Resource Types
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XML Parser
PHP Manual

# Predefined Constants

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.

`XML_ERROR_NONE` ( integer )
`XML_ERROR_NO_MEMORY` ( integer )
`XML_ERROR_SYNTAX` ( integer )
`XML_ERROR_NO_ELEMENTS` ( integer )
`XML_ERROR_INVALID_TOKEN` ( integer )
`XML_ERROR_UNCLOSED_TOKEN` ( integer )
`XML_ERROR_PARTIAL_CHAR` ( integer )
`XML_ERROR_TAG_MISMATCH` ( integer )
`XML_ERROR_DUPLICATE_ATTRIBUTE` ( integer )
`XML_ERROR_JUNK_AFTER_DOC_ELEMENT` ( integer )
`XML_ERROR_PARAM_ENTITY_REF` ( integer )
`XML_ERROR_UNDEFINED_ENTITY` ( integer )
`XML_ERROR_RECURSIVE_ENTITY_REF` ( integer )
`XML_ERROR_ASYNC_ENTITY` ( integer )
`XML_ERROR_BAD_CHAR_REF` ( integer )
`XML_ERROR_BINARY_ENTITY_REF` ( integer )
`XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF` ( integer )
`XML_ERROR_MISPLACED_XML_PI` ( integer )
`XML_ERROR_UNKNOWN_ENCODING` ( integer )
`XML_ERROR_INCORRECT_ENCODING` ( integer )
`XML_ERROR_UNCLOSED_CDATA_SECTION` ( integer )
`XML_ERROR_EXTERNAL_ENTITY_HANDLING` ( integer )
`XML_OPTION_CASE_FOLDING` ( integer )
`XML_OPTION_TARGET_ENCODING` ( integer )
`XML_OPTION_SKIP_TAGSTART` ( integer )
`XML_OPTION_SKIP_WHITE` ( integer )
`XML_SAX_IMPL` ( string )
  Holds the SAX implementation method. Can be libxml or expat.

Resource Types
Event Handlers
XML Parser
PHP Manual