<div>
You could try using htaccess:<br />
<br />
Text from <a href="http://www.bloghash.com/2006/11/beginners-guide-to-htaccess-file-with-examples-part-ii/" rel="ugc">http://www.bloghash.com/2006/11/beginners-guide-to-htaccess-file-with-examples-part-ii/</a>&nbsp;:<br />
<br />
Limiting Number of simultaneous connections<br />
To limit the number of simultaneous connections to a directory or your entire site, use the below line. If you place it in a directory other than the root directory, then it will limit the connections to that directory and its sub-directories only. Placing it in htaccess file of root directory will implement it for entire site.<br />
<br />
Syntax:<br />
MaxClients &lt;&nbsp;number-of-connections&gt;<br />
<br />
Examples:<br />
MaxClients 40<br />
MaxClients 100<br />
<br />

</div>


You could try using htaccess:

Text from http://www.bloghash.com/2006/11/beginners-guide-to-htaccess-file-with-examples-part-ii/ [http://www.bloghash.com/2006/11/beginners-guide-to-htaccess-file-with-examples-part-ii/] :

Limiting Number of simultaneous connections
To limit the number of simultaneous connections to a directory or your entire site, use the below line. If you place it in a directory other than the root directory, then it will limit the connections to that directory and its sub-directories only. Placing it in htaccess file of root directory will implement it for entire site.

Syntax:
MaxClients < number-of-connections>

Examples:
MaxClients 40
MaxClients 100



<div>
Thank rstewar, but I want to limit concurrent connection when user download files, in particular with that PHP script. (<a href="http://www.php.net/manual/en/function.fread.php" rel="ugc">http://www.php.net/manual/en/function.fread.php</a>)<br />
<br />

</div>


Thank rstewar, but I want to limit concurrent connection when user download files, in particular with that PHP script. (http://www.php.net/manual/en/function.fread.php [http://www.php.net/manual/en/function.fread.php])



<div>
I'm stil waiting solution :)
</div>


<div>
<div class="content wysiwyg-content">
I use this php script to support resumable download:<br />
<br />
<a href="http://www.php.net/manual/en/function.fread.php" rel="ugc">http://www.php.net/manual/en/function.fread.php</a><br />
<br />
Some download programs (like IDM) can open 8-16 concurrent connections to download file.<br />
<br />
Now, I want to limit number of concurrent connection (ex. 1,2,3...).<br />
How to do this?<br />
<br />
Thanks in advance!
</div>
</div>


I use this php script to support resumable download:

http://www.php.net/manual/en/function.fread.php

Some download programs (like IDM) can open 8-16 concurrent connections to download file.

Now, I want to limit number of concurrent connection (ex. 1,2,3...).
How to do this?

Thanks in advance!

How to limit number connections of client (IDM...) with Download Resumable - PHP ?

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.