What are the advantages of using CSS Grid or Flexbox for layout in PHP?

When building a website layout in PHP, using CSS Grid or Flexbox can provide a more efficient and flexible way to create responsive designs. These CSS layout techniques allow for easier alignment and positioning of elements, as well as the ability to create complex layouts with less code. By utilizing CSS Grid or Flexbox, developers can achieve consistent and visually appealing layouts across different screen sizes and devices.

<!DOCTYPE html>
<html>
<head>
    <style>
        .container {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            grid-gap: 10px;
        }
        .item {
            background-color: #f2f2f2;
            padding: 20px;
            text-align: center;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="item">Item 1</div>
        <div class="item">Item 2</div>
        <div class="item">Item 3</div>
        <div class="item">Item 4</div>
        <div class="item">Item 5</div>
        <div class="item">Item 6</div>
    </div>
</body>
</html>