(PHP 4, PHP 5, PHP 7, PHP 8)
ldap_first_attribute — Return first attribute
Gets the first attribute in the given entry. Remaining attributes are retrieved by calling ldap_next_attribute() successively.
Similar to reading entries, attributes are also read one by one from a particular entry.
ldapAn LDAP\Connection instance, returned by ldap_connect().
entryAn LDAP\ResultEntry instance.
ber_identifier
       ber_identifier is the identifier to internal
       memory location pointer. It is passed by reference. The same
       ber_identifier is passed to
       ldap_next_attribute() , which modifies that
       pointer.
      
注意:
This parameter is no longer used as this is now handled automatically by PHP. For backwards compatibility PHP will not throw an error if this parameter is passed.
   Returns the first attribute in the entry on success and false on
   error.
  
| 版本 | 说明 | 
|---|---|
| 8.1.0 | The ldapparameter expects an LDAP\Connection
  instance now; previously, a 资源(resource) was expected. | 
| 8.1.0 | The entryparameter expects an LDAP\ResultEntry
  instance now; previously, a 资源(resource) was expected. |