How to Exclude selection and all related (MySQL + PHP) - php

Question

I am trying to solve a mysteries code that writing a number in a choice I will get all opposite of that number
I did almost done with that the only problem with it I might have the opposite recalled as he does have another recorded in another course
In more word my PHP about courses when I do ask MY PHP course it well give me all people how did not take course 1 but some people were recalled as they have other courses
The Problem when I choose For Example Course X I do get All Who Did not Take Course X But Some where Called From The same Table cause They Do Have Taken Other Courses In the same table
I did resolve The first Problem Using the following code
if(isset($_GET['course_guid']) && $_GET['course_guid']!="" )
$f.=" AND s.course_guid != '".$_GET['course_guid']."'";
And I Did Create Another page Select.php To Omit All Identified People from Orig.php using The Following Code
<?php
if(isset($_GET['id']))
foreach($_GET as $key => $post)
$_GET[$key]=m($post);
$ff="";
if(isset($_GET['id']) && $_GET['id']!="")
$ff.=" AND cs.id = '".$_GET['id']."' ";
$prns =(isset($_GET['prn'])? $_GET['prn']:'');
if(isset($prns) && $prns!="")
$ff.=" AND cs.prn = '".$prns."' ";
$course_guids =(isset($_GET['course_guid'])? $_GET['course_guid']:'');
if(isset($course_guids) && $course_guids!="")
$ff.=" AND cs.course_guid = '".$course_guids."' ";
$from_time=system_time();
$date_from= date("d",$from_time)."-".date("m",$from_time)."-".date("Y",$from_time);
$date_to=date("d",system_time())."-".date("m",system_time())."-".date("Y",system_time());
if(isset($_GET['alldates']) && $_GET['alldates']=="on") {
$t_f=mktime(0,0,0,6,1,2011);
$t_t=system_time();
} else {
$t_f=mktime(0,0,0,substr($date_from,3,2),substr($date_from,0,2),substr($date_from,6,4));
$t_t=mktime(23,59,59,substr($date_to,3,2),substr($date_to,0,2),substr($date_to,6,4));
}
$query="SELECT cs.id,cs.prn,cs.course_guid FROM courses_attend cs
WHERE cs.time BETWEEN $t_f AND $t_t
$ff
";
//echo "$prns";
$rs22 = mysql_query($query) or die(mysql_error());
// $total22 = mysql_num_rows($rs22);
/*
while($row22=mysql_fetch_assoc($rs22))
{
$prnss =(isset($row22['prn'])? $row22['prn']:'');
print($prnss);
}
*/
?>
print($prnss); // this should be the code needed to be recalled In Orig.php
and It should Be Called Inside a loop mysql_fetch_array which is cannot be Used In orig.php Cause I do already Have a structure and Another Loop In that page Cause real Output Interface is there
as far as I do know I do think function callback() would be a solve on the other hand I do not know how to create one

Answer 1

// Answer
for ($i= 0; $i < mysql_num_rows($rs22);$i++) {
$row22 = mysql_fetch_assoc($rs22);
$prnss = $row22['prn'];
// echo "$prnss"; // return print all Omitted data
// echo "<br />\n";
$f.=" AND s.prn != '".$prnss."' ";
}
Solved By Adding This In Orig.php
On the other hand and after testing Select.php DATA can be added TO the Orig.php
Best regards