Smarty 2 regex replace, string + any number

Question

I'm trying to do a regex replace (http://www.smarty.net/docsv2/en/language.modifier.regex.replace.tpl) using smarty but I'm unsure of the correct regex syntax.

What im trying to achieve is turning:

i-am-something-specific-thing-1
i-am-something-specific-thing-2
i-am-something-specific-thing-3
i-am-something-specific-thing-4

into i-am-something

Any pointers and explanations as how the regex syntax would look like for this would be much appreciated.

p.s.w.g · Accepted Answer · 2013-07-16 10:53:49Z

2

I'm not really familiar with smarty, but it looks like you want something like this:

{$someVariable|regex_replace:"/-specific-thing-\d+$/":""}

This should remove -specific-thing- followed by any digit, when it appears at the end of a the string.

Update To replace that section of the string in a file name, use:

{$someVariable|regex_replace:"/-specific-thing-\d+\.html$/":".html"}

or this, which will work for any extension:

{$someVariable|regex_replace:"/-specific-thing-\d+(\.\w+)$/":"\\1"}

edited Jul 16, 2013 at 10:53

answered Jul 16, 2013 at 10:25

p.s.w.g

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4 Comments

HamZa Over a year ago

Psssst, you forgot specific :)

user319940 Over a year ago

Many thanks for the answer; I've tried it but it doesn't seem to be working- would it make a different if what I'm replacing is in fact i-am-something-specific-thing-1.html to be i-am-something.html?

user319940 Over a year ago

Excellent - thanks a bunch! I really must learn regex better - do you know of any good resources?

p.s.w.g Over a year ago

regular-expressions.info or the PHP manual are good places to start.

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