ldap_error

(PHP 4, PHP 5, PHP 7)

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

说明

ldap_error ( resource $link_identifier ) : string

Returns the string error message explaining the error generated by the last LDAP command for the given link_identifier. 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

link_identifier: An LDAP link identifier, returned by ldap_connect().

返回值

Returns string error message.

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() );

?>