DIsplay msg if radiobutton is not selected by user.

Question

ankit.pandey3 -8 Junior Poster in Training

13 Years Ago

<html>
<title>Micro Elite Brigade - Registration</title><LINK REL="SHORTCUT ICON" HREF="images/favicon.png"><?php	
require_once('upper.php');
require_once('database.php');
echo $error_msg='';
if(isset($_POST['submit']))
{
$LoginId=mysqli_real_escape_string($dbc,trim($_POST['LoginId']));
$Password1=mysqli_real_escape_string($dbc,trim($_POST['Password1']));
$Password2=mysqli_real_escape_string($dbc,trim($_POST['Password2']));
$Name=mysqli_real_escape_string($dbc,trim($_POST['Name']));
$Age=mysqli_real_escape_string($dbc,trim($_POST['Age']));
$BloodGroup=mysqli_real_escape_string($dbc,trim($_POST['BloodGroup']));
/*if(!isset($_POST['Sex']))
{
echo 'Please enter Sex<br>';
}*/
//else{
$Sex= mysqli_real_escape_string($dbc,trim($_POST['Sex']));
//}
$Qualification=mysqli_real_escape_string($dbc,trim($_POST['Qualification']));
$ContactNumber=mysqli_real_escape_string($dbc,trim($_POST['ContactNumber']));
$Email=mysqli_real_escape_string($dbc,trim($_POST['Email']));
$Address=mysqli_real_escape_string($dbc,trim($_POST['Address']));
$AboutYourself=mysqli_real_escape_string($dbc,trim($_POST['AboutYourself']));
//$countCheck=count($_POST['checkbox']);
//echo $countCheck;
//$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(!isset($_POST['Sex'])){echo 'Please enter Sex';}
		elseif(empty($Qualification)){echo 'Please enter Qualification';}
		elseif(empty($ContactNumber)){echo 'Please enter Contact Number';}
		elseif(empty($Email)){echo 'Please enter Email';}
		elseif(empty($Address)){echo 'Please enter Address';}
		elseif(empty($AboutYourself)){echo 'Please enter About Yourself';}
		elseif(!isset($_POST['checkbox'])){ echo 'You have to register at least one activity.';}
		elseif(!isset($_POST['TermsAndConditions'])){ echo 'You have to agree all Terms and Conditions of Elite Brigade.';}
		else
		{
		require_once('database.php');
		$query="select * from registration where LoginId='$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].',';
		$query="insert into activity_participation (LoginId,Title,Date) values ('$LoginId','$checkbox[$i]',CURDATE())";
		$result=mysqli_query($dbc,$query) or die("Not Connected");
		}
		$query="insert into registration (LoginId,Password,Name,Age,BloodGroup,Sex,Qualification,ContactNumber,Email,Address,AboutYourself,Activity)values ('$LoginId',SHA('$Password1'),'$Name','$Age','$BloodGroup','$Sex','$Qualification','$ContactNumber','$Email','$Address','$AboutYourself',',$reg_id')";
		$result=mysqli_query($dbc,$query) or die("Not Connect");
		
		echo ' Dear '.$Name.'.<br>Your request has been mailed to admin.<br>Your account is waiting for approval<br>';
		$from= 'Elite Brigade';
		$to='ankitp@rsquareonline.com';
		$subject='New User Registration';
		$message="Dear admin,\n\nA new user request for registration. Please check it out.\n\nRegards\nMicro";
		mail($to,$subject,$message,'From:'.$from);
		//header('Location: index.php');
		//	header('Location: Registration.php');
		}
		else
		{
		echo 'Dear '.$Name. ', <br> An account already exist with login-id<b> '.$LoginId.'</b> <br>Please try another login-id';
		}}	
}		
?>

<html>
<head>
<link rel="stylesheet" type="text/css" href="css/style.css" />
<script type="text/javascript">
function lengthRestriction(elem, min, max){
	var uInput = elem.value;
	if(uInput.length >= min && uInput.length <= max){
		return true;
	}else{
		alert("Please enter between " +min+ " and " +max+ " characters");
		elem.value="";
		return false;
	}
}
function emailValidator(elem, helperMsg){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.value="";
		return false;
	}
}
</script>
  
</head>

<body>

<?php
echo $error_msg; ?>

<form action='<?php echo $_SERVER['PHP_SELF'];?>' id="commentForm" method='post'>
<div class="registration_and_activity">

<table border="0" cellspacing="0" cellpadding="0" width="380">
<tr><td colspan="2">
<br/><h3>New User?</h3></td></tr>
<tr><td width="120">

<em>*</em>Enter Login id</td><td width="150"><input type='text' name='LoginId' id='LoginId'  value='<?php if(!empty($LoginId))echo $LoginId;?>' onblur="lengthRestriction(document.getElementById('LoginId'), 6, 20)")/></td></tr>
<tr><td>
<em>*</em>Enter Password</td> <td><head>
      <SCRIPT language=Javascript>

function capLock(e){
 kc = e.keyCode?e.keyCode:e.which;
 sk = e.shiftKey?e.shiftKey:((kc == 16)?true:false);
 if(((kc >= 65 && kc <= 90) && !sk)||((kc >= 97 && kc <= 122) && sk))
 {
 if(document.getElementById('Password1').value=='')
  alert("Caps Lock is On");
  }
 else
  document.getElementById('divMayus').style.visibility = 'hidden';
}

</SCRIPT>

   </HEAD>
<input onkeypress='return capLock(event)' type='password' name='Password1' id="Password1"  value='<?php if(!empty($Password1))echo $Password1;?>' onblur="lengthRestriction(document.getElementById('Password1'), 4, 50)")/></td></tr>

<tr><td>
<em>*</em>Confirm Password</td><td><input type='password' name='Password2' value='<?php if(!empty($Password2))echo $Password2;?>' /></td></tr>
<tr><td width="120">
<em>*</em>Enter Name</td> <td><input type='text'  name='Name' Id="Name" value='<?php if(!empty($Name))echo $Name;?>' onblur="lengthRestriction(document.getElementById('Name'), 2, 30)")/></td></tr>
<tr><td>
<em>*</em>Enter Age</td><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>
<td><INPUT onkeypress='return isNumberKey(event)'  type='text' name='Age' value='<?php if(!empty($Age))echo $Age;?>'/></td></tr>

<tr><td>
<em>*</em>Enter Blood</td><td><input type='text' name='BloodGroup' value='<?php if(!empty($BloodGroup))echo $BloodGroup;?>' id="BloodGroup" onblur="lengthRestriction(document.getElementById('BloodGroup'), 1, 3)") /></td></tr>

<tr><td>
<em>*</em>Enter Sex</td><td><input type='radio' name='Sex'  style='width:16px; border:0;' value='Male'<?php if(isset($_POST['Sex'])) { echo "checked='checked'";} ?> />Male   <input type='radio' name='Sex' style='width:16px; border:0;' value='Female' <?php if(isset($_POST['Sex'])) { echo "checked='checked'";} ?> />Female</td></tr>

<tr><td>
<em>*</em>Enter Qualification</td><td><input type='text' name='Qualification'  value='<?php if(!empty($Qualification))echo $Qualification;?>' id="Qualification" onblur="lengthRestriction(document.getElementById('Qualification'), 3, 60)"/></td></tr>

<tr><td>
<em>*</em>Contact Number </td><td><input onkeypress='return isNumberKey(event)'type='text'  name='ContactNumber' value='<?php if(!empty($ContactNumber))echo $ContactNumber;?>' /></td></tr>

<tr><td>
<em>*</em>Enter Email</td><td><input type='text' name='Email'class="email" value='<?php if(!empty($Email))echo $Email;?>' id="emailer" onblur="emailValidator(document.getElementById('emailer'), 'Not a Valid Email')"/></td></tr>

<tr><td>
<em>*</em>Enter Address</td><td><input type='text' name='Address' value='<?php if(!empty($Address))echo $Address;?>' id="Address" onblur="lengthRestriction(document.getElementById('Address'), 2, 100)")/></td></tr>


<tr ><td >
<em>*</em>About Yourself </td></tr>
<tr><td colspan="2"><textarea rows='10' cols='40'  name='AboutYourself' id="AboutYourself" onblur="lengthRestriction(document.getElementById('AboutYourself'), 5, 500)") /><?php if(!empty($Address))echo $Address;?></textarea></td></tr>
<tr><td>

<?php echo"
<tr><td colspan='2'><em>*</em><b>Select fields for which you want to register</b></td></tr>";

require_once('database.php');
$query="select * from activity";
$result=mysqli_query($dbc,$query);
while($row=mysqli_fetch_array($result)){
$Title=$row['Title'];
$ActivityId=$row['ActivityId'];
echo "<tr><td>$Title</td>";
echo "<td><input type='checkbox' name='checkbox[]' value='$Title' style='width:14px; text-align:right;'/></td></tr>";//value=$ActivityId tells ActivityId variable extracts with name="checkbox"
echo "<br/>";
}
echo "
<tr>
<table border='0' cellspacing='0' cellpadding='0' width='400' style='margin:10px 0 0 0;'>
<td align='left' valign='top' scope='col' width='80'><em>*</em><input type='checkbox' name='TermsAndConditions'  style='width:14px; text-align:right;'/></td>
<td align='left' valign='top' scope='col'> I agree all <a href='TermsAndConditions.php'>Terms and conditions </a>of Elite Brigade.</td>
</table>
</tr>";
echo "<tr><td colspan='2' align='center'><input type='submit' value='Register' name='submit' style='background:url(./images/button_img2.png) no-repeat 10px 0px; width:100px; padding:3px 0 10px 0; color:#FEFBC4; border:0; margin:15px 0 5px 100px; '/></td></tr><br>";
	
echo " </td></tr></table>

</div>

</form>
</body>
</html>";
require_once('lower.php');

?>

Hi friends..........
I have two problems with this page.......
1--> When user not select radio button it should displays "Please enter Sex" but on submit it displays an error "Undefined index: Sex in C:\wamp\www\EliteBrigadeserver\RegistrationAndActivity.php on line 19
Please enter Sex."
I want to remove this notice........

2--> If user not fill any field and press submit then if user once selected his sex, it should remain selected.

Help me plz............
Anyone?????????
Thx in advance...................

php

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1 Reply
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9 Hours Discussion Span
Latest Post 13 Years Ago Latest Post by qazplm114477

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qazplm114477 14 Junior Poster · Answer 1 · 2011-03-03T15:39:27+00:00

you'll get an undefined index for $_POST if it doesn't exist in the $_POST array when the user fails to select it.

you can add some sort of validation for it like so.

if(isset( $_POST['Sex'] )){
   //filter
}

Or you could set the checked attribute to be checked by default, which brings me to your next question.

you can keep the user input even after the page has bee submitted with something like this

<input type='radio' value='FOO' <?php echo (isset($_POST['sex']) ? "checked = 'checked'" : ""); ?> />

the small bit of php code in there is called a ternary operator, it's the same as if else statements. http://php.net/manual/en/language.operators.comparison.php