Warning: mb_strstr()

[kmh]

i don't know what the definition of a bug is, but i have a big problem...

Yesterday I posted the following on another thread:

Today, I was uploading images and thought I understood the protocol but perhaps I should have been using some underscores where I hadn't. anyway, somewhere in all of this, i suddenly generated:

Warning: mb_strstr()

on http://www.animalvegetablemineral.net.au/shop/
i then deleted all of the photos uploaded - no luck
i then deleted all of the images files i had played with - no luck
i then uploaded my back up images file - no luck

i then, based on the error messages i was getting in both /shop/admin and the live shop, uploaded backups of my includes/functions files and my admin files - no luck

so, i have since, downloaded a new version of zen cart
http://www.animalvegetablemineral.net.au/order/ to see if i could identify what was wrong, and as you can see, this version also has a problem.

can anybody help?

I received the following response from chuckle:
quote
It is bug in PHP 5.2 to do with mb_str multibyte functions, allegedly fixed, but maybe not on your server?

A suggested fix is to add
php_flag mbstring.func_overload 0
to you .htaccess file.
unquote

the saga continues however, over night i deleted all the sql database from my cpanel. this morning i downloaded a new zen cart and then was able to ftp my custom folders over and all was looking good again.

BUT now, the same error messages are back this afternoon!!!

I am using zencart 1.3.7 the PHP on my cpanel is 5.2 and i personally am on an ibook (mac) connecting through the i'net on adsl broadband.

if anyone can explain (and preferrably in plain english as i am green) what i need to do to fix this problem i would appreciate it very much

[kmh]

more information of what i have done to try and resolve

per the tutorial posting on Warning: Headers already sent...

i have checked the syntax error and have got:

Warning: Cannot modify header information - headers already sent by (output started at /home/animalve/public_html/zencart/admin/includes/init_includes/init_file_db_names.php:20) in /home/animalve/public_html/zencart/admin/includes/init_includes/init_templates.php on line 36


/admin/includes/init_includes/init_file_db_names.php line 20 is

$request_type = (strtolower($_SERVER['HTTPS']) == 'on' || $_SERVER['HTTPS'] == '1' || strstr(strtoupper($_SERVER['HTTP_X_FORWARDED_BY']),'SSL') || strstr(strtoupper($_SERVER['HTTP_X_FORWARDED_HOST']),'SSL')) ? 'SSL' : 'NONSSL';
(// set the type of request (secure or not))

I have not installed SSL certificate to date as I am not collecting credit card details.

I have no idea why this is an issue all of a sudden.

I have also checked zencart/admin/includes/init_includes/init_templates.php on line 36 and deleted any spaces between the last code and the ?>

the URL i am now using is animalvegetablemineral.net.au/zencart

[kmh]

in case anyone ever experiences this, it was resolved by:
recognising that the php issue came from SSL look up (as per my previous)
I had not installed SSL as I was not collecting ccard info

however the credit card info under admin/configuration said i accepted visa and m/card (have changed that) and under admin/modules/payment i disabled any credit card options.

voila - it was working again. I don't understand why this happened now and not 3 weeks ago, but there you go. it appears to have been a problem.

why - i have no idea.

[kmh]

cannot believe it, but the problem has reappeared overnight!
it seems to have something to do with the product listing and css interaction but i have no idea really. it happens on some subcategories and not others...
i have no idea what to do.

[DrByte]

Something intermittent like that is likely a problem on your server.
You should be reporting the problem to your hosting company.

[kmh]

thank you SOOOOOOO much for responding

it has gone again (several hours later) although i did go through all of my items and ensure that they had a model number, and then went through all of my categories and made sure they all had product types assigned to them.

re hosting co. do i just send them the error message or something else?

thanks again,
k

[kuroi]

This may have become a problem because your host is trying to upgrade their servers to PHP 5.2 (I don't know that, I'm speculating). It may go away because they have problems and back it out. It may go away because they try again.

We can't advise you how best to approach your ISP, that's between you and them. But when you do contact them, I'd tell them about the warning message - a known bug in PHP 5.2 and explain to them the actions that you have already taken to implement Chuckl's recommended workaround, and how it didn't work in your hosted environment and ask what solutions or workarounds they would recommend or are planning.

I wouldn't complicate the conversation by getting into the headers already sent message, that's almost certainly a consequence of the earlier warning, which is the real problem to be resolved.