src/curlient/StringFilter.php
public static function concat($content, ...$args) {
		array_unshift($args, 'concat');

		return self::getInstance()->filter($content, [$args]);
	}
public static function concat($content, ...$args) {
		array_unshift($args, 'concat');

		return self::getInstance()->filter($content, [$args]);
	}
通过正则(简易正则，使用'参数'代表.+?))匹配后再根据规则合并字符（类似于preg_match_callback）.

@param string $content
@param array  ...$args

@return string