How can PHP developers ensure they are correctly capturing POST data from external servers in their scripts?

PHP developers can ensure they are correctly capturing POST data from external servers in their scripts by validating and sanitizing the input data to prevent security vulnerabilities such as SQL injection and cross-site scripting attacks. They can also use PHP functions like filter_input() or $_POST to securely access the POST data. 

// Validate and sanitize POST data from external server
$input_data = filter_input_array(INPUT_POST, FILTER_SANITIZE_STRING);

// Access specific POST data securely
$username = isset($input_data['username']) ? $input_data['username'] : '';
$password = isset($input_data['password']) ? $input_data['password'] : '';

Keywords

PHP POST data external servers data validation error handling

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