Home > php教程 > PHP源码 > PHP下载/采集远程图片到本地(改)

PHP下载/采集远程图片到本地(改)

PHP中文网
Release: 2016-05-23 16:40:24
Original
983 people have browsed it

PHP下载/采集远程图片到本地(改)    

/**
 * 下载远程图片到本地
 *
 * @param string $url 远程文件地址
 * @param string $filename 保存后的文件名(为空时则为随机生成的文件名,否则为原文件名)
 * @param array $fileType 允许的文件类型
 * @param string $dirName 文件保存的路径(路径其余部分根据时间系统自动生成)
 * @param int $type 远程获取文件的方式
 * @return json 返回文件名、文件的保存路径
 * @author blog.snsgou.com
 */
function download_image($url, $fileName = '', $dirName, $fileType = array('jpg', 'gif', 'png'), $type = 1)
{
    if ($url == '')
    {
        return false;
    }
 
    // 获取文件原文件名
    $defaultFileName = basename($url);
 
    // 获取文件类型
    $suffix = substr(strrchr($url, '.'), 1);
    if (!in_array($suffix, $fileType))
    {
        return false;
    }
 
    // 设置保存后的文件名
    $fileName = $fileName == '' ? time() . rand(0, 9) . '.' . $suffix : $defaultFileName;
 
    // 获取远程文件资源
    if ($type)
    {
        $ch = curl_init();
        $timeout = 30;
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
        $file = curl_exec($ch);
        curl_close($ch);
    }
    else
    {
        ob_start();
        readfile($url);
        $file = ob_get_contents();
        ob_end_clean();
    }
 
    // 设置文件保存路径
    //$dirName = $dirName . '/' . date('Y', time()) . '/' . date('m', time()) . '/' . date('d', time());
    $dirName = $dirName . '/' . date('Ym', time());
    if (!file_exists($dirName))
    {
        mkdir($dirName, 0777, true);
    }
 
    // 保存文件
    $res = fopen($dirName . '/' . $fileName, 'a');
    fwrite($res, $file);
    fclose($res);
 
    return array(
        'fileName' => $fileName,
        'saveDir' => $dirName
    );
}
Copy after login

 以上就是PHP下载/采集远程图片到本地(改)    的内容,更多相关内容请关注PHP中文网(www.php.cn)!


Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template