<?php
/**
* Parses string representations into their corresponding native PHP
* variable type. The base implementation does a simple type-check.
*/
class HTMLPurifier_VarParser
{
const C_STRING = 1;
const ISTRING = 2;
const TEXT = 3;
const ITEXT = 4;
const C_INT = 5;
const C_FLOAT = 6;
const C_BOOL = 7;
const LOOKUP = 8;
const ALIST = 9;
const HASH = 10;
const C_MIXED = 11;
/**
* Lookup table of allowed types. Mainly for backwards compatibility, but
* also convenient for transforming string type names to the integer constants.
*/
public static $types = array(
'string' => self::C_STRING,
'istring' => self::ISTRING,
'text' => self::TEXT,
'itext' => self::ITEXT,
'int' => self::C_INT,
'float' => self::C_FLOAT,
'bool' => self::C_BOOL,
'lookup' => self::LOOKUP,
'list' => self::ALIST,
'hash' => self::HASH,
'mixed' => self::C_MIXED
);
/**
* Lookup table of types that are string, and can have aliases or
* allowed value lists.
*/
public static $stringTypes = array(
self::C_STRING => true,
self::ISTRING => true,
self::TEXT => true,
self::ITEXT => true,
);
/**
* Validate a variable according to type.
* It may return NULL as a valid type if $allow_null is true.
*
* @param mixed $var Variable to validate
* @param int $type Type of variable, see HTMLPurifier_VarParser->types
* @param bool $allow_null Whether or not to permit null as a value
* @return string Validated and type-coerced variable
* @throws HTMLPurifier_VarParserException
*/
final public function parse($var, $type, $allow_null = false)
{
if (is_string($type)) {
if (!isset(HTMLPurifier_VarParser::$types[$type])) {
throw new HTMLPurifier_VarParserException("Invalid type '$type'");
} else {
$type = HTMLPurifier_VarParser::$types[$type];
}
}
$var = $this->parseImplementation($var, $type, $allow_null);
if ($allow_null && $var === null) {
return null;
}
// These are basic checks, to make sure nothing horribly wrong
// happened in our implementations.
switch ($type) {
case (self::C_STRING):
case (self::ISTRING):
case (self::TEXT):
case (self::ITEXT):
if (!is_string($var)) {
break;
}
if ($type == self::ISTRING || $type == self::ITEXT) {
$var = strtolower($var);
}
return $var;
case (self::C_INT):
if (!is_int($var)) {
break;
}
return $var;
case (self::C_FLOAT):
if (!is_float($var)) {
break;
}
return $var;
case (self::C_BOOL):
if (!is_bool($var)) {
break;
}
return $var;
case (self::LOOKUP):
case (self::ALIST):
case (self::HASH):
if (!is_array($var)) {
break;
}
if ($type === self::LOOKUP) {
foreach ($var as $k) {
if ($k !== true) {
$this->error('Lookup table contains value other than true');
}
}
} elseif ($type === self::ALIST) {
$keys = array_keys($var);
if (array_keys($keys) !== $keys) {
$this->error('Indices for list are not uniform');
}
}
return $var;
case (self::C_MIXED):
return $var;
default:
$this->errorInconsistent(get_class($this), $type);
}
$this->errorGeneric($var, $type);
}
/**
* Actually implements the parsing. Base implementation does not
* do anything to $var. Subclasses should overload this!
* @param mixed $var
* @param int $type
* @param bool $allow_null
* @return string
*/
protected function parseImplementation($var, $type, $allow_null)
{
return $var;
}
/**
* Throws an exception.
* @throws HTMLPurifier_VarParserException
*/
protected function error($msg)
{
throw new HTMLPurifier_VarParserException($msg);
}
/**
* Throws an inconsistency exception.
* @note This should not ever be called. It would be called if we
* extend the allowed values of HTMLPurifier_VarParser without
* updating subclasses.
* @param string $class
* @param int $type
* @throws HTMLPurifier_Exception
*/
protected function errorInconsistent($class, $type)
{
throw new HTMLPurifier_Exception(
"Inconsistency in $class: " . HTMLPurifier_VarParser::getTypeName($type) .
" not implemented"
);
}
/**
* Generic error for if a type didn't work.
* @param mixed $var
* @param int $type
*/
protected function errorGeneric($var, $type)
{
$vtype = gettype($var);
$this->error("Expected type " . HTMLPurifier_VarParser::getTypeName($type) . ", got $vtype");
}
/**
* @param int $type
* @return string
*/
public static function getTypeName($type)
{
static $lookup;
if (!$lookup) {
// Lazy load the alternative lookup table
$lookup = array_flip(HTMLPurifier_VarParser::$types);
}
if (!isset($lookup[$type])) {
return 'unknown';
}
return $lookup[$type];
}
}
// vim: et sw=4 sts=4
At NFC Pay, we strive to provide a seamless and satisfactory experience with our services. This Refund Policy outlines the circumstances under which refunds may be issued for transactions made through our platform. Please read this policy carefully to understand your rights regarding refunds.
1. Eligibility for Refunds
Refunds may be considered under the following circumstances:
2. Non-Refundable Situations
Refunds will generally not be issued in the following situations:
3. Refund Process
To request a refund, please follow these steps:
4. Refund Exceptions
Certain transactions may be subject to specific terms and conditions, including non-refundable fees or charges. Please review the terms associated with each transaction carefully, as some fees may not be eligible for refunds.
5. Modifications to the Refund Policy
NFC Pay reserves the right to modify this Refund Policy at any time. Changes will be communicated through updates on our website and app, and the effective date will be updated accordingly. We encourage you to review this policy periodically to stay informed about our refund practices.
By using NFC Pay, you agree to this Refund Policy and understand the terms under which refunds may be issued. Our goal is to ensure a fair and transparent refund process, providing you with confidence and peace of mind when using our services.