What are the potential pitfalls of using the implode function in PHP for database queries?

Using the implode function in PHP for database queries can potentially lead to SQL injection vulnerabilities if the input data is not properly sanitized. To prevent this, it is crucial to use prepared statements with parameterized queries to securely handle user input. 

// Example of using prepared statements with parameterized queries to prevent SQL injection
$ids = [1, 2, 3];
$placeholders = implode(',', array_fill(0, count($ids), '?'));

$sql = "SELECT * FROM table WHERE id IN ($placeholders)";
$stmt = $pdo->prepare($sql);
$stmt->execute($ids);

Keywords

implode PHP database queries SQL injection security

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