How can PHP handle data input from a textarea and process it efficiently for database updates?

When handling data input from a textarea in PHP, it's important to properly sanitize the input to prevent SQL injection attacks. One way to do this is by using the `mysqli_real_escape_string()` function to escape special characters. Additionally, you can use prepared statements to securely insert the data into the database. 

// Assuming $conn is your database connection

// Sanitize the input from the textarea
$text = mysqli_real_escape_string($conn, $_POST['textarea_input']);

// Prepare a SQL statement using a prepared statement
$stmt = $conn->prepare("INSERT INTO your_table_name (text_column) VALUES (?)");
$stmt->bind_param("s", $text);

// Execute the statement
$stmt->execute();

// Close the statement and connection
$stmt->close();
$conn->close();

Keywords

PHP data input textarea database updates efficiency

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