LDAP support in PHP is not enabled by default. You will need to use the --with-ldap[=DIR] configuration option when compiling PHP to enable LDAP support. DIR is the LDAP base install directory. To enable SASL support, be sure --with-ldap-sasl[=DIR] is used, and that sasl.h exists on the system.
注意: Note to Win32 Users
為了使此擴(kuò)展生效， DLL 文件必須能在 Windows 系統(tǒng)的 PATH 指示的路徑下找到。如何操作的信息，請(qǐng)參見題為“如何在 Windows 中將 PHP 目錄加到 PATH 中”的FAQ。雖然將 DLL 文件從 PHP 文件夾復(fù)制到 Windows 系統(tǒng)目錄也行，但不建議這樣做。 此擴(kuò)展需要下列文件在 PATH 路徑中： libeay32.dll and ssleay32.dll, or, as of OpenSSL 1.1 libcrypto-*.dll and libssl-*.dll
In order to use Oracle LDAP libraries, proper Oracle environment has to be set.