Php/docs/libxml.constants
预定义常量
下列常量由此扩展定义,且仅在此扩展编译入 PHP 或在运行时动态载入时可用。
LIBXML_BIGLINES
(int)Allows line numbers greater than 65535 to be reported correctly.
Note:
Only available as of PHP 7.0.0 with Libxml >= 2.9.0
LIBXML_COMPACT
(int)Activate small nodes allocation optimization. This may speed up your application without needing to change the code.
Note:
Only available in Libxml >= 2.6.21
LIBXML_DTDATTR
(int)- Default DTD attributes
LIBXML_DTDLOAD
(int)- Load the external subset
LIBXML_DTDVALID
(int)- Validate with the DTD
LIBXML_HTML_NOIMPLIED
(int)Sets HTML_PARSE_NOIMPLIED flag, which turns off the automatic adding of implied html/body... elements.
Note:
Only available in Libxml >= 2.7.7 (as of PHP >= 5.4.0)
LIBXML_HTML_NODEFDTD
(int)Sets HTML_PARSE_NODEFDTD flag, which prevents a default doctype being added when one is not found.
Note:
Only available in Libxml >= 2.7.8 (as of PHP >= 5.4.0)
LIBXML_NOBLANKS
(int)- Remove blank nodes
LIBXML_NOCDATA
(int)- Merge CDATA as text nodes
LIBXML_NOEMPTYTAG
(int)Expand empty tags (e.g.
<br/>
to<br></br>
)Note:
This option is currently just available in the DOMDocument::save and DOMDocument::saveXML functions.
LIBXML_NOENT
(int)-
Substitute entities
Caution
Enabling entity substitution may facilitate XML External Entity (XXE) attacks.
LIBXML_NOERROR
(int)- Suppress error reports
LIBXML_NONET
(int)- Disable network access when loading documents
LIBXML_NOWARNING
(int)- Suppress warning reports
LIBXML_NOXMLDECL
(int)Drop the XML declaration when saving a document
Note:
Only available in Libxml >= 2.6.21
LIBXML_NSCLEAN
(int)- Remove redundant namespace declarations
LIBXML_PARSEHUGE
(int)Sets XML_PARSE_HUGE flag, which relaxes any hardcoded limit from the parser. This affects limits like maximum depth of a document or the entity recursion, as well as limits of the size of text nodes.
Note:
Only available in Libxml >= 2.7.0 (as of PHP >= 5.3.2 and PHP >= 5.2.12)
LIBXML_PEDANTIC
(int)Sets XML_PARSE_PEDANTIC flag, which enables pedantic error reporting.
Note:
Available as of PHP >= 5.4.0
LIBXML_XINCLUDE
(int)- Implement XInclude substitution
LIBXML_ERR_ERROR
(int)- A recoverable error
LIBXML_ERR_FATAL
(int)- A fatal error
LIBXML_ERR_NONE
(int)- No errors
LIBXML_ERR_WARNING
(int)- A simple warning
LIBXML_VERSION
(int)- libxml version like 20605 or 20617
LIBXML_DOTTED_VERSION
(string)- libxml version like 2.6.5 or 2.6.17
LIBXML_SCHEMA_CREATE
(int)Create default/fixed value nodes during XSD schema validation
Note:
Only available in Libxml >= 2.6.14 (as of PHP >= 5.5.2)