ldap_errno

    (PHP 4, PHP 5, PHP 7, PHP 8)

    ldap_errno — Return the LDAP error number of the last LDAP command

    Description

    ldap_errno(LDAP\Connection $ldap): int

    Returns the standardized error number returned by the last LDAP command. This number can be converted into a textual error message using ldap_err2str().

    Parameters

    ldap

    An LDAP\Connection instance, returned by ldap_connect().

    Return Values

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

    Changelog

    Version Description
    8.1.0 The ldap parameter expects an LDAP\Connection instance now; previously, a valid ldap link resource was expected.

    Examples

    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.

    Example #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() - Convert LDAP error number into string error message
    • ldap_error() - Return the LDAP error message of the last LDAP command

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    User Contributed Notes 2 notes

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    0
    Anonymous
    22 years ago
    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
    up
    0
    ahall at mirapoint dot com
    23 years ago
    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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