The outcome of this function is heavily dependent on the parser implementation used. For example, at the point where the start_element_ callback is called, libxml2 parser consumes the entire element name and attributes, however expat does not.
PHP - Manual: xml_get_current_byte_index
2024-11-12
(PHP 4, PHP 5, PHP 7, PHP 8)
xml_get_current_byte_index — 获取 XML 解析器的当前字节索引
$parser
): int获取指定的 XML 解析器的当前字节索引(current byte index)。
parser
指向要取得字节索引的 XML 解析器的引用。
如果 parser
没有指向一个合法的解析器,该函数将返回
false
,否则将返回解析器当前在其数据缓冲区中的字节索引(起始值为 0)。
该函数将返回根据UTF-8编码的文本的字节索引,而不论输入是否是其他的编码。
The outcome of this function is heavily dependent on the parser implementation used. For example, at the point where the start_element_ callback is called, libxml2 parser consumes the entire element name and attributes, however expat does not.
官方地址:https://www.php.net/manual/en/function.xml-get-current-byte-index.php