What are the reasons and considerations for pre-processing requests before they are sent over the network in PHP?

Pre-processing requests before sending them over the network in PHP can help improve security by sanitizing user input, optimizing data for efficient transmission, and ensuring compatibility with the receiving end. This can involve tasks such as validating input, escaping special characters, compressing data, and converting data formats. 

// Example of pre-processing a request before sending it over the network in PHP

// Sanitize user input
$userInput = $_POST['user_input'];
$cleanInput = filter_var($userInput, FILTER_SANITIZE_STRING);

// Compress data
$compressedData = gzcompress($cleanInput);

// Send the pre-processed data over the network
// Code to send $compressedData to the server

Keywords

validation sanitization security performance data transformation

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