbc,$query);
while($row=mysqli_fetch_array($result)){
$Title=$row['Title'];
$ActivityId=$row['ActivityId'];
echo $Title;
//echo $ActivityId;
[b]echo "<input type='checkbox' name='checkbox[]' value=$ActivityId />"[/b];//value=$ActivityId tells ActivityId variable extracts with name="checkbox"
echo "<br/>";
}
echo "<input type='submit' value='Register' name='submit'/><br>";

echo "</form>
</body>
</html>";?>

Hi friends.........
In above code I want to manadatory the checkboxes which works properly as well but when user not select any checkbox it should display "You have to register at least one activity." according to above code but user get an extra server error also "Notice: Undefined index: checkbox in C:\wamp\www\NGOProject\RegistrationAndActivity.php on line 16

You have to register at least one activity. "

I don't want to display this extra server error "Notice: Undefined index: checkbox in C:\wamp\www\NGOProject\RegistrationAndActivity.php on line 16" to user...............

PLz help me ..........

Anyone???????????????

Thx in advance..................

sasa · November 18, 2010

change

$countCheck=count($_POST['checkbox']);

to

$countCheck= isset($_POST['checkbox']) ? count($_POST['checkbox']) : 0;

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How to manadatory checkboxes without display Server error to user

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