for出解决思路

for出


function Call_css($str,$cid){
$as= explode(",", $str);
foreach ((array)$as as $Name) {
$IDcss = explode(":", $Name);
if($IDcss[0]==$cid){
echo $IDcss[1]."
";
}else{
echo $cid."---
";
}
}

}

for($i=1;$i<=12;$i++) {
Call_css("5:TG1,6:TG2,11:TG3,12:TG44",$i);

}
?>

怎样做到这样
1---
2---
3---
4---
TG1
TG2
7--
8--
9--
10--
TG3
TG44

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------解决方案--------------------

function Call_css($str, $cid){

  preg_match_all('/(\d+):([^,]+)/', $str, $r);

  $r = array_combine($r[1], $r[2]);

  echo (isset($r[$cid]) ? $r[$cid] : "$cid---") . '
';

}



for($i=1;$i<=12;$i++) {

  Call_css("5:TG1,6:TG2,11:TG3,12:TG44",$i);

}

1---
2---
3---
4---
TG1
TG2
7---
8---
9---
10---
TG3
TG44