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 Topic: Retrieving Apache command line output |
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| Author |
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Otomatic
Joined: 01 Sep 2011
Posts: 212
Location: Paris, France, EU
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 Posted: Mon 01 Nov '21 18:49 Post subject: Retrieving Apache command line output |
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Hi,
With the PHP script below, there is no problem retrieving the results from Apache on the command line:
| Code: |
$command = 'CMD /D /C '.$c_apacheExe.' -t -D DUMP_VHOSTS';
ob_start();
passthru($command);
$output = ob_get_contents();
ob_end_clean();
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This works very well for other commands like:
| Code: |
$command = 'CMD /D /C '.$c_apacheExe.' -t -D DUMP_MODULES';
$command = 'CMD /D /C '.$c_apacheExe.' -t -D DUMP_INCLUDES';
$command = 'CMD /D /C '.$c_apacheExe.' -t -D DUMP_RUN_CFG';
and so on...
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But, strangely, it doesn't work for the command:
| Code: | | $command = 'CMD /D /C '.$c_apacheExe.' -t'; |
that run syntax check for config files whether without errors (Syntax OK) or with errors, the result ($output) is hopelessly empty.
After many tests, verifications, research, it appears that even without errors in the configuration files the result is always sent to STDERR and not to STDOUT.
In a Windows command window, STDOUT and STDERR are "mixed up", so you see everything.
So I had to find a way to retrieve "at the same time" the displays of STDOUT and STDERR by a procedure using proc_open().
I don't know if this is the best way, but it works!
| Code: |
$command = $c_apacheExe.' -t';
$descriptorspec = array(
0 => array('pipe', 'rb'), // stdin
1 => array('pipe', 'wb'), // stdout
2 => array('pipe', 'wb') // stderr
);
$process = proc_open(escapeshellarg($command), $descriptorspec, $pipes);
$output = '';
while (!feof($pipes[1])) {
foreach($pipes as $key => $pipe) {
$line = stream_get_line($pipe,0);
if($line !== false ) $output .= $line."\n";
}
}
fclose($pipes[0]);
fclose($pipes[1]);
fclose($pipes[2]);
proc_close($process);
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And in $output, there is either 'Syntax OK' or errors if there are any. |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7371
Location: Germany, Next to Hamburg
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| Posted: Wed 03 Nov '21 23:47 Post subject: |
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httpd -S runs all that check at once.
I wonder why you parse that? |
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Otomatic
Joined: 01 Sep 2011
Posts: 212
Location: Paris, France, EU
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