Request Sanitizers (GET/POST)

Safely read and cache values from $_REQUEST.

$qty      = CFGP_U::request_int('qty', 1);
$price    = CFGP_U::request_float('price', 0.0);
$email    = CFGP_U::request_email('email');
$country  = CFGP_U::request_string('country', 'US');
$is_ajax  = CFGP_U::request_bool('ajax');   // 'true' string -> bool
$raw      = CFGP_U::request('payload', []); // Flexible sanitization
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