ldap_set_option

(PHP 4 >= 4.0.4, PHP 5)

ldap_set_option — Set the value of the given option

说明

bool ldap_set_option ( resource $link_identifier , int $option , mixed $newval )

Sets the value of the specified option to be newval.

参数

link_identifier

An LDAP link identifier, returned by ldap_connect().

option

The parameter option can be one of:

Option	Type	Available since
`LDAP_OPT_DEREF`	integer
`LDAP_OPT_SIZELIMIT`	integer
`LDAP_OPT_TIMELIMIT`	integer
`LDAP_OPT_NETWORK_TIMEOUT`	integer	PHP 5.3.0
`LDAP_OPT_PROTOCOL_VERSION`	integer
`LDAP_OPT_ERROR_NUMBER`	integer
`LDAP_OPT_REFERRALS`	bool
`LDAP_OPT_RESTART`	bool
`LDAP_OPT_HOST_NAME`	string
`LDAP_OPT_ERROR_STRING`	string
`LDAP_OPT_MATCHED_DN`	string
`LDAP_OPT_SERVER_CONTROLS`	array
`LDAP_OPT_CLIENT_CONTROLS`	array

LDAP_OPT_SERVER_CONTROLS and LDAP_OPT_CLIENT_CONTROLS require a list of controls, this means that the value must be an array of controls. A control consists of an oid identifying the control, an optional value, and an optional flag for criticality. In PHP a control is given by an array containing an element with the key oid and string value, and two optional elements. The optional elements are key value with string value and key iscritical with boolean value. iscritical defaults to FALSE if not supplied. See » draft-ietf-ldapext-ldap-c-api-xx.txt for details. See also the second example below.

newval

The new value for the specified option.

返回值

成功时返回 TRUE，或者在失败时返回 FALSE.

范例

Example #1 Set protocol version


<?php
// $ds is a valid link identifier for a directory server
if (ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3)) {
    echo "Using LDAPv3";
} else {
    echo "Failed to set protocol version to 3";
}
?>

Example #2 Set server controls


<?php
// $ds is a valid link identifier for a directory server
// control with no value
$ctrl1 = array("oid" => "1.2.752.58.10.1", "iscritical" => true);
// iscritical defaults to FALSE
$ctrl2 = array("oid" => "1.2.752.58.1.10", "value" => "magic");
// try to set both controls
if (!ldap_set_option($ds, LDAP_OPT_SERVER_CONTROLS, array($ctrl1, $ctrl2))) {
    echo "Failed to set server controls";
}
?>

注释

Note:
This function is only available when using OpenLDAP 2.x.x OR Netscape Directory SDK x.x.

参见

ldap_get_option() - Get the current value for given option

PHP手册 - N: Set the value of the given option

用户评论:

Anonymous (19-Nov-2010 09:56)

LDAP options description http://publib.boulder.ibm.com/infocenter/iseries/v5r3/index.jsp?topic=%2Fapis%2Fldap_set_option.htm

technosophos (07-Mar-2007 10:00)

The following flags are valid integer values for the LDAP_OPT_DEREF (as taken from the documentation for ldap_read()): LDAP_DEREF_NEVER (int 0) - (default) aliases are never dereferenced. LDAP_DEREF_SEARCHING (int 1) - aliases should be dereferenced during the search but not when locating the base object of the search. LDAP_DEREF_FINDING (int 2) - aliases should be dereferenced when locating the base object but not during the search. LDAP_DEREF_ALWAYS (int 3) - aliases should be dereferenced always. Example: <?php ldap_set_option($ds, LDAP_OPT_DEREF, LDAP_DEREF_ALWAYS); ?> These are defined in the draft C API (presumably from the original LDAP API). See draft-ietf-ldapext-ldap-c-api-xx.txt included in the OpenLDAP source code distribution.

hansfn at gmail dot com (23-May-2006 12:23)

Luckily you can turn on debugging before you open a connection: ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, 7); This way you at least can see in the logs if the connection fails...

minusf at gmail dot com (31-Oct-2005 09:59)

it seems that ldap_set_option returns 1 for bogus ldap_connect -ions also. ldap_connect always returns a resource (documented in the comments of ldap_connect) so it is not possible to check if the ldap server is there or alive or what. and because ldap_set_option must be between ldap_connect and ldap_bind, there seems to be no sense in checking the return value. it is a bit strange that ldap_bind is the first function which can really check if a ldap resource is usable because it is the third function in line to use when working with openldap. <?php $connect = ldap_connect("whatever"); $set = ldap_set_option($connect, LDAP_OPT_PROTOCOL_VERSION, 3); echo $set; ?>

soulbros at yahoo dot com (26-Feb-2002 11:56)

As john.hallam@compaq.com above mentioned ,one has to set option LDAP_OPT_PROTOCOL_VERSION=3 ldap_set_option($ds,LDAP_OPT_PROTOCOL_VERSION,3); to use the ldap_rename function. However, the ldap_set_option() line has to be written immediately after ldap_connect() and before ldap_bind() statements. Christos Soulios

john dot hallam at compaq dot com (28-Jan-2002 06:00)

To get this to work I had to set the LDAP version to 3 using ldap_set_option. Here is an example that might help: $TheDN = "cn=john smith,ou=users,dc=acme,dc=com"; $newRDN = "cn=bill brown"; $newParent = "ou=users,dc=acme,dc=com"; ldap_set_option($ds,LDAP_OPT_PROTOCOL_VERSION,3); @$result = ldap_rename($ds, $TheDN, $newRDN, $newParent, TRUE);