PHP libxml Functions
PHP libxml Introduction
The libxml functions and constants are used together with SimpleXML, XSLT and DOM functions.
Installation
These functions require the libxml package. Download at xmlsoft.org
PHP libxml Functions
PHP: indicates the earliest version of PHP that supports the function.
| Function | Description |
|---|---|
| libxml_clear_errors() | Clears the libxml error buffer |
| libxml_disable_entity_loader() | Enables the ability to load external entities |
| libxml_get_errors() | Gets the errors from the libxml error buffer |
| libxml_get_last_error() | Gets the last error from the libxml error buffer |
| libxml_set_external_entity_loader() | Changes the default external entity loader |
| libxml_set_streams_context() | Sets the streams context for the next libxml document load or write |
| libxml_use_internal_errors() | Disables the standard libxml errors and enables user error handling |
PHP Predefined libxml Constants
| Constant | Description |
|---|---|
| LIBXML_BIGLINES | Make line numbers greater than 65535 to be reported correctly |
| 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_HTML_NOIMPLIED | Set HTML_PARSE_NOIMPLIED flag. This turns off automatic adding of implied html/body elements |
| LIBXML_HTML_NODEFDTD | Set HTML_PARSE_NODEFDTD flag. This prevents a default doctype to be added, if no doctype is found |
| 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_PARSEHUGE | Set XML_PARSE_HUGE flag. This relaxes any hardcoded limit from the parser, such as maximum depth of a document or the size of text nodes |
| LIBXML_PEDANTIC | Set XML_PARSE_PEDANTIC flag. This enables pedantic error reporting |
| 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) |
| LIBXML_SCHEMA_CREATE | Create default or fixed value nodes during XSD schema validation |
