锟斤拷锟斤拷锟斤拷锟斤拷指锟筋（PI锟斤拷锟斤拷锟斤拷锟斤拷

说锟斤拷

xml_set_processing_instruction_handler ( resource $parser , callable $handler ) : bool

为 parser 锟斤拷锟斤拷指锟斤拷锟斤拷 XML 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷指锟筋（PI锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷指锟斤拷锟斤拷锟斤拷锟铰革拷式锟斤拷

<?

target data

?>

锟斤拷锟斤拷锟皆斤拷 PHP 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷频谋锟绞讹拷锟斤拷校锟斤拷锟揭拷锟揭伙拷锟斤拷锟斤拷疲锟斤拷锟� XML 锟斤拷锟斤拷指锟筋（PI锟斤拷锟叫ｏ拷PI 锟斤拷锟斤拷止锟斤拷锟斤拷?>锟斤拷锟斤拷锟杰憋拷锟斤拷锟斤拷锟斤拷锟矫ｏ拷锟斤拷烁锟斤拷址锟斤拷锟斤拷胁锟接︼拷锟斤拷锟斤拷锟斤拷锟� PI 嵌锟诫到 XML 锟侥碉拷锟叫碉拷 PHP 锟斤拷锟斤拷锟叫筹拷锟街★拷锟斤拷锟斤拷剩锟铰碉拷 PHP 锟斤拷锟诫，锟斤拷锟斤拷"锟斤拷锟斤拷"锟斤拷 PI 锟斤拷止锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街凤拷锟斤拷锟捷达拷锟斤拷

锟斤拷锟斤拷

parser

XML 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫ｏ拷锟斤拷锟节斤拷锟斤拷锟斤拷锟斤拷指锟筋（PI锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

handler

锟斤拷锟斤拷 handler 为锟斤拷示锟斤拷锟斤拷锟斤拷锟狡碉拷锟街凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷为 parser 指锟斤拷锟侥斤拷锟斤拷锟斤拷锟斤拷锟斤拷 xml_parse() 锟斤拷锟斤拷时锟窖达拷锟节★拷

锟斤拷 handler 锟斤拷锟斤拷锟斤拷锟斤拷锟侥猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�

handler ( resource $parser , string $target , string $data )

parser: 锟斤拷一锟斤拷锟斤拷锟斤拷 parser 为指锟斤拷要锟斤拷锟矫达拷锟斤拷锟斤拷锟斤拷 XML 锟斤拷锟斤拷锟斤拷锟斤拷指锟诫。
target: 锟节讹拷锟斤拷锟斤拷锟斤拷 target 为 PI 锟斤拷锟斤拷PI target锟斤拷锟斤拷
data: 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 data 锟斤拷锟斤拷锟斤拷 PI 锟斤拷锟捷★拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿拷锟斤拷址锟斤拷锟斤拷锟斤拷锟� FALSE锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿★拷

Note: 锟斤拷锟剿猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫讹拷锟斤拷锟斤拷锟矫碉拷锟斤拷锟斤拷头锟斤拷锟斤拷锟揭诧拷锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷锟�

锟斤拷锟斤拷值

锟缴癸拷时锟斤拷锟斤拷 TRUE锟斤拷锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE锟斤拷