How to extarct the string words and special characters between curly brackets in php preg_match

Question

I have String like this

$string ="this is test {username} ,{password@123} and Other {asdfg@#$}"

I want this string as array format as follows

[1] => Array
        (
            [0] => username
            [1] => password@123
            [2] => asdfg@#$
        )

Answer 1

(?<={)[^}]+(?=})

Try this.This should work.

$re = "/(?<={)[^}]+(?=})/mi";
$str = "this is test {username} ,{password@123} and Other {asdfg@#\$}";

preg_match_all($re, $str, $matches);

Answer 2

$re = "/\{(.*?)\}/";
$str = "this is test {username} ,{password@123} and Other {asdfg@#\$}";

preg_match_all($re, $str, $matches);

print_r($matches);

this gives what you want