randomimg.php

<?php

//存有鏈接的文件名

$filename = "randomimg.txt";

//從文本獲取鏈接

$pics = [];

$fs = fopen($filename, "r");

while(!feof($fs)){

$line=trim(fgets($fs));

if($line!=''){

array_push($pics, $line);

}

}

//從數(shù)組隨機(jī)獲取鏈接

$pic = $pics[array_rand($pics)];

//返回指定格式

$type=$_GET['type'];

switch($type){

//JSON返回

case 'json':

header('Content-type:text/json');

die(json_encode(['pic'=>$pic]));

default:

die(header("Location: $pic"));

}

randomimg.txt

https://imglf4.lf127.net/img/K0RRZklSb1VXbUttV0g1Z3VteWNLL0hhcHJFalFMMFlFT0M0ZGFndzFXQXZVSnJBaG5YMHl3PT0.jpg

https://imglf5.lf127.net/img/K0RRZklSb1VXbUttV0g1Z3VteWNLNTN1RWZHaWV3T3pya0x5dkFrWFBlTFRacWg4U2dvVjJBPT0.jpg

https://imglf3.lf127.net/img/K0RRZklSb1VXbUttV0g1Z3VteWNLM0R4K2crVHJiTUtyTlp3WXN4TEpIOVJOSFdVSXdPK1NRPT0.jpg

https://imglf4.lf127.net/img/K0RRZklSb1VXbUttV0g1Z3VteWNLMlBabm1GT091TldUU3JVTlMxMExlZ1FBajlGVzA5N2d3PT0.jpg

https://imglf3.lf127.net/img/K0RRZklSb1VXbUttV0g1Z3VteWNLNjJyUXBUMjBFUnV0MzJITEZQdXpVYXlzM3R3Q0lqQTJBPT0.png

https://imglf5.lf127.net/img/K0RRZklSb1VXbUttV0g1Z3VteWNLeHh3a0V2SmpzMlB5enRIMk51NDI3eGJZT2JRR1ZWSlFRPT0.jpg

https://imglf3.lf127.net/img/K0RRZklSb1VXbUttV0g1Z3VteWNLK0ZxUW5JbGVVL0RVaXgrcDNIN0RheHpKWjN4QjVZd2pRPT0.jpg

https://imglf4.lf127.net/img/K0RRZklSb1VXbUp5Rm9BWHI2UXMxcVdzelFIVjNrOHVrenNzN2xnRG5ieTdNdStSazhqUEdBPT0.jpg

https://imglf3.lf127.net/img/K0RRZklSb1VXbUpTUXFGVWlBQ3FzYU1kY0ZWZi9MU3JSQmlJU3J1OCt6aGZVdVZ0TUNHblZ3PT0.png

https://imglf3.lf127.net/img/K0RRZklSb1VXbUpTUXFGVWlBQ3FzZHlwNSt1NlZObUtuMThBQTNmMzFCVU5KckNxVnZET2lnPT0.jpg

https://imglf5.lf127.net/img/K0RRZklSb1VXbUpTUXFGVWlBQ3FzUlRXbm5SeHdyMks3QVFhbTRWdmVEVll5TTQxS2Q0TDZRPT0.jpg

https://imglf4.lf127.net/img/K0RRZklSb1VXbUpTUXFGVWlBQ3FzYkdtaE1GN2dYQTFJcVhKbWRkL1N6SXpLQkVSMDA3Y25RPT0.jpg

https://imglf4.lf127.net/img/K0RRZklSb1VXbUpTUXFGVWlBQ3FzZm56UE5DQm1wQTlqNXVMN2xEdTQxcFAzS2NjN1k1K2NnPT0.jpg

https://imglf3.lf127.net/img/K0RRZklSb1VXbUpTUXFGVWlBQ3FzZm1KbUZ2aFFaNGtZdEJYejJ0cTk0aUJNRGN6bkRzdDZRPT0.jpg

顯然易見(jiàn)地，訪問(wèn) randomimg.php 即可隨機(jī)轉(zhuǎn)到?randomimg.txt 文件中的圖片地址。

randomimg.php 的默認(rèn)配置下，這兩個(gè)文件需要在同一目錄。

圖床我用的是 lofter ，目前沒(méi)有什么問(wèn)題。

以前我是用來(lái)這個(gè)設(shè)置 WordPress 主題 Sakurairo 的自定義首頁(yè)圖的。也可以做2組，用來(lái)搞多端分離。