【PHP】How to use transaction 4

transaction.php

<?php
try {
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  
    $pdo->beginTransaction();
  
    // 処理を行う
  
    $pdo->commit();
    
} catch (Exception $e) {
    $pdo->rollBack();
}
?>