Restore Firebird database with PHP -

i did backup

<?php  $host    = 'luis-pc/3051'; $file     = 'c:\sge\banco.fdb'; $username = 'sysdba'; $password = 'masterkey';  $resource_service_handle = ibase_service_attach ($host,$username,$password); ibase_backup($resource_service_handle,$file,'c:\sge\bd.fbk'); ibase_service_detach ($resource_service_handle); 

but restore didn't work

$resource_service_handle = ibase_service_attach ($host,$username,$password); ibase_restore($resource_service_handle, 'c:\sge\bd.fbk', 'c:\sge\abcde.fdb'); ibase_service_detach ($resource_service_handle); 

there no error message