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


Although Smarty supplies this regex convenience modifier, it is usually better to apply regular expressions in PHP, either via custom functions or modifiers. Regular expressions are considered application code and are not part of presentation logic.


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


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


Will output:

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


See also replace and escape.

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