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我想要做的就是使用PHP来执行youtube-dl -x --audio-format mp3 "token"并获得以下参数JSON：从PHP代码中执行shell脚本
- 状态（错误= 0 /成功= 1）
- 保存的文件URL （您将在控制台结果示例中看到它：
[avconv] Destination: Jennifer Lopez - Booty ft. Iggy Azalea-nxtIRArhVD4.mp3）
这是我写的PHP代码。
<?php
if ($_GET["token"]) {
$url = $_GET["token"];
$template = '/home/website/public_html/%(id)s.%(ext)s';
$string = ('youtube-dl -x --audio-format mp3 ' . escapeshellarg($url) . ' ' . escapeshellarg($template));
$descriptorspec = array(
0 => array("pipe", "r"), // stdin
1 => array("pipe", "w"), // stdout
2 => array("pipe", "w"), // stderr
);
$process = proc_open($string, $descriptorspec, $pipes);
$stdout = stream_get_contents($pipes[1]);
fclose($pipes[1]);
$stderr = stream_get_contents($pipes[2]);
fclose($pipes[2]);
$ret = proc_close($process);
echo json_encode(array('status' => $ret, 'errors' => $stderr,
'url_orginal' => $url, 'output' => $stdout,
'command' => $string));
}
?>
基本上它执行
youtube-dl -x --audio-format mp3 "token"
当我在控制台执行相同的命令（通过SSH），我得到这样的
[youtube] Setting language
[youtube] Confirming age
[youtube] nxtIRArhVD4: Downloading webpage
[youtube] nxtIRArhVD4: Downloading video info webpage
[youtube] nxtIRArhVD4: Extracting video information
[youtube] nxtIRArhVD4: Encrypted signatures detected.
[youtube] nxtIRArhVD4: Downloading js player vflE7vgXe
[download] Destination: Jennifer Lopez - Booty ft. Iggy Azalea-nxtIRArhVD4.m4a
[download] 100% of 3.93MiB in 00:00
[avconv] Destination: Jennifer Lopez - Booty ft. Iggy Azalea-nxtIRArhVD4.mp3
Deleting original file Jennifer Lopez - Booty ft. Iggy Azalea-nxtIRArhVD4.m4a (pass -k to keep)
结果当我在PHP环境中执行相同的命令越来越关注json结果
{
"status":1,
"errors":"WARNING: The url doesn't specify the protocol, trying with http\nWARNING: Could not send HEAD request to http:\/\/\/home\/website\/public_html\/%(id)s.%(ext)s: \nWARNING: Falling back on generic information extractor.\nERROR: Unable to download webpage: \n",
"url_orginal":"nxtIRArhVD4",
"output":"[youtube] Setting language\n[youtube] Confirming age\n[youtube] nxtIRArhVD4: Downloading webpage\n[youtube] nxtIRArhVD4: Downloading video info webpage\n[youtube] nxtIRArhVD4: Extracting video information\n[youtube] nxtIRArhVD4: Encrypted signatures detected.\n[youtube] nxtIRArhVD4: Downloading js player vflE7vgXe\n[download] Destination: Jennifer Lopez - Booty ft. Iggy Azalea-nxtIRArhVD4.m4a\n\r[download] 0.0% of 3.93MiB at 729.44KiB\/s ETA 00:05\r[download] 0.1% of 3.93MiB at 1.86MiB\/s ETA 00:02\r[download] 0.2% of 3.93MiB at 3.86MiB\/s ETA 00:01\r[download] 0.4% of 3.93MiB at 7.69MiB\/s ETA 00:00\r[download] 0.8% of 3.93MiB at 13.79MiB\/s ETA 00:00\r[download] 1.6% of 3.93MiB at 17.80MiB\/s ETA 00:00\r[download] 3.2% of 3.93MiB at 17.64MiB\/s ETA 00:00\r[download] 6.3% of 3.93MiB at 17.79MiB\/s ETA 00:00\r[download] 12.7% of 3.93MiB at 20.88MiB\/s ETA 00:00\r[download] 25.4% of 3.93MiB at 25.21MiB\/s ETA 00:00\r[download] 50.8% of 3.93MiB at 28.47MiB\/s ETA 00:00\r[download] 100.0% of 3.93MiB at 41.23MiB\/s ETA 00:00\r[download] 100% of 3.93MiB in 00:00\n[avconv] Destination: Jennifer Lopez - Booty ft. Iggy Azalea-nxtIRArhVD4.mp3\nDeleting original file Jennifer Lopez - Booty ft. Iggy Azalea-nxtIRArhVD4.m4a (pass -k to keep)\n[generic] %(id)s: Requesting header\n[generic] %(id)s: Downloading webpage\n",
"command":"youtube-dl --extract-audio --audio-format mp3 'nxtIRArhVD4' '\/home\/website\/public_html\/%(id)s.%(ext)s'"
}
事实上，PHP做的工作和保存文件，但输出不相同，我无法获得目标文件的网址。
我在做什么错？有什么建议么？