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@ 2014-10-06T11:33:33Z

<?php

@ini_set('display_errors', 'on');

class Configuration
{
	public static function get($param)
	{
		return true;
	}
}

class Cart
{
	public function getProducts()
	{
		return array(1);
	}
}

class Context
{
	public $cart;

	public function __construct()
	{
		$this->cart = new Cart();
	}

	public static function getContext()
	{
		return new Context();
	}
}

if (Configuration::get('LEGAL_SHIPTAXMETH') &&
	$cart = Context::getContext()->cart &&
	$products = $cart->getProducts() &&
	!empty($products))
{
	echo "OK";
}

/**
 * The above code snippet fails, because I think the condition is parsed like this:
 * 
 * Configuration::get('LEGAL_SHIPTAXMETH') &&
 * 			$cart = (Context::getContext()->cart && $products = $cart->getProducts())
 * 			&& !empty($products)
 *
 * so $cart is undefined when getProducts is called
 * 
 */

Output for git.master, git.master_jit, rfc.property-hooks: Warning: Undefined variable $cart in /in/trEeK on line 38 Fatal error: Uncaught Error: Call to a member function getProducts() on null in /in/trEeK:38 Stack trace: #0 {main} thrown in /in/trEeK on line 38
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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