将随机数组存储在会话 cookie 中并循环遍历它

Question

我有一个数组$files，其中包含一个目录中的 php 文件列表。每次加载时，其中一个文件应随机包含在页面中。因此我改组了数组shuffle($files);。

为避免连续加载相同的 php 包含，我希望将洗牌后的数组存储在会话 cookie 中，因此每次刷新页面时都会通过数组进行循环。当到达数组的末尾时，应该生成一个新的打乱数组，......

我找到了this，但它对我不起作用。 这是我目前所拥有的：

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

这是你要找的吗？

<?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;

?>