InFields.class.php

<?php

class InFields {
    
    /**
     * Fetches value from POST. 
     * $fields array with post fields to be fetched
     * $strict if strict mode is enabled, the fields will be required (if not, they will be added, but have null as value)
     * $stringFilter if the stringFilter is enabled, the variables are ran through filter_var with FILTER_SANITIZE_STRING
     * 
     * @throws AppException (w/ id 'missing_field') on missing field.
     */
    public static function fetchMultiple($fields = [], $strict = true, $stringFilter = true) {
        if (!is_array($fields)) return false;

        $out = [];
        
        foreach ($fields as $key => $value) {
            if (!isset($_POST[$value])) {
                if ($strict) throw new AppException('missing_field', 'Missing field ' . $value);
                $out[$value] = null;
            } else {
                if ($stringFilter) {
                    $out[$value] = filter_var($_POST[$value], FILTER_SANITIZE_STRING);
                } else {
                    $out[$value] = $_POST[$value];
                } 
            }
        }

        return $out;

        //end __construct
    }

    //end InFields
}


?>