How can undefined variable errors be avoided when using mysqli_stmt_bind_result in PHP?

When using mysqli_stmt_bind_result in PHP, undefined variable errors can be avoided by initializing variables before binding them to the result set. This ensures that the variables exist and are not undefined when the result set is fetched. 

// Initialize variables before binding
$name = "";
$age = 0;

// Bind variables to the result set
$stmt->bind_result($name, $age);

// Fetch the result set
$stmt->fetch();

// Now $name and $age will have values from the database without causing undefined variable errors

Keywords

PHP mysqli_stmt_bind_result undefined variable errors error handling data binding

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