PHP 文本抽出成ini文件

function arr2ini(array $a, array $parent = array())
{
    $out = '';
    foreach ($a as $k => $v)
    {
        if (is_array($v))
        {
            //subsection case
            //merge all the sections into one array...
            $sec = array_merge((array) $parent, (array) $k);
            //add section information to the output
            $out .= '[' . join('.', $sec) . ']' . PHP_EOL;
            //recursively traverse deeper
            $out .= arr2ini($v, $sec);
        }
        else
        {
            //plain key->value case
            $out .= "$k=$v" . PHP_EOL;
        }
    }
    return $out;
}


$strings = file_get_contents(__DIR__ .'/logs/v.d');

    $lb = [];

    $line = preg_replace_callback(
        '/([\x{4e00}-\x{9fa5}]+)/um',
        function ($matches) use (&$lb) {
            if (isset($matches[0])) {
                $piy = \WiPortal\Helper\PinyinLib::topinyin($matches[0]);

                $lb[ $piy ] = $matches[0];

                return "%({$piy})%";
            }
        },
        $strings
    );

    // \WiPortal\Helper\Debuger::dump($lb, $line);
    highlight_string($line);

    file_put_contents(__DIR__ .'/logs/v.x', $line);

    $ini = arr2ini($lb);
    file_put_contents(__DIR__ .'/logs/v.i', $ini);

    \WiPortal\Helper\Debuger::dump($lb);