php下载文件显示进度(适用于cli模式或长连接)
更新:HHH   时间:2023-1-7


  1. 代码:
    <?php
    /*
    @desc:php下载文件显示进度
    @param file 待下载文件名
    @param name 存储到本地文件名
    */
    function downloadprogress($file,$name){
    $dir = dirname($name);
    if(!is_dir($dir)){
        mkdir($dir,0755,true);
    }
    ob_start();
    set_time_limit(0);
    $fr = fopen ($file, "rb");
    if ($fr) {
        $content = file_get_contents($file);
        $filesize = strlen($content);
        $fw = fopen ($name, "wb");
        $downlen=0;
        $last = 0;
        $diff = 0;
        echo "[";
        if ($fw) {
            while(!feof($fr)) {
                $data = fread($fr, 1024 * 8 );
                $downlen += strlen($data);
                fwrite($fw, $data, 1024 * 8 );
                $percent = round($downlen/$filesize*100,2);
                $diff += $percent - $last;
                if($diff > 1){
                    echo "#";
                    $diff = 0;
                }
                $last = $percent;
                ob_flush();
                flush();
            }
            echo "#]done";
        }
        if ($fr) {
            fclose($fr);
        }
        if ($fw) {
            fclose($fw);
        }
    }
    }
  2. 测试:
    downloadprogress('2018.rar','aaa/01.rar');
  3. 输出(cli下):
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