Smarty Manual
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regex_replace

A regular expression search and replace on a variable. Use the preg_replace() syntax from the PHP manual.

Parameter Position	Type	Required	Default	Description
1	string	Yes	n/a	This is the regular expression to be replaced.
2	string	Yes	n/a	This is the string of text to replace with.

Example 5-15. regex_replace


<?php

$smarty->assign('articleTitle', "Infertility unlikely to\nbe passed on, experts say.");

?>

Where template is:

{* replace each carriage return, tab and new line with a space *}

{$articleTitle}
{$articleTitle|regex_replace:"/[\r\t\n]/":" "}

Will output:

Infertility unlikely to
be passed on, experts say.
Infertility unlikely to be passed on, experts say.