ldap_error

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

ldap_error — Return the LDAP error message of the last LDAP command

说明

ldap_error ( LDAP\Connection $ldap ) : string

Returns the string error message explaining the error generated by the last LDAP command for the given ldap. While LDAP errno numbers are standardized, different libraries return different or even localized textual error messages. Never check for a specific error message text, but always use an error number to check.

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.

参数

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

返回值

Returns string error message.

更新日志

版本	说明
8.1.0	The `ldap` parameter expects an LDAP\Connection instance now; previously, a 资源(resource) was expected.

参见

ldap_err2str() - Convert LDAP error number into string error message
ldap_errno() - Return the LDAP error number of the last LDAP command

User Contributed Notes

Michael Newton 18-Nov-2017 12:23


Note that you can sometimes get more detailed error messages by getting the value of the LDAP_OPT_DIAGNOSTIC_MESSAGE option.



For example, after a recent connection error the two gave very different info:



<?php

$conn = ldap_connect($server);

ldap_search($conn, $dn, $query);



echo "ldap_error: " . ldap_error($conn);

ldap_get_option($conn, LDAP_OPT_DIAGNOSTIC_MESSAGE, $err);

echo "ldap_get_option: $err";

?>



This resulted in:



  ldap_error: Can't contact LDAP server

  ldap_get_option: TLS: hostname does not match CN in peer certificate

edA-qa at disemia dot com 28-Jul-2008 06:43


For those wondering, this function appears to do the same thing as:

<?php

ldap_err2str( ldap_errno() );

?>