Writing a PHP file to read from CSV and execute SQL Query

Question

I would like a PHP script to read the contents from a CSV file in the following format

id, sku
1,104101
2,105213

there are a total of 1486

Answer 1

Well done on learning :)

You should perhaps now learn about PDO in PHP, as it's (in my opinion) the best, safest and fastest way to execute MySQL queries in PHP:

' . PHP_EOL;
    $stmt = $db->prepare('UPDATE catalog_product_entity SET sku = :sku WHERE entity_id = :id');
    //Only give the length parameter if you **KNOW** that no line will be longer than that
    while (($data=fgetcsv($fin,1000,","))!==FALSE) {
        if ($stmt->execute(array(':sku' => $data[1], ':id' => $data[0]))) {
            echo 'Record updated 
' . PHP_EOL;
        } else {
            $err = $stmt->errorInfo();
            echo 'Update Failed: ' . $err[2] . PHP_EOL;
        }
    }
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}
fclose($fin);

The PDO script has the following advantages over yours:

• It's safer: PDO automatically quotes the data being inserted as needed. This prevents SQL injection attacks.
• It's faster: PDO caches the query (in the prepare), and then uses the parameters passed in execute.
• It's portable: PDO can connect to various types DB's, not just MySQL, so if you need to switchs DB's, its much easier.