I have PHP 5.3.4 and when I try to use debug_print_backtrace, I don’t get anything. When I use vardump, I get an empty array, as you can see below.
index.php:
<?php
define('WP_USE_THEMES', true);
require('./wp-blog-header.php');
var_dump(debug_backtrace());
echo PHP_VERSION;
?>
which returns
...
</html>
array(0) {
}
5.3.4
Can anyone tell me what is wrong? I am expecting to see everything that was called in the run. Instead I don’t see anything.
debug_backtrace() doesn’t show you what has been called so far but the current call stack (i.e. more or less where php would jump to on a
returnstatement until it reaches the top level) when the function is invoked.You might be interested in a profiler like e.g. the one implemented in XDebug plus something to analyse the data like e.g. kcachegrind.
If you’re really after Code Coverage (which it sounds like from your description) then XDebug is useful, or see the responses to this SO question