What are common pitfalls when using mysqli and bind_param in PHP?

One common pitfall when using mysqli and bind_param in PHP is not specifying the correct data types for the parameters in bind_param. This can lead to errors or unexpected behavior when executing the prepared statement. To solve this issue, make sure to specify the correct data types for each parameter in bind_param according to the data being passed. 

// Example of specifying data types in bind_param
$stmt = $mysqli->prepare("INSERT INTO users (name, age) VALUES (?, ?)");
$stmt->bind_param("si", $name, $age); // "si" specifies string and integer data types
$name = "John";
$age = 30;
$stmt->execute();

Keywords

mysqli bind_param SQL injection data validation prepared statements

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