Use NULL for $publicId to force 'SYSTEM' instead of 'PUBLIC' output.
PHP - Manual: XMLWriter::writeDtd
2024-11-11
(PHP 5 >= 5.1.2, PHP 7, PECL xmlwriter >= 0.1.0)
XMLWriter::writeDtd -- xmlwriter_write_dtd — Write full DTD tag
面向对象风格
$name
[, string $publicId
[, string $systemId
[, string $subset
]]] ) : bool过程化风格
$xmlwriter
, string $name
[, string $publicId
[, string $systemId
[, string $subset
]]] ) : boolWrites a full DTD.
xmlwriter
仅用于过程调用。被修改的 XMLWriter resource。此资源来自于对 xmlwriter_open_uri() 或 xmlwriter_open_memory() 的调用。
name
The DTD name.
publicId
The external subset public identifier.
systemId
The external subset system identifier.
subset
The content of the DTD.
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Use NULL for $publicId to force 'SYSTEM' instead of 'PUBLIC' output.
官方地址:https://www.php.net/manual/en/function.xmlwriter-write-dtd.php