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 程式師世界 >> 編程語言 >> 網頁編程 >> PHP編程 >> 關於PHP編程 >> 解析php多線程下載遠程多個文件

解析php多線程下載遠程多個文件

編輯:關於PHP編程

    代碼如下:


    function remote($urls, $name = '', $path = '', $dir = './images/') {
    if (!is_array($urls) or count($urls) == 0) {
    return false;
    }
    dmkdir($dir);
    $curl = $text = array();
    foreach($urls as $k => $v) {
    if (!empty($v) && preg_match("~^http~i", $v)) {
    $nurl[$k] = trim(str_replace(' ', "%20", $v));
    $curl[$k] = curl_init($nurl[$k]);
    curl_setopt($curl[$k], CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 );
    curl_setopt($curl[$k], CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl[$k], CURLOPT_HEADER, 0);
    curl_setopt($curl[$k], CURLOPT_CONNECTTIMEOUT, 20);
    if(!isset($handle)){
    $handle = curl_multi_init();
    }
    curl_multi_add_handle($handle, $curl[$k]);
    }
    continue ;
    }
    $active = null;
    do{
    $mrc = @curl_multi_exec($handle, $active);
    } while ($mrc == CURLM_CALL_MULTI_PERFORM);
    while ($active && $mrc == CURLM_OK) {
    if (curl_multi_select($handle) != -1) {
    do {
    $mrc = curl_multi_exec($handle, $active);
    } while ($mrc == CURLM_CALL_MULTI_PERFORM);
    }
    }
    foreach ($curl as $k => $v) {
    if (curl_error($curl[$k]) == "") {
    if ($k == 0) {
    $fname[$k] = strtolower($name . '.' . pathinfo($urls[$k], PATHINFO_EXTENSION));
    } else {
    $fname[$k] = strtolower($name . '_' . $k . '.' . pathinfo($urls[$k], PATHINFO_EXTENSION));
    }
    $text[$k] = (string) curl_multi_getcontent($curl[$k]);
    $filedir[$k] = $dir.'/' . $fname[$k];
    if (file_put_contents($filedir[$k], $text[$k])) {
    $filepath[$k] = $path . $fname[$k];
    }
    }
    curl_multi_remove_handle($handle, $curl[$k]);
    curl_close($curl[$k]);
    }
    curl_multi_close($handle);
    return $filepath;
    }
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