php如何下载远程图片/文件到本地服务器

发布日期: 2021-09-01 10:36:42

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php如何下载远程图片/文件到本地服务器

```php

<?php
/**
 * @describe:下载远程图片到本地
 */
public function downLongFile()
{
    $type = $this->request->param("type");
    $url = $this->request->param("url");
    $d = date("Ymd", time());
    $save_dir = ROOT_PATH . "public";
    $dk = "/hhy/" . $d . "/";
    $save_dir .= $dk;
    $ext = strrchr($url, '.');
    $filename = time() . $ext;
    if (!is_dir($save_dir)) {
        @mkdir($save_dir, 0777, true);
    }
    try {
        if ($type == 1) {
            ob_start();
            $img = file_get_contents($url);
            ob_end_clean();
            $fp2 = @fopen($save_dir . $filename, "a");
            fwrite($fp2, $img);
            fclose($fp2);
            unset($img, $url);
        } elseif ($type == 2) {
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
            curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); // 模拟用户使用的浏览器
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
            curl_setopt($ch, CURLOPT_AUTOREFERER, 1); // 自动设置Referer
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
            $file = curl_exec($ch);
            curl_close($ch);
            file_put_contents($save_dir . $filename, $file);
        } elseif ($type == 3) {
            $file = file_get_contents($url);
            file_put_contents($save_dir . $filename, $file);
        } elseif ($type == 4) {
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_URL, $url);
            ob_start();
            curl_exec($ch);
            $return_content = ob_get_contents();
            ob_end_clean();
            $fp = @fopen($save_dir . $filename, "a"); //将文件绑定到流
            fwrite($fp, $return_content); //写入文件
            fclose($fp);
        }
        $u =
            request()->domain() . $dk . $filename;
        $this->success($u);
    } catch (Exception $exception) {
        $this->error($exception->getMessage());
    }
}

```

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