<?php
error_reporting(0);
$file_path = "data/images.json";
if(file_exists($file_path)){
    $fp = fopen($file_path,"r");
    $str = fread($fp,filesize($file_path));
    $res = json_decode($str,true);
    $randNum = rand(0,sizeof($res)-1);
    $url = $res[$randNum]['url'];
    $name = $res[$randNum]['name'];
    if($_GET['return'] == 'json'){
        $arr = ['code' => 0,'url' => $url,'name' => $name];
        echo json_encode($arr);
    } else {
        header('Location:'.$url);
    }
}