/**
* @param string $imgUrl image url e.g. http://static.oschina.net/uploads/user/277/554046_50.jpg
* @param string $savePath 图片保存路径
* @param string $rename 图片重命名(只写名称，不用后缀) 为空则使用原名称
* @return string
*/
public static function fetchImg($imgUrl, $savePath, $rename = '')
{
// e.g. http://static.oschina.net/uploads/user/277/554046_50.jpg?t=34512323
if (strpos($imgUrl, '?')) {
list($real, ) = explode('?', $imgUrl, 2);
} else {
$real = $imgUrl;
}
$last = trim(strrchr($real, '/'), '/');
// special url e.g http://img.blog.csdn.net/20150929103749499
if (false === strpos($last, '.')) {
$suffix = '.jpg';
$name = $rename ?: $last;
} else {
$suffix = File::getSuffix($real) ?: '.jpg';
$name = $rename ?: File::getName($real, 1);
}
$imgFile = $savePath . '/' . $name . $suffix;
if (file_exists($imgFile)) {
return $imgFile;
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, UrlHelper::encode2($imgUrl));
// curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// 伪造网页来源地址,伪造来自百度的表单提交
curl_setopt($ch, CURLOPT_REFERER, 'http://www.baidu.com');
$imgData = self::execute($ch);
Directory::create($savePath);
file_put_contents($imgFile, $imgData);
return $imgFile;
}
public static function buildUrl($path, $baseUrl = '', $basePath = '', $hostUrl = '')
{
$path = str_replace('\\', '/', trim($path));
//是完整的url路径
if (UrlHelper::isUrl($path)) {
return $path;
// 是url绝对路径
} else {
if ($path[0] == '/') {
return $hostUrl ? $hostUrl . $path : $path;
}
}
// 相对路径
$baseUrl = $baseUrl ? rtrim($baseUrl, '/') . '/' : '/';
if ($basePath) {
$basePath = rtrim($basePath, '/') . '/';
if (!file_exists($basePath . $path)) {
throw new \RuntimeException('资源 [' . $basePath . $path . '] 不存在 !!');
}
}
return ($hostUrl ? $hostUrl . '/' : $baseUrl) . $path;
}
/**
* Sets the 资源基础URL
* @param string $baseUrl
* @return $this
*/
public function setBaseUrl($baseUrl)
{
if ($baseUrl) {
if (UrlHelper::isUrl($baseUrl)) {
$this->baseUrl = rtrim($baseUrl, '/') . '/';
} else {
$this->baseUrl = rtrim($baseUrl, '/') . '/';
}
}
return $this;
}
