Curl timeouts for file download large

 · If you need to specify the timeout for the whole operation the –max-time option can be used. The –max-time option is used to specify the whole operation time out and if the operation is not completed in the specified interval the operation is canceled. For example, if the curl command is used to download a file and starts download but does not complete according to the –max-time option value . Timeouts are a problem if the response could be a large download of unknown (or even known!) size. maxtime will timeout if the large download takes eg longer than 15 minutes. And the speed-limits can be tripped by proxies that cache the entire response first before forwarding anything on. Having a fixed maximum time for a curl operation can be cumbersome, especially if you, for example, do scripted transfers and the file sizes and transfer times vary a lot. A fixed timeout value then needs to be set unnecessarily high to cover for worst cases.

How To Download Files With CURL PHP (Simple Examples) By W.S. Toh / Tips Tutorials - PHP / Novem Novem Welcome to a tutorial on how to download files with PHP CURL. The curious case of slow downloads. 04/11/ Marek Majkowski. Some time ago we discovered that certain very slow downloads were getting abruptly terminated and began investigating whether that was a client (i.e. web browser) or server (i.e. us) problem. Some users were unable to download a binary file a few megabytes in length. Once there, you may set a maximum file size for your uploads in the File Upload Max Size (MB) field. Note: We have determined that the default limit is the optimal setting to prevent browser session timeouts.

Step 1 — Fetching remote files. Out of the box, without any command-line arguments, the curl command will fetch a file and display its contents to the standard output. Let’s give it a try by downloading the bltadwin.ru file from bltadwin.ru: You’ll see the file’s contents displayed on the screen: Give curl a URL and it will fetch. when curl is used to download a large file then CURLOPT_TIMEOUT is the main option you have to set for. CURLOPT_RETURNTRANSFER has to be true in case you are getting file like pdf/csv/image etc. You may find the further detail over here(correct url) Curl Doc. Having a fixed maximum time for a curl operation can be cumbersome, especially if you, for example, do scripted transfers and the file sizes and transfer times vary a lot. A fixed timeout value then needs to be set unnecessarily high to cover for worst cases.