Question

我需要一个php函数来生成唯一标识用户的访问令牌。我将此令牌存储在名为“token”的额外列中，我将使用它来进行移动应用程序的身份验证。我在网上搜索它，所有结果都指的是推特或脸书。我需要在我的应用程序中使用它。

我使用cakePHP后端和Android平台。

非常感谢。

Answer 1

使用guid： -

function getGUID(){
    if (function_exists('com_create_guid')){
        return com_create_guid();
    }else{
        mt_srand((double)microtime()*10000);//optional for php 4.2.0 and up.
        $charid = strtoupper(md5(uniqid(rand(), true)));
        $hyphen = chr(45);// "-"
        $uuid = chr(123)// "{"
            .substr($charid, 0, 8).$hyphen
            .substr($charid, 8, 4).$hyphen
            .substr($charid,12, 4).$hyphen
            .substr($charid,16, 4).$hyphen
            .substr($charid,20,12)
            .chr(125);// "}"
        return $uuid;
    }
}

$GUID = getGUID();
echo $GUID;

或参考此链接http://guid.us/GUID/PHP

Answer 2

你也可以使用php来使用如下所示的rendomaly生成令牌。

$length = 20;

function generate_password($length)
{
    if($length>0) 
    {
        $rand_id="";
        for($i=1; $i<=$length; $i++)
        {
            mt_srand((double)microtime() * 1000000);
            $num = mt_rand(1,36);
            $rand_id .= $this->assign_rand_value($num);
        }
    }
    return $rand_id;
}

function assign_rand_value($num)
{
    switch($num)
    {
        case "1":
            $rand_value = "a";
        break;
        case "2":
            $rand_value = "b";
        break;
        case "3":
            $rand_value = "c";
        break;
        case "4":
            $rand_value = "d";
        break;
        case "5":
            $rand_value = "e";
        break;
        case "6":
            $rand_value = "f";
        break;
        case "7":
            $rand_value = "g";
        break;
        case "8":
            $rand_value = "h";
        break;
        case "9":
            $rand_value = "i";
        break;
        case "10":
            $rand_value = "j";
        break;
        case "11":
            $rand_value = "k";
        break;
        case "12":
            $rand_value = "l";
        break;
        case "13":
            $rand_value = "m";
        break;
        case "14":
            $rand_value = "n";
        break;
        case "15":
            $rand_value = "o";
        break;
        case "16":
            $rand_value = "p";
        break;
        case "17":
            $rand_value = "q";
        break;
        case "18":
            $rand_value = "r";
        break;
        case "19":
            $rand_value = "s";
        break;
        case "20":
            $rand_value = "t";
        break;
        case "21":
            $rand_value = "u";
        break;
        case "22":
            $rand_value = "v";
        break;
        case "23":
            $rand_value = "w";
        break;
        case "24":
            $rand_value = "x";
        break;
        case "25":
            $rand_value = "y";
        break;
        case "26":
            $rand_value = "z";
        break;
        case "27":
            $rand_value = "0";
        break;
        case "28":
            $rand_value = "1";
        break;
        case "29":
            $rand_value = "2";
        break;
        case "30":
            $rand_value = "3";
        break;
        case "31":
            $rand_value = "4";
        break;
        case "32":
            $rand_value = "5";
        break;
        case "33":
            $rand_value = "6";
        break;
        case "34":
            $rand_value = "7";
        break;
        case "35":
            $rand_value = "8";
        break;
        case "36":
            $rand_value = "9";
        break;
    }
    return $rand_value;
}

这将产生20个字符的随机标记。

然后您可以将其称为

$link = $this->generate_password(20);

用于生成要在Web服务身份验证中使用的访问令牌的函数

2 个答案: