creating incremental variables from an exploded string

[ajna]

OK, I have searched and searched and can't seem to figure out exactly how to do this -- I think my syntax on some solutions may have been off, but I am not sure.

I want to take a pipe-delimited string and cycle through the contents so I can mark associated check boxes as checked or not.

Right now I have taken a short-cut/cheat:

Let's say I have a group of check boxes for a form. These check boxes are multiple selection named: performed[].

Upon processing I have the chosen boxes (each numbered sequentially) placed into a pipe delimited string and stored in my database. So if buttons 1 and 5 were checked I would have the following data: 1|5

Late when I need to be able to list or change the selected check boxes I want to be able to simply cycle through the pipe delimited list and set a variable related to each checkbox. ie: $selected1 = "checked"

Then I can simply set the appropriate echo in each checkbox tag.

<input name="performed[]" type="checkbox" <?=$selected1?> value="1">

Right now I have to cycle through the array and find my matches and then manually forcecheck each possible increment to set the variable to "CHECKED."

There has to be a way to do this more elegantly than entering a separate line of code for each incremented option. Right now I am using:

if ($array_str[$i] == "1") { $selected1 = "checked"; }
if ($array_str[$i] == "2") { $selected2 = "checked"; }
etc
etc

Thats fine for now, but is there something possible like:

$selected{$i} = "checked";

<?
    $array_str = explode("|", "$performed"); 
     for($i=0; $i<count($array_str); $i++) {

[INDENT]if ($array_str[$i] != '') {
if ($array_str[$i] == "1") { $selected1 = "checked"; }
if ($array_str[$i] == "2") { $selected2 = "checked"; }
if ($array_str[$i] == "3") { $selected3 = "checked"; }
if ($array_str[$i] == "4") { $selected4 = "checked"; }
if ($array_str[$i] == "5") { $selected5 = "checked"; }
if ($array_str[$i] == "6") { $selected6 = "checked"; }
}[/INDENT]

}
?>

Thanks!

[Installer]

Try this:

$array_str = explode('|', $performed);
for ($i = 1; $i <= $num_of_checkboxes; $i++) { 
    echo '<input name="performed[]" type="checkbox "';
    if (in_array($i, $array_str)) {
        echo 'selected="selected" ';
    }
    echo 'value="' . $i . '" />';
}

[ajna]

Thanks that looks great..I will have to test it out later tonight or tomorrow. However, since we are building the entire checkbox dynamically now, I have to make sure each box has the proper label. I think that could be solved with an array however and pulling the proper 'button label' according to the count value of $i.

Also, I had these buttons in a three column table...so dynamically creating each button might also mean having to simultaneously cycle through an on-the-fly table creation.

Anyways, I will check out the logic later to see how it could best be used.

Thanks!