grup random

<?php
/*
dicoba beberapa kali (refresh).. berhasil menyebar sampe masing2 10
tetapi malah coba/refresh.. dapet 14?!?
*/
$maxLoop=5;
$mhsOk=0;
$grup1=0;
$loop=9;

if (($handle = fopen("mahasiswa.csv", "r")) !== FALSE) {
    $mhs=array();$row=0;
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
        //$num = count($data);
        //echo "<p> $num fields in line $row: <br /></p>\n";
        $row++;
        if($row==1)continue;
/*
        for ($c=0; $c < $num; $c++) {
            echo $data[$c] . "<br />\n";
        }
*/
        $a=array('nama'=>$data[0],'id'=>sprintf("15%02s%05s",$data[2],$row),'gender'=>$data[1], 'falCode'=>$data[2], 'stat'=>0);
        $mhs[]=$a;

    }
    fclose($handle);
}

$total=count($mhs);
$nGroup=ceil($total / 10);

 shuffle($mhs);
$rule0=array('male'=>6,'female'=>4,'falCode'=>array());
$rule=$rule0;$grup1++;

//echo "<hr>Grup $grup1";

while($mhsOk<$total){
    $loop--;
    if($loop<1) break;
    foreach($mhs as $id=>$dt){
        //check rule
        $ok=1;
        //====sudah masuk?
        $stat=$dt['stat'];
        if($stat==1)continue;
        //===gender
        $gender=strtoupper($dt['gender']);
        if($gender=='P'&&$rule['female']<1){$ok=0;}
        if($gender=='L'&&$rule['male']<1){$ok=0;}
        if($ok==0)continue;

        //===jurusan
        $jurusan=$dt['falCode'];
        if(isset($rule['falCode'][$jurusan])&&$rule['falCode'][$jurusan]>1)$ok=0;
        if($ok==0)continue;

        $mhs[$id]['stat']=1;
        $groupMhs[$grup1][]=$mhs[$id];
        //echo'<hr>';var_dump($mhs[$id]);
        if($gender=='P'  ){$rule['female']--;}
        if($gender=='L'  ){$rule['male']--;}
        $mhsOk++;
        if(!isset($rule['falCode'][$jurusan])){
            $rule['falCode'][$jurusan]=1;
        }else{
            $rule['falCode'][$jurusan]++;
        }

        if(count($groupMhs[$grup1])==10){
            $grup1++;
            $rule=$rule0;
            //echo "<hr>Grup $grup1";
            $loop=$maxLoop;
        }

    }

    if($loop==1){
        $grup1++;
        $rule=$rule0;
        //echo "<hr>Grup $grup1";
        $loop=$maxLoop;
    }
    //if($loop!=4){ echo "<br/>loop=$loop ".json_encode($rule);}
}

echo "<br>Mahasiswa Yang Dapat kelompok:$mhsOk dari $total";
if($mhsOk!=$total){
    $mhsFail=array();
    foreach($mhs as $id=>$dt){
            if($dt['stat']==0)$mhsFail[]="$id=> ".json_encode($dt);

    }

    echo "<ol><li>".implode("</li><li>",$mhsFail)."</li></ol>";
}

foreach($groupMhs as $id=>$team){
    $s="<br/>Group $id<ol>";
    foreach($team as $dt){
        $s.="<li>$dt[nama] ($dt[gender]) =>$dt[falCode]</li>\n";
    }
    $s.="</ol>";
    echo $s;
}
/*
echo json_encode(array('data'=>$groupMhs,'created'=>'Gunawan');

*/