PHP array_diff* API isn't recommended for multidimensional arrays [#1829260]

This red bar notification appears when these conditions are met:

1. Users choose to show a menu link for the article
2. Users input more than 1 tag.
3. There are at least 1 Thai word (คำไทย) in those tags

Not sure this notification would also appear in other languages. I'd be nice to check.

Array to string conversion in DrupalDefaultEntityController->cacheGet()

Comment	File	Size	Author
	thai-language-issue.jpg	83.7 KB	weeix

Comments

Comment #1

Anonymous (not verified) commented 1 November 2012 at 17:36

Category:	bug	» support
Status:	Active	» Postponed (maintainer needs more info)

What does your line 368 of includes/entity.inc say? I don't see how an array could become a string with PHP function array_diff_assoc().

file include/entity.inc @line 368

        if (array_diff_assoc($conditions, $entity_values)) {

Both $conditions and $entity_values are an array.
Maybe you need to turn off the Notices from PHP in php.ini or your settings.php file. This is recommended practice for a production system.

http://www.php.net/manual/en/errorfunc.configuration.php#ini.error-repor...
http://php.net/manual/en/function.error-reporting.php

Comment #2

weeix commented 1 November 2012 at 18:41

Status:

Postponed (maintainer needs more info)

» Closed (won't fix)

Thanks earnie. I'll turn notices off as you suggest.

btw, after reading this issue in php.net:
https://bugs.php.net/bug.php?id=62115

I found this message by maarten:

The array_diff* methods aren't recursive. So you probably won't want to use them for multidimensional arrays, and thus it's an improvement that >= 5.4.0 warns you.

$entity_values is a multidimensional array, so it make sense if I'm noticed

but what I still wonder is when we cut the tags to 1 or none, PHP stop notifying me although the $entity_values doesn't change at all.

Comment #3

Anonymous (not verified) commented 2 November 2012 at 12:04

Title:	Notice: Array to string conversion in DrupalDefaultEntityController->cacheGet()	» PHP array_diff* API isn't recommended for multidimensional arrays
Version:	7.16	» 8.x-dev
Component:	entity system	» other
Category:	support	» bug
Status:	Closed (won't fix)	» Active