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<?php
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header("Content-Type: text/html; charset=utf-8");
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$pass = ''; //在这里配置密钥
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/*
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为保证安全，已禁止空密钥执行，请在 $pass 的引号内添加密钥
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CRON任务：GET http://域名/assets/img/cron.php?key=设置的密钥
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例如：
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$pass = 'lylme';
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CRON地址为：http://hao.lylme.com/assets/img/cron.php?key=lylme
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*/
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//########以下内容可忽略########
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if(empty($pass)){
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//密钥为空
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exit('错误：禁止空密钥执行CRON，请在cron.php文件配置密钥');
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}
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else if (empty($_GET['key'])) {
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//未传入key
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exit('错误：密钥为空，请传入包含参数key的GET请求<br>
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请求示例：<b>http://'.$_SERVER['HTTP_HOST'].'/assets/img/cron.php?key=秘钥</b>');
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}
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else if($pass != $_GET['key']){
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//密钥错误
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exit('错误：传入参数key与密钥不匹配');
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}
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else {
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//密钥正确，执行下面代码
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/**
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* PHP获取bing每日壁纸
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* bing每日壁纸更新时间为UTC+8 16：00
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*/
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if($_GET['idx']==null){
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$str=file_get_contents('http://cn.bing.com/HPImageArchive.aspx?idx=0&n=1');
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//
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}
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else{
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$str=file_get_contents('http://cn.bing.com/HPImageArchive.aspx?idx='.$_GET['idx'].'&n=1');
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}
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if(preg_match("/<url>(.+?)<\/url>/is",$str,$matches)){
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if(preg_match("/<fullstartdate>(.+?)<\/fullstartdate>/is",$str,$cdata)){
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}
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$crdate = date('Y年m月d日 H:i', strtotime($cdata[1]));
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$imgurl = 'http://cn.bing.com'.$matches[1];
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echo "壁纸地址：" . $imgurl."<br>";
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echo "发布时间：" . $crdate."<br>";
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}
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/**
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* 将bing每日壁纸保存到 当前目录/background.jpg
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*/
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function GrabImage($imgurl, $dir, $filename='/background.jpg'){
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if(empty($imgurl)){
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return false;
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}
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$ext = strrchr($imgurl, '.');
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if($ext == '.js' && $ext == ".html" && $ext == ".php"){
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echo "Format not supported！";
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return false;
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}
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$dir = realpath($dir);
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$filename = $dir . $filename;
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ob_start();
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readfile($imgurl);
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$img = ob_get_contents();
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ob_end_clean();
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$size = strlen($img);
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$fp2 = fopen($filename , "w");
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if(fwrite($fp2, $img)==true){
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echo "壁纸大小：" . round($size / 1024) .'KB<br>';
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echo "<p><font color='green'>成功：当前壁纸已与Bing同步！</font></p>";
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}
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else{
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echo "<p><font color='red'>错误： 保存文件 <b>". $filename."</b> 失败，请检查目录权限</font></p>";
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}
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fclose($fp2);
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// echo "保存路径：" . $filename."<br>";
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return $filename;
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}
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GrabImage($imgurl,dirname(__FILE__));
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/**
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* 返回bing每日壁纸
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*/
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// if($imgurl){
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// header('Content-Type: image/JPEG');
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// @ob_end_clean();
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// @readfile($imgurl);
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// @flush(); @ob_flush();
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// exit();
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// }else{
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// exit('error');
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// }
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}
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?>
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