在會話cookie中存儲隨機數組並通過它循環

Question

我有一個數組$files包含一個目錄中的php文件列表。每次加載時，其中一個文件應隨機包含在頁面中。因此，我洗了陣列shuffle($files);。

爲了避免同一個php include被加載到一行中，我希望將shuffle數組存儲在會話cookie中，因此每次頁面刷新時都會有一個循環遍歷數組。當數組結束時，應該生成一個新的混洗陣列，...

我發現this但它沒有爲我工作。 這是我到目前爲止有：

PHP

// Get files from directory and store them in an array 
$files = glob("teaser-images/*.php"); 

// Start session 
session_start(); 

// Randomize array and store it in a session cookie 
shuffle($files); 

// If there’s already a cookie find the corresponding index and loop trough the array each refresh 
if (isset($_SESSION['last_index'])) { 
    $_SESSION['last_index'] = … 

    // If the end of the array is reached shuffle it again and start all over 
} 

// If there’s no cookie start with the first value in the array   
else { 
    $_SESSION['last_index'] = … 
} 

// Include the php file 
include($random_file); 

Answer 1

這是你想要的？

<?php 

// Initialize the array 
$files = array(); 

session_start(); 

var_dump($_SESSION['FILES']); 
// Check if this is the first time visit or if there are files left to randomly select 
if(!isset($_SESSION['FILES']) OR count($_SESSION['FILES']) == 0){ 
    // If its the first time visit or all files have already been selected -> reload with all files 
    $files = array(1, 2, 3, 4, 5); 
    echo("first time visit/reloaded/"); 
} 
else{ 
    // Use the files that are left 
    $files = $_SESSION['FILES']; 
    echo("use the files that are left/"); 
} 

// Get a random file 
$selectedFile = array_rand($files); 
var_dump($selectedFile); 

//include the random file 
print_r($files[$selectedFile]); 
// Remove randome file from array 
unset($files[$selectedFile]); 

// Set the session with the remaining files 
$_SESSION['FILES'] = $files; 

?>