preg_match for information in parentheses

问题

(ACCTG) Accounting

The text above I trying to get the information in the parentheses how would I do that in php this is what I have so far.

$regex = '#\((([^()]+|(?R))*)\)#';
if (preg_match_all($regex, $string ,$matches)) {
    echo implode(' ', $matches[1]);
} else {
    //no parenthesis
    echo $string;
}

回答1:

I do converting special characters to hex for easy use in my regex's

<?
$input = 'abc ("an example")';
if(preg_match("/\x28([^\x29]+)\x29/", $input, $matched)) { 
     //...         
    print_r($matched); 
} else { 
   //do something.. 
}
?>

回答2:

Wouldn't this be sufficient:

\(([^\)]*)\).*

来源：https://stackoverflow.com/questions/6378229/preg-match-for-information-in-parentheses