[RESOLVED] how to loop through an unknown number of $_POST checkboxes ?

I have a table with a checkbox in each row - and there can be any number of rows depending on the query result

the names of the checkboxes are created with $i in a loop ( "pr".$i ) and their values are e-commerce order numbers

when the form is submitted i need to go through all the checked checkboxes and get their values - so that i can delete them, print them or whatever

how would i do this ?

thanks for any help you can give

If you named them pr[$i] instead, then they'd form an array in PHP, and then you could loop over that the way you would any other array.

Any solution using the names you have now would be the same, except for an extra step where you build the array yourself.

Hi there - thanks for the reply

I'm sorry but I'm not sure I understand what you mean when you say to name them pr[$i]

this is my code for the checkboxes

echo"<td align=\"center\"><input name=\"pr".$i."\" style=\"width:20px;\" type=\"checkbox\" value=\"".$row2['comm_id']."\" /></td>\n";

How would I name the checkboxes here ?

thanks

I believe he means:

echo"<td align=\"center\"><input name=\"pr[".$i."]\" style=\"width:20px;\" type=\"checkbox\" value=\"".$row2['comm_id']."\" /></td>\n";

ok - I didn't even know it was possible to do that !!!

I'll give it a try

thanks to both of you

I'm still doing something wrong here

the form code now looks like this :

<input name="pr[2]" style="width:20px;" type="checkbox" value="82" />

I'm assuming that "br" is being received as an array, so in the page that receives the $_POST variables from the form i put

$numChk = count($_POST['br']);
echo "<br>".$numChk;

there are 4 checkboxes being sent but the value of $numChk is 0

I also tried

for($i=0;$i<=4;$i++){
	echo "<br>".$i." = ".$_POST['br'][$i];
}

where am i going wrong ?

thanks

Is it "br" or "pr"? You're using both.

erm ... yes - how frighteningly stupid of me - I hadn't even noticed that - sigh

I think it's one of those days ....

thanks for spotting that - it works perfectly now