我怎样才能从preg_match获得命名的捕获？

Question

  

可能重复：
  how to force preg_match preg_match_all to return only named parts of regex expression

我有这个片段：

$string = 'Hello, my name is Linda. I like Pepsi.';
$regex = '/name is (?<name>[^.]+)\..*?like (?<likes>[^.]+)/';

preg_match($regex, $string, $matches);

print_r($matches);

打印：

Array
(
    [0] => name is Linda. I like Pepsi
    [name] => Linda
    [1] => Linda
    [likes] => Pepsi
    [2] => Pepsi
)

我怎样才能让它返回：

Array
(
    [name] => Linda
    [likes] => Pepsi
)

无需过滤结果数组：

foreach ($matches as $key => $value) {
    if (is_int($key)) 
        unset($matches[$key]);
}

Answer 1

无论命名捕获组

，

preg_match将始终返回数字索引

Answer 2

return array(
    'name' => $matches['name'],
    'likes' => $matches['likes'],
);

某种过滤器，当然。