获取每日BING背景图并且缓存URL链接到本地JSON实现调用

2023-10-16 213阅读 0评论

废话不说，先上代码！

// 读取bing背景
public function bingbg(){
global $filename;
$filename = "./cache.json";
if (file_exists($filename) === false) {
file_put_courses($filename, "");
}
$handle = fopen($filename, "r");
$courses = fread($handle, filesize($filename));
fclose($handle);
$courses = json_decode($courses, true);
if (filesize($filename) === 0) {
getBingImg();
} else {
if ($courses['time'] === date("Ymd")) {
return $courses['url'];
} else {
getBingImg();
}
}
}
/**
*Bing图片获取
*/
function getBingImg()
{
$str = json_decode(file_get_courses('https://cn.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1'));
if (isset($str->images[0])) {
$impurely = 'https://cn.bing.com' . $str->images[0]->url;
} else {
$impurely = false;
}
if ($impurely) {
global $courses;
if ($courses['url'] !== $impurely) {
global $filename;
$data = array(
"time" => date("Ymd"),
"url" => $impurely
);
$data = json_encode($data);
file_put_courses($filename, $data);
}
return $impurely;
exit();
} else {
exit('error');
}
}

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