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The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
LIBXML_BIGLINES
(int)
Note:
Only available as of PHP 7.0.0 with Libxml >= 2.9.0
LIBXML_COMPACT
(int)
Note:
Only available in Libxml >= 2.6.21
LIBXML_DTDATTR
(int)
LIBXML_DTDLOAD
(int)
LIBXML_DTDVALID
(int)
Enabling validating the DTD may facilitate XML External Entity (XXE) attacks.
LIBXML_HTML_NOIMPLIED
(int)
Note:
Only available in Libxml >= 2.7.7 (as of PHP >= 5.4.0)
LIBXML_HTML_NODEFDTD
(int)
Note:
Only available in Libxml >= 2.7.8 (as of PHP >= 5.4.0)
LIBXML_NOBLANKS
(int)
LIBXML_NOCDATA
(int)
LIBXML_NOEMPTYTAG
(int)
<br/>
to
<br></br>
)
Note:
This option is currently just available in the DOMDocument::save and DOMDocument::saveXML functions.
LIBXML_NOENT
(int)
Enabling entity substitution may facilitate XML External Entity (XXE) attacks.
LIBXML_NOERROR
(int)
LIBXML_NONET
(int)
LIBXML_NOWARNING
(int)
LIBXML_NOXMLDECL
(int)
Note:
Only available in Libxml >= 2.6.21
LIBXML_NSCLEAN
(int)
LIBXML_PARSEHUGE
(int)
Note:
Only available in Libxml >= 2.7.0 (as of PHP >= 5.3.2 and PHP >= 5.2.12)
LIBXML_PEDANTIC
(int)
Note:
Available as of PHP >= 5.4.0
LIBXML_XINCLUDE
(int)
LIBXML_ERR_ERROR
(int)
LIBXML_ERR_FATAL
(int)
LIBXML_ERR_NONE
(int)
LIBXML_ERR_WARNING
(int)
LIBXML_VERSION
(int)
LIBXML_DOTTED_VERSION
(string)
LIBXML_SCHEMA_CREATE
(int)
Note:
Only available in Libxml >= 2.6.14 (as of PHP >= 5.5.2)