wordwrap

|wordwrap modifier

Wraps a string to a column width, the default is 80. As an optional second parameter, you can specify a string of text to wrap the text to the next line, the default is a carriage return \n. By default, wordwrap will attempt to wrap at a word boundary. If you want to cut off at the exact character length, pass the optional third parameter as TRUE.

Parameter Position	Required	Default	Description
1	No	80	This determines how many columns to wrap to.
2	No	\n	This is the string used to wrap words with.
3	No	FALSE	This determines whether or not to wrap at a word boundary (FALSE), or at the exact character (TRUE).

see also wordwrap in PHP Smarty documentation