Bug #69010 [NEW]: Accessing bool/int/double/resource with array index returns NULL and no warning

From: Date: Sun, 08 Feb 2015 00:54:16 +0000
Subject: Bug #69010 [NEW]: Accessing bool/int/double/resource with array index returns NULL and no warning
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-190516@lists.php.net to get a copy of this message 
From:             mfischer@php.net
Operating system: OSX 10.10
PHP version:      master-Git-2015-02-08 (Git)
Package:          Arrays related
Bug Type:         Bug
Bug description:Accessing bool/int/double/resource with array index returns NULL and no warning

Description:
------------
Accessing booleans, integers and resources with an array index returns
NULL but emits no warning/notice of a potential error.

Tested with

$ sapi/cli/php -v
PHP 7.0.0-dev (cli) (built: Feb  8 2015 01:14:57)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v3.0.0-dev, Copyright (c) 1998-2015 Zend Technologies

I made up the notice messages in "Expected result" to put emphasis what
I would have expected.

Similar report: https://bugs.php.net/bug.php?id=44821 , categorized
as
documentation problem which doesn't sound right.

Test script:
---------------
<?php
$a = false;
$b = $a['index'];
var_dump($b);

$a = 1;
$b = $a['index'];
var_dump($b);

$a = 1.1;
$b = $a['index'];
var_dump($b);

$a = NULL;
$b = $a['index'];
var_dump($b);

$a = fopen($argv[0], 'r');
$b = $a['index'];
var_dump($b);


Expected result:
----------------
Notice: Illegal array access on boolean in Command line code on line 1
NULL
Notice: Illegal array access on integer in Command line code on line 1
NULL
Notice: Illegal array access on double in Command line code on line 1
NULL
Notice: Illegal array access on NULL in Command line code on line 1
NULL
Notice: Illegal array access on resource in Command line code on line 1
NULL

Actual result:
--------------
NULL
NULL
NULL
NULL
NULL


-- 
Edit bug report at https://bugs.php.net/bug.php?id=69010&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=69010&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=69010&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=69010&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=69010&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=69010&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=69010&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=69010&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=69010&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=69010&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=69010&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=69010&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=69010&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=69010&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69010&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=69010&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=69010&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=69010&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=69010&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=69010&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=69010&r=mysqlcfg

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