LOAD DATA INFILE PHP / MySQL

Question

Good afternoon

I'm trying to use PHP to transfer data from a CSV file into a MySQL Database. The code I have so far is:

$insert_query = "
    LOAD DATA LOCAL INFILE 'sample.csv'
    INTO table tblUncovered
    FIELDS TERMINATED BY ','
    LINES TERMINATED BY '
'
    (headcode, booked);
    "

if (!mysqli_query($insert_query, $conn)) {
    echo "Can't insert student record : " . mysql_error($conn);
    } 
    else {
    echo "You have successfully insert records into student table";
    }

Unfortunately, it doesn't seem to be working. If I comment out the last bit (If mysql_query onwards) the page will load, albeit do nothing. But when I include those lines, all I get is that 'This page isn't working'.

I've even tried using a file with just two rows and two fields and it won't have it.

Any ideas why?

Thanks Chris