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Sameer Borate's Blog: Parallel cURL execution in PHP

Note: This article was originally published at PHPDeveloper on 6 August 2010.
PHPDeveloper

New on his blog today Sameer Borate has a post looking at his method for making parallel connections with curl based on this library from Pete Wardens.

Most people use the 'easy' mode - in this mode when we issue multiple requests, the second request will not start until the first one is complete. This is known as synchronous execution, and this is the one we normally use. [...] In [multi] mode all requests can be handled in parallel or asynchronously. And it can be quite handy and time saving on many occasions.

He gives some code examples of how to use the library to simplify the curl connections and requests and pass the result off to a callback when it's done. His more practical example shows how to search for a set of terms on Google and return the results for output.