i created an array like this
while{
$ir = 0;
$stud[$row_mrk['id_sub']][$ir]=$row_mrk['id_sub']; $ir++;
$stud[$row_mrk['id_sub']][$ir]=$row_mrk['seminar_topic']; $ir++;
$stud[$row_mrk['id_sub']][$ir]=$row_mrk['seminar_mark']; $ir++;
$stud[$row_mrk['id_sub']][$ir]=$row_mrk['attendance']; $ir++;
$stud[$row_mrk['id_sub']][$ir]=$row_mrk['internal_mark']; $ir++;
$stud[$row_mrk['id_sub']][$ir]=$row_mrk['external_mark']; $ir++;
}
echo "<input type='hidden' name='ar_std' id='ar_std' value='$stud' /> </table>" ;
and it is able to print in the same page using
foreach ($stud as $v1) {
echo "$v1\n<br>";
foreach ($v1 as $v2) {
echo "$v2\n<br>";
}
}
and in the next page
$ar_stud[]=$_POST["ar_std"];
I'm getting an error
PHP Warning: Invalid argument supplied for foreach() in save.php on line 25
PHP Stack trace: