json相关。

header('Content-type:text/html;charset=utf-8');
    
    function c($tag)
    {
        echo "<title>$tag</title>";
    }
    c($tag = "json与serialize对比");
    
    #创建数组
    $member = array(
        "username",
        "age"
    );
    #var_dump($member);
    
    #转换为json格式
    echo "当数组被转换为json格式时：";
    echo "<br />";
    $jsonDemo = json_encode($member);
    var_dump($jsonDemo);
    
    echo "<hr />";
    
    #转换为serialize
    echo "当数组被转换为serialize格式时：";
    echo "<br />";
    $serializeDemo = serialize($member);
    var_dump($serializeDemo);
    
    echo "<hr />";
    
    echo "json还原初始数据格式：";
    echo "<br />";
    #json格式还原为初始数据格式
    $jsonReduction = json_decode($jsonDemo);
    var_dump($jsonReduction);
    
    echo "<hr />";
    
    #索引数组与关联数组
    echo "索引数组（无值）：";
    echo "<br />";
    $array1 = array (
        "username",
        "age"
    );
    var_dump($array1);
    
    echo "<hr />";
    echo "关联数组（有值）";
    echo "<br />";
    $array2 = array(
        "username" => "王家逸",
        "age" => "30",
    );
    var_dump($array2);