Saving error "0"

My hosting company response:


Hello,

Thank you for your patience.

If status is a string, exit function prints the status just before exiting.
If status is an integer, that value will be used as the exit status and not printed. Exit statuses should be in the range 0 to 254, the exit status 255 is reserved by PHP and shall not be used. The status 0 is used to terminate the program successfully. Also, php version with 4.2.0 or higher does not print the status, if it is an integer. Hence, the functions exit; , exit(0); , or exit(); will terminate the program normally. If you want to terminate the program with an error code, you need to specify the value as either an octal or character strings.

If you have any further questions, please update Support Console.

Sincerely,

Syd Mosley
Level 3 Technical Support

Hi,

If you run a page with just this:

<?php exit; ?>

on your server, do you get a 0 printed on your screen?

Are you using firefox and if so, do you experience the problem in other browsers?

This is definitely a server issue as a script with no output should NOT output anything. The fact that it sends out a 0 string points to an incorrect server configuration. If they are not willing to fix this issue, you may want to consider moving hosts.

Hope this helps

using firefox and safari.. both get the "0"

What else could I tell them?

I sent them this origianlly:

This server is sending an incorrect response according to RFC 2616.

I set up a test page s2smedia.net/test.php
only thing on this page is <?php exit; ?>

The 0 displayed is not the PHP exit function's status code: it's what this server sends as content any time there is no content to be sent.

The server is sending a Content-Length of 0 and a message-body of "0", which is 1 byte long. This is contrary to the Content-Length of 0 it has sent. This is incorrect behaviour according to RFC 2616:

http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html

"When a Content-Length is given in a message where a message-body is allowed, its field value MUST exactly match the number of OCTETs in the message-body."

Browsers will try to ignore conflicting information, rather than displaying an error. It so happens that Firefox decides to ignore the Content-Length header while Internet Explorer decides to ignore the message-body.

Please update your servers to adhere to w3 standards as described here:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html
----------

They replied with this:

Thank you for your patience.

If status is a string, exit function prints the status just before exiting.
If status is an integer, that value will be used as the exit status and not printed. Exit statuses should be in the range 0 to 254, the exit status 255 is reserved by PHP and shall not be used. The status 0 is used to terminate the program successfully. Also, php version with 4.2.0 or higher does not print the status, if it is an integer. Hence, the functions exit; , exit(0); , or exit(); will terminate the program normally. If you want to terminate the program with an error code, you need to specify the value as either an octal or character strings.

If you have any further questions, please update Support Console.

Sincerely,

----------------------

Any idea on what I should reply with?

Hi,

They are referencing the php manual (http://ca3.php.net/exit), where they are saying that the function will output the value of $status if it's an integer or string. However, in our example (<?php exit; ?>) we are not giving exit a status variable, so nothing should be displayed

Also, CMS Builder requires PHP 4.3.2 or higher to run. According to the PHP manual, "PHP >= 4.2.0 does NOT print the status if it is an integer. " Therefore, you must be running above 4.2.0 and since 0 is an integer, it shouldn't be displayed. The issue should be the PHP function exit.

Hope this helps

Hope this helps

Just a followup on this for anyone with a similar issue. We had a similar bug report on another host.

I've attached a test script we provided to demonstrate the problem. If you upload it to the root of your website and send them a link it should give them an easy means to identify the problem.

Hope that helps!

i am a little confused.. I have multiple sites on the same server using CMS builder.. some of them get the error, some dont.

Could it be a CMS version issue?

Hi s2smedia, Is the host Ipower?

It definitely not a CMSB issue, and you can confirm that by running the simple test script on your different sites.

My guess is they have PHP configured slightly different for each site. They may have been rolling out a new version. My guess is they are using a wrapper script around PHP and it has a bug in it.

If all else fails, there are other solutions or workarounds we could look at, but for the most part we need PHP to work as expected on the server.

Let me know what you hear back.

Hi s2smedia,

We've added a work-around for this in the latest beta:
http://www.interactivetools.com/forum/gforum.cgi?post=91340