Estas constantes están definidas por esta extensión y estarán disponibles sólo cuando la extensión haya sido compilada con PHP, o bien sea cargada dinámicamente en ejecución.
SOAP_1_1
SOAP_1_2
SOAP_PERSISTENCE_SESSION
SOAP_PERSISTENCE_REQUEST
SOAP_FUNCTIONS_ALL
SOAP_ENCODED
SOAP_LITERAL
SOAP_RPC
SOAP_DOCUMENT
SOAP_ACTOR_NEXT
SOAP_ACTOR_NONE
SOAP_ACTOR_UNLIMATERECEIVER
SOAP_COMPRESSION_ACCEPT
SOAP_COMPRESSION_GZIP
SOAP_COMPRESSION_DEFLATE
SOAP_AUTHENTICATION_BASIC
SOAP_AUTHENTICATION_DIGEST
SOAP_SSL_METHOD_TLS
SOAP_SSL_METHOD_SSLv2
SOAP_SSL_METHOD_SSLv3
SOAP_SSL_METHOD_SSLv23
UNKNOWN_TYPE
XSD_STRING
XSD_BOOLEAN
XSD_DECIMAL
XSD_FLOAT
XSD_DOUBLE
XSD_DURATION
XSD_DATETIME
XSD_TIME
XSD_DATE
XSD_GYEARMONTH
XSD_GYEAR
XSD_GMONTHDAY
XSD_GDAY
XSD_GMONTH
XSD_HEXBINARY
XSD_BASE64BINARY
XSD_ANYURI
XSD_QNAME
XSD_NOTATION
XSD_NORMALIZEDSTRING
XSD_TOKEN
XSD_LANGUAGE
XSD_NMTOKEN
XSD_NAME
XSD_NCNAME
XSD_ID
XSD_IDREF
XSD_IDREFS
XSD_ENTITY
XSD_ENTITIES
XSD_INTEGER
XSD_NONPOSITIVEINTEGER
XSD_NEGATIVEINTEGER
XSD_LONG
XSD_INT
XSD_SHORT
XSD_BYTE
XSD_NONNEGATIVEINTEGER
XSD_UNSIGNEDLONG
XSD_UNSIGNEDINT
XSD_UNSIGNEDSHORT
XSD_UNSIGNEDBYTE
XSD_POSITIVEINTEGER
XSD_NMTOKENS
XSD_ANYTYPE
XSD_ANYXML
APACHE_MAP
SOAP_ENC_OBJECT
SOAP_ENC_ARRAY
XSD_1999_TIMEINSTANT
XSD_NAMESPACE
XSD_1999_NAMESPACE
SOAP_SINGLE_ELEMENT_ARRAYS
SOAP_WAIT_ONE_WAY_CALLS
SOAP_USE_XSI_ARRAY_TYPE
WSDL_CACHE_NONE
WSDL_CACHE_DISK
WSDL_CACHE_MEMORY
WSDL_CACHE_BOTH