PHP libxml functions

PHP libxml Introduction

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

Installation

These functions require the libxml package.Download at xmlsoft.org

PHP libxml functions

PHP：Indicate the earliest PHP version that supports this function.

Function Description PHP
libxml_clear_errors() Clear libxml error buffer. 5
libxml_get_errors() Retrieve the error array. 5
libxml_get_last_error() Retrieve the last error from libxml. 5
libxml_set_streams_context() Set stream context for the next libxml document loading or writing. 5
libxml_use_internal_errors() Disable libxml errors, allowing users to read error information as needed. 5

PHP libxml constants

Function Description PHP
LIBXML_COMPACT Set small node allocation optimization. It will improve the performance of the application. 5
LIBXML_DTDATTR Set default DTD attributes. 5
LIBXML_DTDLOAD Load external subsets. 5
LIBXML_DTDVALID Validate through DTD. 5
LIBXML_NOBLANKS Delete empty nodes. 5
LIBXML_NOCDATA Set CDATA as text node. 5
LIBXML_NOEMPTYTAG

Change empty tags (e.g., <br/> to <br></br>).

Available only in DOMDocument->save() and DOMDocument->saveXML() functions.

 5
LIBXML_NOENT Substitute entities. 5
LIBXML_NOERROR Do not display error reports. 5
LIBXML_NONET Stop network access when loading the document. 5
LIBXML_NOWARNING Do not display warning reports. 5
LIBXML_NOXMLDECL Undo XML declaration when saving the document. 5
LIBXML_NSCLEAN Remove additional namespace declarations. 5
LIBXML_XINCLUDE Use XInclude replacement. 5
LIBXML_ERR_ERROR Get recoverable errors. 5
LIBXML_ERR_FATAL Get fatal errors. 5
LIBXML_ERR_NONE Get no errors. 5
LIBXML_ERR_WARNING Get simple warnings. 5
LIBXML_VERSION Get the libxml version (e.g., 20605 or 20617). 5
LIBXML_DOTTED_VERSION Get the dotted libxml version (e.g., 2.6.5 or 2.6.17). 5