Uninitialized string offset: 0 on line 265

Hi John

My apologies as it was not clear to me where this list resides.
But without my fix the list is still there
Extensions
50
bcmath 7.2.16
bz2 7.2.16
calendar 7.2.16
cgi-fcgi false
Core 7.2.16
ctype 7.2.16
curl 7.2.16
date 7.2.16
dom 20031129
exif 7.2.16
fileinfo 1.0.5
filter 7.2.16
ftp 7.2.16
gd 7.2.16
gettext 7.2.16
hash 1.0
iconv 7.2.16
imap 7.2.16
intl 1.1.0
json 1.6.0
libxml 7.2.16
mbstring 7.2.16
mysqli 7.2.16
mysqlnd 5.0.12-dev
openssl 7.2.16
pcre 7.2.16
PDO 7.2.16
pdo_mysql 7.2.16
pdo_sqlite 7.2.16
Phar 2.0.2
posix 7.2.16
pspell 7.2.16
Reflection 7.2.16
session 7.2.16
SimpleXML 7.2.16
soap 7.2.16
sockets 7.2.16
SPL 7.2.16
sqlite3 7.2.16
standard 7.2.16
tidy 7.2.16
tip_wh 11
tokenizer 7.2.16
xml 7.2.16
xmlreader 7.2.16
xmlwriter 7.2.16
xsl 7.2.16
Zend OPcache 7.2.16
zip 1.15.4
zlib 7.2.16

Database
RDBMS MariaDBjessie
Server Version 5.5.5
Extension mysqli
Client Version 50012 (5.0.12)

If I look at the list provided by query then the extension tip_wh is causing this
I do not know what extension or core part this is.

Regards,

Hi John

Did you manage to find the root cause of this problem ?
Currently even with my fix in place I get the error again
[16-Jun-2019 07:40:03 UTC] PHP Notice: Uninitialized string offset: 0 in /www/wp-content/plugins/query-monitor/collectors/environment.php on line 257

I noticed in my access log the following
hospiceamandi.nl 2a01:4f8:141:332a::2 – – [16/Jun/2019:07:39:42 +0200] “GET /robots.txt HTTP/1.1” 301 243 “-” “Mozilla/5.0 (compatible; BLEXBot/1.0; +https://webmeup-crawler.com/)” 295 462
hospiceamandi.nl 2a01:4f8:141:332a::2 – – [16/Jun/2019:07:39:42 +0200] “GET /robots.txt HTTP/1.1” 200 289 “-” “Mozilla/5.0 (compatible; BLEXBot/1.0; +https://webmeup-crawler.com/)” 321 522
Could a call like this cause the problem ?
All versions of plugins are indicated correctly

Hi John

As I indicated before the extension tip_wh is causing the error.
This extension does not have a version !
If this extension is encountered the first part is empty
So we need to check if the part is empty or not
I have added this to your loop
foreach ( $parts as $part ) {
if (!empty($part)){
if ( is_numeric( $part[0] ) ) {
$version = $part;
break;
}
}
}

Now it is working without errors, for the extension it now reports the day indicated in the string