如何使用Zend\u Http\u客户端或其他库下载文件

我还发现 copy 它允许将一个文件从一个url直接复制到您的磁盘上,并且是一个单行程序,不需要curl的复杂性,也不需要创建一个空文件来传输file\u get\u contents的内容。

copy($file_url, $localpath);

file_put_contents($local_path,file_get_contents($file_url));

也是一行;-)

http://www.php.net/manual/en/function.copy.php#88520

需要一些测试。。。

与 CURLOPT_FILE curl_setopt ).

/**
 * @param string $url
 * @param string $destinationFilePath
 * @throws Exception
 * @return string
 */
protected function _downloadFile($url, $destinationFilePath)
{
    $fileHandle = fopen($destinationFilePath, 'w');

    if (false === $fileHandle) {
        throw new Exception('Could not open filehandle');
    }

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_FILE, $fileHandle);

    $result = curl_exec($ch);
    curl_close($ch);
    fclose($fileHandle);

    if (false === $result) {
        throw new Exception('Could not download file');
    }

    return $destinationFilePath;
}

exec() 或 system()

exec('wget http://google.de/ -O google.html -q') 

编辑以供以后参考:

<?php
function downloadCurl($url, $destinationFilePath)
{
    $fileHandle = fopen($destinationFilePath, 'w');

    if (false === $fileHandle) {
        throw new Exception('Could not open filehandle');
    }

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_FILE, $fileHandle);

    $result = curl_exec($ch);
    curl_close($ch);
    fclose($fileHandle);

    if (false === $result) {
        throw new Exception('Could not download file');
    }
}


function downloadCopy($url, $destinationFilePath)
{
    if (false === copy($url, $destinationFilePath)) {
        throw new Exception('Could not download file');
    }
}

function downloadExecWget($url, $destinationFilePath)
{
    $output = array();
    $return = null;
    exec(sprintf('wget %s -O %s -q', escapeshellarg($url), escapeshellarg($destinationFilePath)), $output, $return);

    if (1 === $return) {
        throw new Exception('Could not download file');
    }
}

这三种方法的运行时和内存使用率几乎相等。

$c = file_get_contents('http://www.example.com/my_file.tar.gz');

现在将$c写入本地文件。。。