A PHP proxy is a single script or group of scripts that takes information from a web page or interface and transfers it to a web server for some type of processing. PHP proxies can be simple or complex, taking input from a single form or linking together multiple interfaces and computer terminals into a coherent whole. Unlike the client-side JavaScript language, PHP scripts and proxies are all run on a web server, which gives them the advantage of not needing to rely on software a user has installed.

Scripts comprising a PHP proxy can be written in two ways. First, they can be written as a sequence of commands, to be executed one after the other. Second, they can be structured like classes in an object-oriented programming language. Either type of PHP script can be included inside other PHP scripts to minimize repeated code throughout the proxy.


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