PHP: accessing sequentially numbered POST entries

I'm going to have html form that is going to send out chunks of text labeled 'chunk1', 'chunk2', 'chunk3' up to a potentially unknown number. Is there a way to sequentially开发者_运维技巧 go through $_POST['chunk1'] and so on until one isn't set? I could do a foreach but the foreach is going to contain other POST values too.

how about:

for ( $i=1 ; isset($_POST['chunk'.$i]) ; $i++) {
  // Do your stuff
}

just use

<input name="chunk[0]">
<input name="chunk[1]">
...

and in PHP then

$_POST['chunk'][$i] ....

Just do your foreach, and check each key entry to make sure it starts with 'chunk'.

foreach ($_POST as $key => $val) {
    if (strstr($key,"chunk") === false) continue;
    //do stuff
}

$chunks = preg_grep('/^chunk\d+$/', array_keys($_POST));

this'll return an array of just the POST entries that are chunk1, chunk2, etc...