libxml Functions

简介

These functions/constants are available since PHP 5.1.0 and if you have compiled one of the extensions based on libxml, like DOM, SimpleXML and XSLT.

需求

This extension requires » libxml >= 2.6.0.

预定义类

LibXMLError

属性

  • code - the error's code

  • column - the column where the error occurred. Please note that this property isn't entirely implemented in libxml and therefore 0 is often returned.

  • file - the filename, or empty if the XML was loaded from a string

  • level - the severity of the error (one of the following constants: LIBXML_ERR_WARNING, LIBXML_ERR_ERROR or LIBXML_ERR_FATAL)

  • line - the line where the error occurred

  • message - the error message

预定义常量

以下常量由本扩展模块定义,因此只有在本扩展模块被编译到 PHP 中,或者在运行时被动态加载后才有效。

LIBXML_COMPACT (integer)
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 (integer)
Default DTD attributes
LIBXML_DTDLOAD (integer)
Load the external subset
LIBXML_DTDVALID (integer)
Validate with the DTD
LIBXML_NOBLANKS (integer)
Remove blank nodes
LIBXML_NOCDATA (integer)
Merge CDATA as text nodes
LIBXML_NOEMPTYTAG (integer)
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 (integer)
Substitute entities
LIBXML_NOERROR (integer)
Suppress error reports
LIBXML_NONET (integer)
Disable network access when loading documents
LIBXML_NOWARNING (integer)
Suppress warning reports
LIBXML_NOXMLDECL (integer)
Drop the XML declaration when saving a document

Note: Only available in Libxml >= 2.6.21

LIBXML_NSCLEAN (integer)
Remove redundant namespaces declarations
LIBXML_XINCLUDE (integer)
Implement XInclude substitution
LIBXML_ERR_ERROR (integer)
A recoverable error
LIBXML_ERR_FATAL (integer)
A fatal error
LIBXML_ERR_NONE (integer)
No errors
LIBXML_ERR_WARNING (integer)
A simple warning
LIBXML_VERSION (integer)
libxml version like 20605 or 20617
LIBXML_DOTTED_VERSION (string)
libxml version like 2.6.5 or 2.6.17

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