Smarty

[dmitryg]

I have been asked to check a website that uses Smarty which stopped working, after working ok for years.

I updated Smarty to be newest Smarty 2 version, but error persists. Site now using 2.6.28 .

The problem is in /admin section of a site.

The page displays a template home, which in turn includes template main.tpl, which in turn includes template display_tools.tpl . The script dies without error at top of this display_tools.tpl.

The first line of the template reads:

include_once(SMARTY_CORE_DIR . 'core.load_plugins.php');

That's where it dies. It is very strange. If I comment out this line in the compiled template, for testing, then it dies in the next line smarty_core_load_plugins(...)

When I say it dies, it is not that I see a blank page or an error message. There is nothing. The browser reports it received no data. So it is as if for some reason, the Apache process itself dies.

My thinking is that something is exceeding php configuration settings. But what could it be? I already solved issue with public pages, thanks to U.Tews, who instructed to change setting pcre.backtrack_limit to -1, because on public pages, the script was dying when running a preg_match call on a very long regular expression. I thought that might solve all issues but no, the issue on these admin pages persists.

Could it be too many variables created or something? I tried get_included_files() before the require_once that fails, and it tells me there are 87 included files.

This is very puzzling. Thank you for any help.

[U.Tews]

Does your script define constant SMARTY_CORE_DIR?
Normally it should not be necessary to define it. But if defined it must point to the libs/internals/ folder of the Smarty distribution.

[dmitryg]

Hi U.Tews, thanks for replying.

Yes the constant is defined and points to internals folder.

There is home.tpl, which includes at some point main.tpl, which at some point includes display_tools.tpl and all of them have this same require_once line. It works on the first two, it causes Apache crash on display_tools.

-Dmitry

[U.Tews]

What happens if you remove the definition of SMARTY_CORE_DIR?

Could be perhaps also too low PHP memory_limit....

[dmitryg]

I already added ini_set('memory_limit','64M') and nothing changed.

I just fixed it. I restarted server, since behavior was so weird. And after restarting, it worked ok.

Thank you.