How to find text inside { } in a string

Below is a sample text string ...

$test = "This is {just a small} sample text. This can actually be {very long} but in {this case it is short}.";

I need to get the text inside the { } into an array:
The string length is not fixed and it can be hundreds of { } in another sample...


Expected result:

$arr[0] = "just a small";
$arr[1] = "very long";
$arr[2] = "this case it is short";

Any idea how to do this in a fast and effectiv way ?

 

preg_match_all('%\{([^}]+)\}%',$input_text, $matches);
$arr = $matches[1];

PHP:

 

Thank's! Work's like a charm !!!

 

My pleasure