How to use prepared statements with IN clauses for dynamic queries in PDO in PHP?

To use prepared statements with IN clauses for dynamic queries in PDO in PHP, you can follow these steps:

Step 1: Create an array of values for the IN clause.

$values = [1, 2, 3, 4];

Step 2: Generate placeholders for the array values.

$placeholders = implode(',', array_fill(0, count($values), '?'));

Step 3: Prepare the SQL statement with the placeholder for the IN clause.

$sql = "SELECT * FROM table_name WHERE column_name IN ($placeholders)"; $stmt = $pdo->prepare($sql);

Step 4: Bind the array values to the prepared statement.

foreach ($values as $key => $value) { $stmt->bindValue(($key + 1), $value); }

Step 5: Execute the prepared statement.

$stmt->execute();

Here's the complete code:

$values = [1, 2, 3, 4]; $placeholders = implode(',', array_fill(0, count($values), '?')); $sql = "SELECT * FROM table_name WHERE column_name IN ($placeholders)"; $stmt = $pdo->prepare($sql); foreach ($values as $key => $value) { $stmt->bindValue(($key + 1), $value); } $stmt->execute();

This approach allows you to dynamically build an SQL query with an IN clause and bind the corresponding values using a prepared statement in PDO.