001+ Notice: DOMDocument::load(): failed to load external entity "books.dtd" in /Users/syh/Downloads/PHP安装/php-7.1.33/ext/dom/tests/book_with_dtd.xml, line: 2 in %s/DOMDocument_load_variation1.php on line 8
003+ Warning: DOMDocument::load(): Entity 'entitest' not defined in /Users/syh/Downloads/PHP安装/php-7.1.33/ext/dom/tests/book_with_dtd.xml, line: 13 in %s/DOMDocument_load_variation1.php on line 8