PHP pcre正则表达式查找大括号的内容

Question

I need PHP pcre regex to find content of all curly brackets... Why is this regex doesn't work?

<?php

    $str = "test{it}test{/it}test";
    $ret = preg_match_all("#\{.?\}#u", $str, $matches);
    print_r($matches);

?>

I expect $matches to contain {it} and {/it} - but it's empty....

Answer 1

I think this is the version you are looking for: {.*?} with the * before the ?

$re = "/{.*?}/"; 
$str = "test{it}test{/it}test"; 

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