+ Debugging Tools For Horde 4
++ Horde::debug() [http://lists.horde.org/archives/dev/Week-of-Mon-20110321/025987.html]
To easily debug the value of a variable in Horde PHP code, Horde::debug() can be used. Usage:
<code type="php">
Horde::debug($variable);
</code>
{{$variable}} is the variable you wish to debug. The contents of this variable will be dumped into a file named {{horde_debug.txt}} in your temporary directory (generally set in {{horde/config/conf.php}} in the {{$conf['tmpdir']}} variable). ##red|$variable can NOT be debug_backtrace().##
If you want to manually specify the location of the debug file, you can use the optional second parameter to Horde::debug():
<code type="php">
Horde::debug($variable, $filename);
</code>
{{$filename}} should be the full path to the filename. If using {{$filename}}, make sure the directory/file is writable by the user the PHP process runs as.
It's worth noting that the output will also include a debug_backtrace(), so trying something like:
<code type="php">
Horde::debug(debug_backtrace());
</code>
will likely cause issues.