PHP sqlsrv BULK INSERT incomplete - php

Question

I am trying to insert a big file (few millions row) via SQL server BULK INSERT functionality. My SQL query will look like:
BULK INSERT MY_TABLE
FROM '\\myserver\open\myfile.csv'
WITH (
firstrow=2,
FIELDTERMINATOR = ',',
ROWTERMINATOR = '\n',
BATCHSIZE = 50000,
ERRORFILE = '\\myserver\open\myfileerror.log'
);
When I trigger it from MSSQL Server Management Studio, it always import it completely.
When I do it from my PHP code, sometimes it stop in the middle, without any error messages.
I tried with both sqlsrv_query or sqlsrv_prepare/sqlsrv_execute, same result.
sql; //like the query above
$statement = sqlsrv_query($connection, $sql);
if($statement === false) {
$error = sqlsrv_errors();
$error['sql'] = $sql;
throw new Exception(json_encode($error));
}
Would it be possible to get the logs of MSSQL from the $statement, the same I get from the MSSQL Studio? e.g. (50000 row(s) affected).
As a workaround, I have increased the BATCHSIZE to 1000000, but that is not a real solution.
Background information:
- PHP 7.1.9
- sqlsrv version: 4.3.0+9904
- sqlsrv.ClientBufferMaxKBSize: 10240
- Windows 2012 R2 Server

Answer 1

The issue was about the statement buffer. When I read it with sqlsrv_next_result, processing continue.
$statement = sqlsrv_query($connection, $sql);
if($statement === false) {
$error = sqlsrv_errors();
$error['sql'] = $sql;
throw new Exception(json_encode($error));
} else if($statement) {
while($next_result = sqlsrv_next_result($statement)){
#echo date("Y-m-d H:i:s",time()). " Reading buffer...\n";
}
}