PHP prepared statements and transactions in a loop [duplicate]

Your loop can be optimized by pulling the prepare and bind_param statements out of the loop.

$value = null;
$sql  = "INSERT INTO temp (`fund_id`) VALUES (?)";
$stmt = $mysqli->prepare($sql);
$stmt->bind_param('i', $value);
foreach ($pdata as $value) {

You have turned off autocommit with your autocommit(FALSE) line and therefore don’t need to use the START TRANSACTION statement.

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