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Editorial Team
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Asked: 2026-05-21T10:38:16+00:00

I have a web application which establishes many FTP or SFTP connections with outside

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I have a web application which establishes many FTP or SFTP connections with outside servers. Its interface uses AJAX, and via AJAX I get file listings on remote FTP servers and return those to the client browser.

Each time I run an AJAX call, I have to reconnect to the remote server and reauthenticate. This takes a ton of extra time.

Is there a way I can somehow store FTP connection resource objects in some common memory pool and re-access to the connection resource objects with future AJAX calls? I tried Memcached, but it looks like it’s not possible to store connection resources there. Maybe I could store them in a thread and somehow access them there? Any other ideas?

I could always have a daemon manage connections and act as a proxy, but that feels overkill.

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  1. Editorial Team

    I ended up making this work using global variables (eg. $my_global). I have a ConnectionPooler singleton class which manages connections stored in a hash. Easy as pie.

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