Question

I am trying to learn xdebug. I have the following script:

<?php

echo "This";

xdebug_start_trace('/home/dotancohen/xdebug');
echo "That";
xdebug_stop_trace();

?>

My /home/dotancohen/ directory is permissions 711 and the ~/xdebug file is permissions 777. However, the file is not being written to. There are no errors thrown in the PHP script, and it functions exactly as one would expect disregarding the xdebug lines.

Why might the file not be written to?

EDIT:
These are the xdebug configuration lines from php.ini:

extension=ssh2.so
;extension=xdebug.so
zend_extension="/usr/lib64/php/modules/xdebug.so"
extension=mongo.so
extension=memcache.so

Answer 1

It turns out that this line:

xdebug_start_trace('/home/dotancohen/xdebug');

Writes to this file:

/home/dotancohen/xdebug.xt

Therefore, touching ~/xdebug.xt and chmoding it to 777 resolved the issue.