各位做运维和开发的童鞋，会经常遇到一个问题，那就是有人在办公室下载东西，网速自然而然地被拉下来了，影响大家上网、办公。同样的问题，要是出现在了服务器上面，估计会让老板发火，事情发展的会更糟……今天特此想大家推荐几行关于PHP限制网速的代码，希望给大家一些帮助。
[代码] [PHP]代码
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// local file that should be send to the client |
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$local_file = &＃39;test-file.zip&＃39;; |
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// filename that the user gets as default |
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$download_file = &＃39;your-download-name.zip&＃39;; |
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// set the download rate limit (=> 20,5 kb/s) |
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if(file_exists($local_file) && is_file($local_file)) { |
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header(&＃39;Cache-control: private&＃39;); |
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header(&＃39;Content-Type: application/octet-stream&＃39;); |
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header(&＃39;Content-Length: &＃39;.filesize($local_file)); |
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header(&＃39;Content-Disposition: filename=&＃39;.$download_file); |
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$file = fopen($local_file, "r"); |
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// send the current file part to the browser |
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print fread($file, round($download_rate * 1024)); |
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// flush the content to the browser |
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die(&＃39;Error: The file &＃39;.$local_file.&＃39; does not exist!&＃39;); |
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