ALTER PROCEDURE testsp 
	@Param1 int = 0 output
AS
BEGIN
	select 1/0 -- 8134
	-- raiserror('test error',16,1); -- Msg 50000
	-- insert into emp(empno) values(1) -- Msg 2627
	-- insert into dept(deptno) values(NULL) -- Msg 515
	-- select loc,( select empno from emp where dept=d.deptno) from dept d -- Msg 512
	set @Param1 = @@ERROR
	return 1;
END
GO

[oracle@www ~]$ tsql -S SandBox_2008 -U scott -P tiger
locale is "ru_RU.cp1251"
locale charset is "CP1251"
using default charset "CP1251"
1> declare @ret int, @i int
2> select @i = 25
3> exec @ret = testsp @Param1 = @i output
4> print @ret
5> print @i
6> go

Msg 8134 (severity 16, state 1) from SOFITERM, Procedure testsp Line 5:
        "Divide by zero error encountered."
(return status = 1)
1
8134
1> exit

[oracle@www ~]$ cat tst_p2.php
<?php
$myServer = "SandBox_2008";
$myUser = "scott";
$myPass = "tiger";
$myDB = "TestDatabase";

//connection to the database
$dbhandle = mssql_connect($myServer, $myUser, $myPass)
  or die('mssql_connect error: '.mssql_get_last_message());

//select a database to work with
$selected = mssql_select_db($myDB, $dbhandle)
  or die('mssql_init error: ' . mssql_get_last_message());

$err_flag=0;

/*
$query = "exec('declare @ret int, @i int
select @i = 25
exec @ret = testsp @Param1 = @i output
select @ret, @i')";
$result = mssql_query($query);
*/

$stmt = mssql_init('testsp', $dbhandle);
mssql_bind($stmt,"RETVAL",$ret,SQLINT4);
mssql_bind($stmt,"@Param1",$erc,SQLINT4,true);
$result = mssql_execute($stmt);

$lastMsg = mssql_get_last_message();
if (!$result || (!empty($lastMsg) && substr($lastMsg,0,7)!="Changed")) {
    echo 'lastMsg=['.$lastMsg . "]\n";
    $err_flag=1;
}

do {
    print "next result set:\n";
    if ( $err_flag==0 )
        while ($row = mssql_fetch_row($result)) {
            for($i=0;$i < mssql_num_fields($result);$i++)
                echo "$row[$i] ";
            echo "\n";
        }
// Move the internal result pointer to the next result
    $rc = mssql_next_result($result);
    $lastMsg = mssql_get_last_message();
    if (!empty($lastMsg)){
        echo 'lastMsg=['.$lastMsg . "]\n";
        $err_flag=1;
    }
} while ($rc == true);

mssql_free_result($result);
mssql_free_statement($stmt);
mssql_close($dbhandle);

echo "\nVariables : err_flag=[$err_flag], procedure return=[$ret], @@ERROR=[$erc]\n";
?>

[oracle@www ~]$ php tst_p2.php
lastMsg=[Division by zero occurred.]
next result set:
lastMsg=[Division by zero occurred.]

Variables : err_flag=[1], procedure return=[1], @@ERROR=[0]