MSSQL PHP cannot delete rows - php

Question

First of all sorry for my English.
Im trying to delete / insert some rows to a MSSQL Table but i get no error but it just doesnt work. But when I do a SELECT statement it works as well.
$dbhandle = mssql_connect("SERVERNAME", "username", "password") or die("Couldn't connect to SQL Server on $myServer");
$selected = mssql_select_db("myDB", $dbhandle) or die("Couldn't open database $myDB");
mssql_query("DELETE dbo.import");
The server SQL INSTANCE is installed on my local computer and I'm the Administrator of this SQL Server but the Webserver is on another PC.
I created the user and I assigned the role db_owner
When I try the same query on another SQL Server, it works.
I also tryed:
$dbhandle = mssql_connect("SERVERNAME", "username", "password") or die("Couldn't connect to SQL Server on $myServer");
$selected = mssql_select_db("myDB", $dbhandle) or die("Couldn't open database $myDB");
$result = mssql_query("DELETE dbo.import; SELECT * FROM dbo.import;");
$sqlRows = array();
while($row = mssql_fetch_array($result))
{
$sqlRows[] = $row;
}
echo sizeof($sqlRows);
and the echo return 0, but when I check from SSMS the records are still there.
DELETE SCHEMA.TABLE; SELECT * FROM SCHEMA.TABLE;
returns 0 rows. And then I try again
SELECT * FROM dbo.import;
returns 26 rows.

Answer 1

Ok I just found the answer searching on the Web.
There was a rollback as mentioned from Shnugo and adding SET IMPLICIT_TRANSACTIONS OFF; at the beginning of the query it solve the problem.
Thank you

Answer 2

EDIT 2
The solution was a not committed transaction. See comments...
EDIT
My answer is not right to the point... I must admit, that I never used DELETE without FROM, but this works obviously:
create table #tbl(id int);
insert into #tbl values(1),(2);
select * from #tbl;
delete #tbl;
select * from #tbl;
drop table #tbl;
I let the answer there due to the comments...