i want to validate a form field that is an array of input but is not working even input field is not showing
please help me
here is my form in php validation
please help me
here is my form in php validation
PHP:
<?php
include("header.php");
?>
<?php
session_start();
$class=$_SESSION['class']=$_POST['class'];
$sess=$_SESSION['session'] = $_POST['session'];
$sub=$_SESSION['subject'] = $_POST['subject'];
$term=$_SESSION['term'] = $_POST['term'];
include("config.php");
$query="SELECT * FROM student_information WHERE class='$class'";
$result = mysql_query($query);
$num_rows = mysql_num_rows($result);
// initialization
$photo_upload_fields = "";
$counter = 1;
// default number of fields
$number_of_fields = $num_rows;
// If you want more fields, then the call to this page should be like,
// preupload.php?number_of_fields=20
if( $_GET['number_of_fields'] )
$number_of_fields = (int)($_GET['number_of_fields']);
// Firstly Lets build the Category List
echo"<h1>class:$class</h1>";
echo"<br/>";
echo"<h1>session:$sess</h1>";
echo"<br/>";
echo"<h1>subject:$sub</h1>";
echo"<br/>";
echo"<h1>term:$term</h1>";
// Lets build the Photo Uploading fields
while( $counter <= $number_of_fields )
{
$row1 = mysql_fetch_row($result);
$sid = $row1['1'];
$photo_upload_fields .=<<<__HTML_END
<tr>
<td>
roll {$counter}:<input name='marks[]' type='text' />// want to validate
<input type='hidden' name='roll[]' value='$counter'/>
</td>
</tr>
<tr>
<td>
<input name='sid[]' type='hidden' value='$sid'/>
</td>
</tr>
<tr>
<td>
</td>
</tr>
<tr>
<td>
<input name='sub[]' type='hidden' value='$sub'/>
</td>
</tr>
<tr>
<td>
<input name='sess[]' type='hidden' value='$sess'/>
</td>
</tr>
<tr>
<td>
<input name='class[]' type='hidden' value='$class'/>
</td>
</tr>
<tr>
<td>
<input name='term[]' type='hidden' value='$term'/>
</td>
</tr>
__HTML_END;
$counter++;
}
// Final Output
echo <<<__HTML_END
<html>
<head>
<title>insert classtest marks</title>
<script language="JavaScript" type="text/javascript">
<!--
function checkform ( form )
{
if (form.marks.value == "") {
alert( "Please enter marks." );
form.marks.focus();
return false ;
}
// ** END **
return true ;
}
//-->
</script>
</head>
<body>
<form action='marksentry1.php' method='post' name='upload_form' onSubmit="return checkform(this);">
<table width='90%' border='0' align='center' style='width: 90%;'>
<tr>
<td>
<p> </p>
</td>
</tr>
<!-Insert the photo fields here -->
$photo_upload_fields
<tr>
<td>
<input type='submit' name='submit' value='Add marks' />
</td>
</tr>
</table>
</form>
</body>
</html>
__HTML_END;
?>