如何为此做好循环？

Question

I have this array :

$values = Array
(
    [0] => foo-1
    [1] => foo-2
    [2] => foo-3
    [3] => foo-4
    [4] => foo-5
    [5] => foo-6
    [6] => foo-7
    [7] => foo-8
    [8] => foo-9
    [9] => foo-10
    [10] => foo11
       [...]
    [30] => foo-31
    [31] => foo-32
)

I need to explode the array all the 13 values, and get this :

echo "foo-1, foo-2, foo-3, foo-4, foo-5, foo-6 [...], foo-13";

echo "foo-14, foo-15, foo-16, foo-17 [...], foo-26";

echo "foo-27, foo-28, foo-29, foo-30, foo-31, foo-32";

So, this is my code :

$nVal = count($values);
$nbTab = $nVal / 13;
$nbTab = round($nbTab, 0, PHP_ROUND_HALF_UP);
for ($cpt = 0; $cpt <= $nbTab-1; $cpt++) {
$line = "";
if($cpt == 0)
 $cptEntete = $cpt*12;
else
 $cptEntete = ($cpt*12)+1;
echo "Cpt entete :".$cptEntete;

if($cpt+1 == $nbTab){
 $jusque = $nVal;
}
else{
 if($cpt == 0)
  $jusque = 12;
 else
  $jusque = 12*($cpt+1);
}

for($cptEntete;$cptEntete <= $jusque;$cptEntete++){
 $line.= $cptEntete." ,";
}

echo $line."<br />";

The problem is that I don't arrive to obtain good lines with my 13 values by line :(

Can help me please ?

Answer 1

Just try with:

$values = array( /* your data */ );
$parts = array_chunk($values, 13);

foreach ($parts as $part) {
    echo implode(', ', $part);
}