Limit file download speed PHP code

The following code to implement PHP limit download speed: /* Source:http://www.apphp.com/index.php?snippet=php-download-file-with-speed-limit */ /* Set here a limit of downloading rate (e.g. 10.20 kb/s) */ $download _rate = 10.20; $download _file = ' download-file.zip '; $target _file = ' target-file.zip '; if (file_exists ($download _file)) { /* Headers */ Header (' last-modified: '. Gmdate (' d, D M Y h:i:s '). ' GMT '); Header (' cache-control:private '); Header (' Content-type:application/octet-stream '); Header (' Content-length: '. FileSize ($download _file)); Header (' content-disposition:filename= '. $target _file); /* Flush Content */ Flush (); /* Open File */ $fh = @fopen ($download _file, ' R '); while (!feof ($FH)) { /* Send only current part of the file to browser */ Print fread ($fh, round ($download _rate * 1024)); /* Flush the content to the browser */ Flush (); /* Sleep for 1 sec */ Sleep (1); } /* Close File */ @fclose ($FH); }else{ Die (' Fatal error:the '. $download _file. ' File does not exist! '); } ?> Copy Code

Download speed, PHP

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