[g37752]

in wordpress php code, something like
function fn(){
....
echo ' value = '.$variable;
...
}

sometimes, the echo shows, sometimes it doesn't, which i guess depending on where the code is.

how can I standard out a variable value? or where can I find my standard out?

thanks

[Atli]

Anything you echo from PHP is sent to the output buffer and, unless intercepted, is sent to the browser, or the CLI stdout stream if executed via a CLI. You can intercept any output by using the Output Control functions. (This can be set to be enabled by default, via the output_buffering ini directive.)

In a CLI script, you can use the same streams you would use in most other languages. PHP defines them for you as constants: STDIN, STDOUT, STDERR. Read more about that here:
http://php.net/manua....io-streams.php

[g37752]

i put
ob_end_flush();
right before the echo statement, and still gets nothing?

[Atli]

Are you sure the code is actually executing that function? Do you have error reporting enabled?

You wouldn't happen to have a debugger set up, so you can set breakpoints?