xdebug
I'm trying to reduce my script memory usage even more. I am trying to make my script generate output with xdebug to analyse the memory usage. It's a CLI based script has shebang
#!/usr/local/bin/php -q
I pass a parameter to it and check it with
$argc > 1 && is_numeric( $argv[1] )
When I login to ssh and do ./script.php 90
and add this code,
if( $argv[1] == 90 ) {
xdebug_start_trace('/var/www/html/logs/' . rand(1,9999999) );
}
I see the output file in the logs
folder.
But when I put the xdebug_start_trace
without the if
statement in production script, no output file is created.
The script.php
is called from another php file, placed in another folder, so I use absolute path in the filename and call it using exec
and append &> /dev/null &
to it, so it runs in the background.
This is driving me crazy! Help, guys!
Don't know why this occurred but I got an error
PHP Notice: Function trace already started in /var/www/html/script.php on line 9
[Check "Edit" for info]
Although, there is no code that triggers this xdebug_start_trace();
.
So I put xdebug_stop_trace();
before xdebug_start_trace();
, everything works fine.
Strange.
Edit: I was getting the above error as I had set auto_trace to On in php.ini
Also, turns out that if you are append &> /dev/null &
to the command, no xdebug log is generated. However, if I do &> /dev/null
(notice the last &
), xdebug generates logs. This is probably related to custom output xdebug must be using internally. Not sure, though.
You mean ...
if( $argv[1] == 90 ) {
xdebug_start_trace('/var/www/html/logs/' . rand(1,9999999) );
}
... leads to a trace-file and ...
xdebug_start_trace('/var/www/html/logs/' . rand(1,9999999) );
... just leaving out the condiional statement gives you none?
And well, I really cannot believe that the tracing starts out of no where ... so there has to be a function call somewhere. Given your description it seems like your setup is pretty messed up. So I don't think your problem is in any way related to XDebug, but this trace-phenomenon is just a random symptom you happend to notice.
Try to set up a scripting which is as simple as possible and still gives you this. Then post again what's going on, b/c your description is also pretty confusing IMHO.
Best
Raffael
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