PHP 5 libxml Functions

PHP 5 libxml Functions

PHP libxml Introduction

The libxml functions and constants are used together with SimpleXML, XSLT and DOM functions.


These functions require the libxml package. Download at

PHP libxml Functions

PHP: indicates the earliest version of PHP that supports the function.

Function Description
libxml_clear_errors() Clear libxml error buffer
libxml_get_errors() Retrieve array of errors
libxml_get_last_error() Retrieve last error from libxml
libxml_set_streams_context() Set the streams context for the next libxml document load or write
libxml_use_internal_errors() Disable libxml errors and allow user to fetch error information as needed

PHP 5 Predefined libxml Constants

Function Description
LIBXML_COMPACT Set small nodes allocation optimization. This may improve the application performance
LIBXML_DTDATTR Set default DTD attributes
LIBXML_DTDLOAD Load external subset
LIBXML_DTDVALID Validate with the DTD
LIBXML_NOBLANKS Remove blank nodes
LIBXML_NOCDATA Set CDATA as text nodes
LIBXML_NOEMPTYTAG Change empty tags (e.g. <br/> to <br></br>), only available in the DOMDocument->save() and DOMDocument->saveXML() functions
LIBXML_NOENT Substitute entities
LIBXML_NOERROR Do not show error reports
LIBXML_NONET Stop network access while loading documents
LIBXML_NOWARNING Do not show warning reports
LIBXML_NOXMLDECL Drop the XML declaration when saving a document
LIBXML_NSCLEAN Remove excess namespace declarations
LIBXML_XINCLUDE Use XInclude substitution
LIBXML_ERR_ERROR Get recoverable errors
LIBXML_ERR_FATAL Get fatal errors
LIBXML_ERR_NONE Get no errors
LIBXML_ERR_WARNING Get simple warnings
LIBXML_VERSION Get libxml version (e.g. 20605 or 20617)
LIBXML_DOTTED_VERSION Get dotted libxml version (e.g. 2.6.5 or 2.6.17)