function rtprocess($commands = array()){
    ini_set('zlib.output_compression', 0);
    ini_set('implicit_flush', 1);
    ob_implicit_flush(1);
 
    $pipes = [];
    $processes = [];
    $output = [];
    foreach($commands as $key => $command){
        $descriptorspec[$key] = array(
            0 => array('pipe', 'r'),
            1 => array('pipe', 'w'),
            2 => array('pipe', 'w')
        );
        $processes[] = proc_open($command, $descriptorspec[$key], $procPipes);
        stream_set_blocking($procPipes[1], 0);
        $pipes[$key] = $procPipes;
        $output[$key] = '';
    }
 
    echo '<pre>';
    do{
        $allFinished = true;
        foreach($processes as $key => $process){
            $returnedValues = proc_get_status($process);
            if($returnedValues['running']){
                $allFinished = false;
                $s = fread($pipes[$key][1],1024);
                if($s){
                    $output[$key] .= $s;
                    print($s);
                    ob_flush();
                    flush();
                }
 
            }
        }
    } while($allFinished == false);
    echo '</pre>';
 
    foreach($processes as $process){
        proc_close($process);
    }
 
    foreach($output as $o){
        echo '<pre>'.print_r($o,true).'</pre>';
    }
}
 
$commands = array();
$commands[] = "ping -n 5 127.0.0.1 2>&1";
$commands[] = "ping -n 5 10.0.0.1 2>&1";
//rtprocess($commands);

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