public static function startDaemon(array $argv, $outputPath = null)
    {
        // This part purges the file descriptors of the daemon.
        // Caveat : it may contain "Bashisms", for example if a FD is >= 10.
        $fdPurge = implode(array_map(function ($fd) {
            return ' '.intval($fd).'>&-';
        }, IdentificationHelper::getMyFileDescriptors(false)));
        $command = implode(' ', array_map('escapeshellarg', $argv));
        system($command.' 0</dev/null 1'.(($outputPath !== null) ? ('>>'.escapeshellarg($outputPath)) : '>/dev/null').' 2>&1'.$fdPurge.' &');
    }
public static function startDaemon(array $argv, $outputPath = null)
    {
        // This part purges the file descriptors of the daemon.
        // Caveat : it may contain "Bashisms", for example if a FD is >= 10.
        $fdPurge = implode(array_map(function ($fd) {
            return ' '.intval($fd).'>&-';
        }, IdentificationHelper::getMyFileDescriptors(false)));
        $command = implode(' ', array_map('escapeshellarg', $argv));
        system($command.' 0</dev/null 1'.(($outputPath !== null) ? ('>>'.escapeshellarg($outputPath)) : '>/dev/null').' 2>&1'.$fdPurge.' &');
    }
@param array $argv
@param string|null $outputPath

@throws Exception\RuntimeException