29 lines
768 B
PHP
29 lines
768 B
PHP
<?php
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$file = 'counter.dat';
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// 读取并自增
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$counter = (int)@file_get_contents($file);
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$counter++;
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// 使用 LOCK_EX 防止并发写入冲突
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file_put_contents($file, $counter, LOCK_EX);
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header('Access-Control-Allow-Origin:*');
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$str = file_get_contents('http://cn.bing.com/HPImageArchive.aspx?idx=0&n=1');
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if ($str === false) {
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exit('Failed to retrieve data from Bing');
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}
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$xml = simplexml_load_string($str);
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if ($xml && isset($xml->image->url)) {
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$imgurl = 'http://cn.bing.com' . $xml->image->url;
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}
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if(isset($imgurl) && $imgurl){
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header('Content-Type: image/JPEG');
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ob_end_clean();
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readfile($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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