PHP preg_replace need help with pattern

Question

Exsample

preg_replace('/\{[a-zA-Z.,\(\)0-9]+\}/', 'Replaced', 'Lorem ipsum dolor sit {tag1({tag2()})}, consectetur adipiscing elit.');

The result:

Lorem ipsum dolor sit {tag1(Replaced)}, consectetur adipiscing elit.

Question

As you can see "tag2" has been replaced, But i whant to replace "tag1" Do anyone know how i can do this?

(In some cases it might be like this: {tag1({tag2({tag3()})})}) and so on.)

Btw iam actually using preg_replace_callback, but its easyer to show it with preg_replace

Here is a site where you can test the code: http://www.spaweditor.com/scripts/regex/index.php

Answer 1

You need to add curly braces to your character set. Here's the pattern I used:

/\{[a-zA-Z.,\(\)\{\}0-9]+\}/

And here was the result:

"Lorem ipsum dolor sit Replaced, consectetur adipiscing elit."