Smarty Manual
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string_format

This is a way to format strings, such as decimal numbers and such. Use the syntax for sprintf() for the formatting.

Parameter Position	Type	Required	Default	Description
1	string	Yes	n/a	This is what format to use. (sprintf)

Example 5-18. string_format


<?php

$smarty->assign('number', 23.5787446);

?>

Where template is:

{$number}
{$number|string_format:"%.2f"}
{$number|string_format:"%d"}

Will output:

23.5787446
23.58
24

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