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counting with three digits

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Jan 05.2004

hi all,

i have a situation where i need to dynamically generate a list of numbers in PHP, but i can’t just use something like count++, because i need to search the list later using substring() in javascript, which requires i know which characters to search. in other words, i need PHP to generate a list that looks like this:

001
002
003
…
034
035
…
123
124

(for example)

hope that makes sense! thanks!

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PHP

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@pyroJan 05.2004 — Use [URL=http://us3.php.net/str_pad]str_pad()[/URL], something like this:

[code=php]<?PHP
for ($i=1; $i<=150; $i++) {
echo str_pad($i, 3, 0, STR_PAD_LEFT)."<br />";
}
?[/code]
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@azazelauthorJan 05.2004 — excellent! thanks!

now, what would be the best way to implement something like the following? i'm creating a list of checkboxes, with each checkbox having a unique id, but falling within groups, like this:

[CODE]
<input type="checkbox" name="dl001grp001sub001">
[/CODE]

that would be a bottom level checkbox in a list that would look like this:

[CODE]
x dltop001
x dl001grp001
x dl001grp001sub001
x dltop002
x dl002grp001
x dl002grp001sub001
[/CODE]

hopefully this makes sense. thanks!
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