PHP、golang 如何播放mp4文件

1<?php
2function PutMovie($file) {
3    header("Content-type: video/mp4");
4    header("Accept-Ranges: bytes");
5     
6    $size = filesize($file);
7    if(isset($_SERVER['HTTP_RANGE'])){
8        header("HTTP/1.1 206 Partial Content");
9        list($name, $range) = explode("=", $_SERVER['HTTP_RANGE']);
10        list($begin, $end) =explode("-", $range);
11        if($end == 0) $end = $size - 1;
12    }
13    else {
14        $begin = 0; $end = $size - 1;
15    }
16    header("Content-Length: " . ($end - $begin + 1));
17    header("Content-Disposition: filename=".basename($file));
18    header("Content-Range: bytes ".$begin."-".$end."/".$size);
19 
20    $fp = fopen($file, 'rb');
21    fseek($fp, $begin);
22    while(!feof($fp)) {
23        $p = min(1024, $end - $begin + 1);
24        $begin += $p;
25        echo fread($fp, $p);
26    }
27    fclose($fp);
28}
29PutMovie("1.mp4");
30?>
31
32http.ServeFile(w, r, "/webserver/1.mp4")