PHP Warning: strstr(): Empty needle in

[frank18]

$_SERVER['REMOTE_ADDR'] can be empty, which causes the error

I think you can suppress the error with @

case (@strstr(EXCLUDE_ADMIN_IP_FOR_MAINTENANCE, $_SERVER['REMOTE_ADDR'])):

or clarify the case condition

case (!empty($_SERVER['REMOTE_ADDR'])&&strstr(EXCLUDE_ADMIN_IP_FOR_MAINTENANCE, $_SERVER['REMOTE_ADDR'])):

Thanks - but suppressing the error is not much good to me, I would like to know the reason for this error.

[Design75]

Thanks - but suppressing the error is not much good to me, I would like to know the reason for this error.

You probably have no value set for you admin ip under configuration->maintenance

[frank18]

You probably have no value set for you admin ip under configuration->maintenance

Yes, an IP is set, the field is not empty

[RodG]

You probably have no value set for you admin ip under configuration->maintenance

Nah, it wouldn't be that. The error message is "PHP Warning: strstr(): Empty needle", which means that it's the $_SERVER['REMOTE_ADDR'] variable being set.

Why it's not being set is something I can't answer, but as SignTorch suggested, suppressing the error is probably the easiest 'fix'.

Cheers
RodG

[RodG]

Addendum:

That should have read:

It's the$_SERVER['REMOTE_ADDR'] variable NOT being set.

Cheers
RodG

ps. Does anyone else experience lockups when trying to edit a post or is it just me? Doesn't happen all the time, but often enough that its become a real headache.

[Design75]

Nah, it wouldn't be that. The error message is "PHP Warning: strstr(): Empty needle", which means that it's the $_SERVER['REMOTE_ADDR'] variable being set.

Duh , I guess i needed more coffee this morning

[frank18]

Why it's not being set is something I can't answer, but as SignTorch suggested, suppressing the error is probably the easiest 'fix'.

Cheers
RodG

Yeah, I guess so - BUT the question still remains: why is the error happening, is it a bug in the coding -- or what??

[frank18]

Searching the forums I found another thread covering the same issue with a ZC 1.5.3 version:

https://www.zen-cart.com/showthread....iles-yesterday

[DrByte]

Are you able to trigger it on-demand? That would be helpful for proper resolution.

Could possibly be caused by IP address spoofing, or malicious manipulation by the visitor to mask their address such that the $_SERVER array doesn't have a value there, or perhaps crafty DNS registration which reports invalid data.
Or a weird proxy server configuraiton if you're using one.

[frank18]

Are you able to trigger it on-demand? That would be helpful for proper resolution.

Could possibly be caused by IP address spoofing, or malicious manipulation by the visitor to mask their address such that the $_SERVER array doesn't have a value there, or perhaps crafty DNS registration which reports invalid data.
Or a weird proxy server configuraiton if you're using one.

Thanks

Can't trigger it on demand but found the corresponding server log entry for this error:

[28-Jan-2015 19:55:58 UTC] PHP Warning: strstr(): Empty needle in /home/sunnsand/public_html/includes/functions/functions_lookups.php on line 712

Log entry (adusted for server/UTC time difference):

78.129.250.17 - - [29/Jan/2015:06:55:58 +1100] "GET /index.php?main_page=index&cPath=13_15_23 HTTP/1.1" 200 11389 "-" "Mozilla/5.0 (compatible; aiHitBot/2.9; +http://www.aihitdata.com/about)"

As far as I know my server is not using a weird proxy server configuration.


I am frequently checking the logs of all (virtual) servers and have never seen this particular error before with any of the hosted ZC sites - this is a first in 5 years with the same host.


And - all sites are residing on the same physical server.