<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
namespace Nette\Utils;
use Nette;
use function is_array, is_object, is_string;
/**
* PHP callable tools.
*/
final class Callback
{
use Nette\StaticClass;
/**
* Invokes internal PHP function with own error handler.
*/
public static function invokeSafe(string $function, array $args, callable $onError): mixed
{
$prev = set_error_handler(function ($severity, $message, $file) use ($onError, &$prev, $function): ?bool {
if ($file === __FILE__) {
$msg = ini_get('html_errors')
? Html::htmlToText($message)
: $message;
$msg = preg_replace("#^$function\\(.*?\\): #", '', $msg);
if ($onError($msg, $severity) !== false) {
return null;
}
}
return $prev ? $prev(...func_get_args()) : false;
});
try {
return $function(...$args);
} finally {
restore_error_handler();
}
}
/**
* Checks that $callable is valid PHP callback. Otherwise throws exception. If the $syntax is set to true, only verifies
* that $callable has a valid structure to be used as a callback, but does not verify if the class or method actually exists.
* @return callable
* @throws Nette\InvalidArgumentException
*/
public static function check(mixed $callable, bool $syntax = false)
{
if (!is_callable($callable, $syntax)) {
throw new Nette\InvalidArgumentException(
$syntax
? 'Given value is not a callable type.'
: sprintf("Callback '%s' is not callable.", self::toString($callable)),
);
}
return $callable;
}
/**
* Converts PHP callback to textual form. Class or method may not exists.
*/
public static function toString(mixed $callable): string
{
if ($callable instanceof \Closure) {
$inner = self::unwrap($callable);
return '{closure' . ($inner instanceof \Closure ? '}' : ' ' . self::toString($inner) . '}');
} else {
is_callable(is_object($callable) ? [$callable, '__invoke'] : $callable, true, $textual);
return $textual;
}
}
/**
* Returns reflection for method or function used in PHP callback.
* @param callable $callable type check is escalated to ReflectionException
* @throws \ReflectionException if callback is not valid
*/
public static function toReflection($callable): \ReflectionMethod|\ReflectionFunction
{
if ($callable instanceof \Closure) {
$callable = self::unwrap($callable);
}
if (is_string($callable) && str_contains($callable, '::')) {
return new ReflectionMethod($callable);
} elseif (is_array($callable)) {
return new ReflectionMethod($callable[0], $callable[1]);
} elseif (is_object($callable) && !$callable instanceof \Closure) {
return new ReflectionMethod($callable, '__invoke');
} else {
return new \ReflectionFunction($callable);
}
}
/**
* Checks whether PHP callback is function or static method.
*/
public static function isStatic(callable $callable): bool
{
return is_string(is_array($callable) ? $callable[0] : $callable);
}
/**
* Unwraps closure created by Closure::fromCallable().
*/
public static function unwrap(\Closure $closure): callable|array
{
$r = new \ReflectionFunction($closure);
$class = $r->getClosureScopeClass()?->name;
if (str_ends_with($r->name, '}')) {
return $closure;
} elseif (($obj = $r->getClosureThis()) && $obj::class === $class) {
return [$obj, $r->name];
} elseif ($class) {
return [$class, $r->name];
} else {
return $r->name;
}
}
}
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.