LDAP issue

I have enabled the ldap in http.conf and php.ini, and saw it enabled in phpinfo(), but after installed LdapConnection, i can’t open admin/Settings page, system display a error: 0x7002: LDAP extension not loaded.
how can i slove this problem? thanks!

Please go to de php.ini file and check if extension=php_ldap.dll is enabled

for support about custom plugins such as LdapVisitorInfo please post in the Github issue tracker for this plugin directly, as the developers of these plugins will not read the forums