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Why is a file handle opened in dispatcher.php not available inside view.php??

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On the off chance that someone here might be able to help me understand why something that should seemingly work under PHP does not when I try it inside C5 code...I would appreciate any insight anyone might have on the following.

I am trying to debug my way into a greater understanding of C5 code so that I can then implement add on's or what have you without breaking C5 (I am presently working on a static page caching mechanism to speed up first page loading which breaks the ability to login in to the C5 admin interface).

In line with that I added the following to dispatcher.php to begin with...

define('DEBUG', true);
if (defined('DEBUG')) {
   $handlez43 = fopen("debug_log.txt", "w");
}
fwrite($handlez43, "1\n");


No big deal really. Works as expected.

A file stream is opened up to debug_log.txt and the number 1 (followed by a newline) is written to the file.

When logging into C5 dispatcher.php shoots off to /concrete/libraries/view.php where I have put the following follow up code (most of which is irrelevant to why my file handle isn't working inside view.php but just in case I left it in)...

// per Carlos
xdebug_print_function_stack();
global $handlez43;
echo "<pre style='background-color: white;'>";
print_r(get_defined_vars());
echo "</pre>";
fwrite($handlez43, "/concrete/libraries/view.php: \$viewPath = $viewPath\n");
fwrite($handlez43, "2\n");
fclose($handlez43);


One would think that the second fwrite() to the filehandle $handlez43 would write out a "2" like a "1" was written out inside dispatcher.php. But only the "1" makes it into the file. The "2" is nowhere in sight!

A PHP warning is generated saying that the handle is not a proper resource.

But $handlez43 shows up as being in scope and present (i.e. defined) in the list of variables returned by get_defined_vars().

Beats me why my fwrite isn't working inside view.php.

Anybody got a clue?

If no one has any insight I'll just ask on a PHP forum but I figured I would ask here first in case anything related to C5 directly was causing the expected behavior to...well...not work.

The expected behavior being that I can write to the file inside view.php as well as I can write to the file inside dispatcher.php.

Any insight would be appreciated.

Thanks.

Carlos