MySQL是一个开源的关系型数据库管理系统，被广泛应用于Web应用程序的开发中。虽然在初学时可能会感到有些难度，但是实际上MySQL的操作非常简单。
//连接到MySQL数据库$conn = mysqli_connect("localhost", "username", "password", "dbname");//查询数据$result = mysqli_query($conn, "SELECT * FROM users");//遍历数据，输出结果while($row = mysqli_fetch_assoc($result)) {echo "Name: " . $row["name"] . " - Age: " . $row["age"] . "
";}//插入数据$sql = "INSERT INTO users (name, age, email) VALUES ('John Doe', 30, 'johndoe@example.com')";if(mysqli_query($conn, $sql)) {echo "New record created successfully";} else {echo "Error: " . $sql . "
" . mysqli_error($conn);}//更新数据$sql = "UPDATE users SET age=32 WHERE name='John Doe'";if(mysqli_query($conn, $sql)) {echo "Record updated successfully";} else {echo "Error updating record: " . mysqli_error($conn);}//删除数据$sql = "DELETE FROM users WHERE name='John Doe'";if(mysqli_query($conn, $sql)) {echo "Record deleted successfully";} else {echo "Error deleting record: " . mysqli_error($conn);}//关闭数据库连接mysqli_close($conn);
通过以上代码范例，我们可以看到MySQL操作的语法非常直观且易于理解。只需掌握一些基本的SQL语句，就能轻松应对日常的数据库管理任务。
