ldap_errno

Description

int ldap_errno ( resource link_identifier )

Return the LDAP error number of the last LDAP command for this link.

This function returns the standardized error number returned by the last LDAP command for the given link_identifier. This number can be converted into a textual error message using ldap_err2str().

Unless you lower your warning level in your php.ini sufficiently or prefix your LDAP commands with @ (at) characters to suppress warning output, the errors generated will also show up in your HTML output.
例子 1. Generating and catching an error
<?php // This example contains an error, which we will catch. $ld = ldap_connect("localhost"); $bind = ldap_bind($ld); // syntax error in filter expression (errno 87), // must be "objectclass=*" to work. $res = @ldap_search($ld, "o=Myorg, c=DE", "objectclass"); if (!$res) { echo "LDAP-Errno: " . ldap_errno($ld) . "<br />\n"; echo "LDAP-Error: " . ldap_error($ld) . "<br />\n"; die("Argh!<br />\n"); } $info = ldap_get_entries($ld, $res); echo $info["count"] . " matching entries.<br />\n"; ?>

See also ldap_err2str() and ldap_error().

add a note User Contributed Notes

12-Apr-2002 07:23


Common LDAP error codes





LDAP_SUCCESS                    0x00


LDAP_OPERATIONS_ERROR           0x01


LDAP_PROTOCOL_ERROR             0x02


LDAP_TIMELIMIT_EXCEEDED         0x03


LDAP_SIZELIMIT_EXCEEDED         0x04


LDAP_COMPARE_FALSE              0x05


LDAP_COMPARE_TRUE               0x06


LDAP_AUTH_METHOD_NOT_SUPPORTED  0x07


LDAP_STRONG_AUTH_REQUIRED       0x08


// Not used in LDAPv3


LDAP_PARTIAL_RESULTS            0x09





// Next 5 new in LDAPv3


LDAP_REFERRAL           0x0a


LDAP_ADMINLIMIT_EXCEEDED        0x0b


LDAP_UNAVAILABLE_CRITICAL_EXTENSION     0x0c


LDAP_CONFIDENTIALITY_REQUIRED   0x0d


LDAP_SASL_BIND_INPROGRESS       0x0e





LDAP_NO_SUCH_ATTRIBUTE          0x10


LDAP_UNDEFINED_TYPE             0x11


LDAP_INAPPROPRIATE_MATCHING     0x12


LDAP_CONSTRAINT_VIOLATION       0x13


LDAP_TYPE_OR_VALUE_EXISTS       0x14


LDAP_INVALID_SYNTAX             0x15





LDAP_NO_SUCH_OBJECT             0x20   /* 32 */


LDAP_ALIAS_PROBLEM              0x21


LDAP_INVALID_DN_SYNTAX          0x22


// Next two not used in LDAPv3


LDAP_IS_LEAF                    0x23


LDAP_ALIAS_DEREF_PROBLEM        0x24





LDAP_INAPPROPRIATE_AUTH         0x30   /* 48 */


LDAP_INVALID_CREDENTIALS        0x31   /* 49 */


LDAP_INSUFFICIENT_ACCESS        0x32


LDAP_BUSY                       0x33


LDAP_UNAVAILABLE                0x34


LDAP_UNWILLING_TO_PERFORM       0x35


LDAP_LOOP_DETECT                0x36





LDAP_SORT_CONTROL_MISSING       0x3C    /* 60 */


LDAP_INDEX_RANGE_ERROR          0x3D    /* 61 */





LDAP_NAMING_VIOLATION           0x40


LDAP_OBJECT_CLASS_VIOLATION     0x41


LDAP_NOT_ALLOWED_ON_NONLEAF     0x42


LDAP_NOT_ALLOWED_ON_RDN         0x43


LDAP_ALREADY_EXISTS             0x44    /* 68 */


LDAP_NO_OBJECT_CLASS_MODS       0x45


LDAP_RESULTS_TOO_LARGE          0x46


// Next two for LDAPv3


LDAP_AFFECTS_MULTIPLE_DSAS      0x47


LDAP_OTHER                      0x50





// Used by some APIs


LDAP_SERVER_DOWN                0x51


LDAP_LOCAL_ERROR                0x52


LDAP_ENCODING_ERROR             0x53


LDAP_DECODING_ERROR             0x54


LDAP_TIMEOUT                    0x55


LDAP_AUTH_UNKNOWN               0x56


LDAP_FILTER_ERROR               0x57    /* 87 */


LDAP_USER_CANCELLED             0x58


LDAP_PARAM_ERROR                0x59


LDAP_NO_MEMORY                  0x5a





// Preliminary LDAPv3 codes


LDAP_CONNECT_ERROR              0x5b


LDAP_NOT_SUPPORTED              0x5c


LDAP_CONTROL_NOT_FOUND  0x5d


LDAP_NO_RESULTS_RETURNED        0x5e


LDAP_MORE_RESULTS_TO_RETURN     0x5f


LDAP_CLIENT_LOOP        0x60


LDAP_REFERRAL_LIMIT_EXCEEDED    0x61

ahall at mirapoint dot com
31-Jul-2001 10:16


Couple of good error codes to get started.  If you want to detect failure of ldap_add due to the record already existing, ldap_error == 0x44.  This means, you can do something like:





$r = ldap_add($ds, $dn, $info);


if (!$r) {


    if (ldap_errno($ds) == 0x44) {


         // Do something about it


    } else {


         // A real failure


    }


}





Similarly, on ldap_delete, you will get a 0x20 value (No Such Object) if you try to delete something that isn't there.

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