(PHP 5, PHP 7, PHP 8)
ReflectionExtension::getConstants — Gets constants
Get defined constants from an extension.
This function has no parameters.
An associative array with constant names as keys.
Example #1 ReflectionExtension::getConstants() example
<?php
$ext = new ReflectionExtension('DOM');
print_r($ext->getConstants());
?>The above example will output something similar to:
Array ( [XML_ELEMENT_NODE] => 1 [XML_ATTRIBUTE_NODE] => 2 [XML_TEXT_NODE] => 3 [XML_CDATA_SECTION_NODE] => 4 [XML_ENTITY_REF_NODE] => 5 [XML_ENTITY_NODE] => 6 [XML_PI_NODE] => 7 [XML_COMMENT_NODE] => 8 [XML_DOCUMENT_NODE] => 9 [XML_DOCUMENT_TYPE_NODE] => 10 [XML_DOCUMENT_FRAG_NODE] => 11 [XML_NOTATION_NODE] => 12 [XML_HTML_DOCUMENT_NODE] => 13 [XML_DTD_NODE] => 14 [XML_ELEMENT_DECL_NODE] => 15 [XML_ATTRIBUTE_DECL_NODE] => 16 [XML_ENTITY_DECL_NODE] => 17 [XML_NAMESPACE_DECL_NODE] => 18 [XML_LOCAL_NAMESPACE] => 18 [XML_ATTRIBUTE_CDATA] => 1 [XML_ATTRIBUTE_ID] => 2 [XML_ATTRIBUTE_IDREF] => 3 [XML_ATTRIBUTE_IDREFS] => 4 [XML_ATTRIBUTE_ENTITY] => 6 [XML_ATTRIBUTE_NMTOKEN] => 7 [XML_ATTRIBUTE_NMTOKENS] => 8 [XML_ATTRIBUTE_ENUMERATION] => 9 [XML_ATTRIBUTE_NOTATION] => 10 [DOM_PHP_ERR] => 0 [DOM_INDEX_SIZE_ERR] => 1 [DOMSTRING_SIZE_ERR] => 2 [DOM_HIERARCHY_REQUEST_ERR] => 3 [DOM_WRONG_DOCUMENT_ERR] => 4 [DOM_INVALID_CHARACTER_ERR] => 5 [DOM_NO_DATA_ALLOWED_ERR] => 6 [DOM_NO_MODIFICATION_ALLOWED_ERR] => 7 [DOM_NOT_FOUND_ERR] => 8 [DOM_NOT_SUPPORTED_ERR] => 9 [DOM_INUSE_ATTRIBUTE_ERR] => 10 [DOM_INVALID_STATE_ERR] => 11 [DOM_SYNTAX_ERR] => 12 [DOM_INVALID_MODIFICATION_ERR] => 13 [DOM_NAMESPACE_ERR] => 14 [DOM_INVALID_ACCESS_ERR] => 15 [DOM_VALIDATION_ERR] => 16 )