What is the difference between using implode in a SQL query directly and using it as a parameter in a prepared statement in PHP?

When using implode in a SQL query directly, it can make your code vulnerable to SQL injection attacks if the array values are not properly sanitized. To prevent this, it's recommended to use implode as a parameter in a prepared statement in PHP. This way, the values are automatically escaped and sanitized, making your code more secure. 

// Using implode in a prepared statement to prevent SQL injection

// Assuming $array contains the values to be inserted
$values = implode(',', array_fill(0, count($array), '?'));

// Prepare the SQL statement with placeholders
$stmt = $pdo->prepare("INSERT INTO table_name (column_name) VALUES $values");

// Bind the array values to the placeholders
$stmt->execute($array);

Keywords

implode SQL query prepared statement PHP difference

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