This is how you upgrade (or downgrade) the PHP version on EasyPHP for Windows
Since August 2015, the EasyPHP developers have moved their modules into a called “Warehouse” in which they will host up to date modules for their famous WAMP server. This Warehouse is now subscription based, and if you want to download a module, say, the latest or an old PHP version, you will need to pay for it.
EasyPHP will remain free, is just the modules for customisation that are now under the subscription model. However, if you only want to update your PHP version to any in specific, just follow the steps below.
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