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.

LDAP_DEREF_NEVER (integer)

Alias dereferencing rule - Never.

LDAP_DEREF_SEARCHING (integer)

Alias dereferencing rule - Searching.

LDAP_DEREF_FINDING (integer)

Alias dereferencing rule - Finding.

LDAP_DEREF_ALWAYS (integer)

Alias dereferencing rule - Always.

LDAP_OPT_DEREF (integer)

Specifies alternative rules for following aliases at the server.

LDAP_OPT_SIZELIMIT (integer)

Specifies the maximum number of entries that can be returned on a search operation.

Note: The actual size limit for operations is also bounded by the server's configured maximum number of return entries. The lesser of these two settings is the actual size limit.

LDAP_OPT_TIMELIMIT (integer)

Specifies the number of seconds to wait for search results.

Note: The actual time limit for operations is also bounded by the server's configured maximum time. The lesser of these two settings is the actual time limit.

LDAP_OPT_NETWORK_TIMEOUT (integer)

Option for ldap_set_option() to allow setting network timeout. (Available as of PHP 5.3.0)

LDAP_OPT_PROTOCOL_VERSION (integer)

Specifies the LDAP protocol to be used (V2 or V3).

LDAP_OPT_ERROR_NUMBER (integer)

Latest session error number.

LDAP_OPT_REFERRALS (integer)

Specifies whether to automatically follow referrals returned by the LDAP server.

LDAP_OPT_RESTART (integer)

Determines whether or not the connection should be implicitly restarted.

LDAP_OPT_HOST_NAME (integer)

Sets/gets a space-separated of hosts when trying to connect.

LDAP_OPT_ERROR_STRING (integer)

Alias of LDAP_OPT_DIAGNOSTIC_MESSAGE.

LDAP_OPT_DIAGNOSTIC_MESSAGE (integer)

Gets the latest session error message.

LDAP_OPT_MATCHED_DN (integer)

Sets/gets the matched DN associated with the connection.

LDAP_OPT_SERVER_CONTROLS (integer)

Specifies a default list of server controls to be sent with each request.

LDAP_OPT_CLIENT_CONTROLS (integer)

Specifies a default list of client controls to be processed with each request.

LDAP_OPT_DEBUG_LEVEL (integer)

Specifies a bitwise level for debug traces.

LDAP_OPT_X_KEEPALIVE_IDLE (integer)

Specifies the number of seconds a connection needs to remain idle before TCP starts sending keepalive probes.

LDAP_OPT_X_KEEPALIVE_PROBES (integer)

Specifies the maximum number of keepalive probes TCP should send before dropping the connection.

LDAP_OPT_X_KEEPALIVE_INTERVAL (integer)

Specifies the interval in seconds between individual keepalive probes.

LDAP_OPT_X_TLS_CACERTDIR (string)

Specifies the path of the directory containing CA certificates.

LDAP_OPT_X_TLS_CACERTFILE (string)

Specifies the full-path of the CA certificate file.

LDAP_OPT_X_TLS_CERTFILE (string)

Specifies the full-path of the certificate file.

LDAP_OPT_X_TLS_CIPHER_SUITE (string)

Specifies the allowed cipher suite.

LDAP_OPT_X_TLS_CRLCHECK (integer)

Specifies the CRL evaluation strategy. This must be one of: LDAP_OPT_X_TLS_CRL_NONE,LDAP_OPT_X_TLS_CRL_PEER, LDAP_OPT_X_TLS_CRL_ALL.

Note: This option is only valid for OpenSSL.

LDAP_OPT_X_TLS_CRLFILE (string)

Specifies the full-path of the CRL file.

Note: This option is only valid for GnuTLS.

LDAP_OPT_X_TLS_DHFILE (string)

Specifies the full-path of the file containing the parameters for Diffie-Hellman ephemeral key exchange.

Note: This option is ignored by GnuTLS and Mozilla NSS.

LDAP_OPT_X_TLS_KEYFILE (string)

Specifies the full-path of the certificate key file.

LDAP_OPT_X_TLS_PROTOCOL_MIN (integer)

Specifies the minimum protocol version. This can be one of: LDAP_OPT_X_TLS_PROTOCOL_SSL2,LDAP_OPT_X_TLS_PROTOCOL_SSL3, LDAP_OPT_X_TLS_PROTOCOL_TLS1_0, LDAP_OPT_X_TLS_PROTOCOL_TLS1_1, LDAP_OPT_X_TLS_PROTOCOL_TLS1_2

LDAP_OPT_X_TLS_RANDOM_FILE (string)

Sets/gets the random file when one of the system default ones are not available.

LDAP_OPT_X_TLS_REQUIRE_CERT (integer)

Specifies the certificate checking checking strategy. This must be one of: LDAP_OPT_X_TLS_NEVER,LDAP_OPT_X_TLS_HARD, LDAP_OPT_X_TLS_DEMAND, LDAP_OPT_X_TLS_ALLOW, LDAP_OPT_X_TLS_TRY. (Available as of PHP 7.0.0)

GSLC_SSL_NO_AUTH (integer)

SSL Authentication Mode - No authentication required. (Only for Oracle LDAP)

GSLC_SSL_ONEWAY_AUTH (integer)

SSL Authentication Mode - Only server authentication required. (Only for Oracle LDAP)

GSLC_SSL_TWOWAY_AUTH (integer)

SSL Authentication Mode - Both server and client authentication required. (Only for Oracle LDAP)

LDAP_EXOP_START_TLS (string)

Extended Operation constant - Start TLS (RFC 4511).

LDAP_EXOP_MODIFY_PASSWD (string)

Extended Operation constant - Modify password (RFC 3062).

LDAP_EXOP_REFRESH (string)

Extended Operation Constant - Refresh (RFC 2589).

LDAP_EXOP_WHO_AM_I (string)

Extended Operation Constant - WHOAMI (RFC 4532).

LDAP_EXOP_TURN (string)

Extended Operation Constant - Turn (RFC 4531).