MySQL一次更新多行

Question

I have a table which includes a row for each day of the week.

Each row contains 2 input fields.

I am wanting to click one save button which will update all rows from the table into seperate MySQL rows.

I have the below code to insert new rows (which works fine) but wondering how this can be changed to an UPDATE statement?

 $insertArr = array();
    for ($i=0; $i<$cnt; $i++) {
        $insertArr[] = "('" 
            . mysql_real_escape_string($_GET['Actual'][$i]) .
            "', '" 
            . mysql_real_escape_string($_GET['Period'][$i]) .
            "', '" 
            . mysql_real_escape_string($_GET['AddedBy'][$i]) .
                "', '" 
            . mysql_real_escape_string($_GET['Date'][$i]) .
                "', '" 
            . mysql_real_escape_string($_GET['Employee'][$i]) .
                "', '" 
            . mysql_real_escape_string($_GET['Rotered'][$i]) . "')";
}



 $query = "INSERT INTO hr_employee_rostered_hours (Actual, PeriodID, AddedBy, DateOfHours, EmployeeUniqueID, Rotered) VALUES " . implode(", ", $insertArr);
 mysql_query($query) or trigger_error("Insert failed: " . mysql_error());
}

Answer 1

The mysql extension has been deprecated in PHP, and I strongly advice against using it.

Assuming that you're still getting the values that you want to update using the array,

Here is a link about PDO (not official docummentation) that helped me out when I first started with PHP and PDO

Here's an example using PDO

$updateq = "UPDATE hr_employee_rostered_hours SET (Actual = :actualvalue, PeriodID = :periodid, AddedBy = :addedby,DateOfHours = :dateofhrs, Rotered = :rotered ) WHERE EmployeeUniqueID = :employeeid";
$updatex = $dbh->prepare($updateq);
$updatex->bindValue(":actualvalue",$insertArr[0]);
$updatex->bindValue(":periodid",$insertArr[1]);
$updatex->bindValue(":addedby",$insertArr[2]);
$updatex->bindValue(":dateofhrs",$insertArr[3]);
$updatex->bindValue(":periodid",$insertArr[5]);
$updatex->bindValue(":employeeid",$insertArr[4]);
$updatex->execute();