[FFmpeg-user] Calling FFmpeg from PHP: How to set logfile? (report)

[Reindl Harald]

Am 27.07.19 um 22:19 schrieb Peter B.:
> Thanks for your replies! :)
> 
> On 27/07/2019 21:18, Reindl Harald wrote:
>>> https://www.php.net/manual/en/function.putenv.php 
>> but how does it matter anyways?
> 
> Sure I found putenv before, but as I said: It felt a bit unnecessarily
> complicated ("overkill"), so I thought I'd better ask.

what is complicated when it comes to environment variables?

what do you gain from millions of options  compare dto follow standards?

>> you are supposed to use things like
>> https://www.php.net/manual/en/function.exec.php when you execute
>> binaries like ffmpeg
> 
> I know. That's what I'm doing.
> btw: The PHP article in the wiki only mentions "shell_exec()" - and no
> means of evaluating any exitcode to see if the FFmpeg call was
> successful or not. So I found "exec()" to actually be the better option
> (for me?)
> 
> So I'm now doing the following and it seems to work quite well:
> 
> 1) Add "2>$logfile" at the end of the command to redirect stderr to file.
> 2) Use "exec($command, $output, $exitcode)" - and then check if
> ($exitcode != 0).
> 
> Seems to work quite well!

that's how unix systems are supposd to work, no matter if the cvaller is
PHP or whatever binary or scripting language