need help with Multi-threaded script.

[ShivaGupta]

i found this script to run many php as same time.

<?php
/**
 * @author Multi-threaded script by Nicolas Iglesias
 * @copyright 2008
 */
require_once ("thread_class.php");
$pathToPhp = "/usr/bin/php";
$A = new Threader("$pathToPhp -f test.php",null, "a");

/**
 * First argument: external script or command (required).
 * Second argument: arguments that your external script or command will receive (optional).
 * Third argument: name of thread (optional).
 */
$B = new Threader("$pathToPhp -f test.php",null, "b");
$C = new Threader("$pathToPhp -f test.php",null, "c");
$D = new Threader("$pathToPhp -f test.php",null, "d");
$E = new Threader("$pathToPhp -f test.php",null, "e");
$F = new Threader("$pathToPhp -f test.php",null, "f");

/**
 * We check if any of the 'active' states of our threads are true;
 * then we display its output using 'listen'.
 */
while ($A->active || $B->active || $C->active || $D->active || $E->active || $F->
    active)
{
    echo "[Thread ".$A->threadName."] => " . $A->listen();
    echo "[Thread ".$B->threadName."] => " . $B->listen();
    echo "[Thread ".$C->threadName."] => " . $C->listen();
    echo "[Thread ".$D->threadName."] => " . $D->listen();
    echo "[Thread ".$E->threadName."] => " . $E->listen();
    echo "[Thread ".$F->threadName."] => " . $F->listen();
}
?>

<?php
/**
 * Threader
 *
 * @package Threader Class
 * @author Nicolas Iglesias - nfiglesias@gmail.com - cleversight.com
 * @copyright 2008
 * @version 1.0
 * @access public
 */
class Threader
{
    var $threadName = null;
    var $rid = null;
    var $error = null;
    var $pipes = array();
    var $active = false;

  /**
   * Threader::Threader()
   *
   * The constructor which opens the process.
   *
   * @param mixed $cmd - Execute a shell command
   * @param mixed $vars - Pass arguments to shell command
   * @param string $name - Identifies your thread (useful for debug)
   * @return void
   */
    function Threader($cmd = null, $vars = null, $name = null)
    {
        $descriptorspec = array(0 => array("pipe", "r"), 1 => array("pipe", "w"),
            2 => array("pipe", "w"));
        $pipes = array();
        if (!empty($cmd)):
        $this->threadName = $name;
        try
        {
            $this->rid = proc_open("$cmd $vars", $descriptorspec, $this->
                pipes, null, $_ENV);
            $this->active = true;
        }
        catch (exception $e)
        {
            $this->active = false;
            $this->error = $e->getMessage();
        }
        endif;
    }

  /**
   * Threader::listen()
   *
   * While $this->active == true, you can monitor a thread by calling this method.
   *
   * @return string - Will return the output of the running process
   */
    public function listen()
    {
        if (is_resource($this->rid) && !empty($this->pipes))
        {
            $stdout = (isset($this->pipes['1'])) ? $this->pipes['1'] : null;
            return fgets($stdout);
        }
        else
        {
            return null;
        }
    }

    function __destruct()
    {
        $this->active = false;
        if (is_resource($this->rid))
        proc_close($this->rid);
        if (!empty($this->error))
        echo $this->error;
    }
}
?>

but i dont understand this line in this script

$pathToPhp = "/usr/bin/php";
$A = new Threader("$pathToPhp -f test.php",null, "a");

can any one explain about $pathToPhp .

 

 

 

because script not working for me n i think something wrong with path.i am testing with linux web hosting..

 

so plz help me to shortout this .

Edited September 3, 2013 by ShivaGupta

[ShivaGupta]

anybody plz explain this code can run minium 5 php prosses in background ? also plz tell me is this path ($pathToPhp) releted to  php files    or php installtion diarectory?

[AbraCadaver]

//path to php executable

$pathToPhp = "/usr/bin/php";


//$pathToPhp means run PHP

//-f test.php means run that file

//null means options you send to your script, in this case none

//a is any name you give to this thread so you can reference it later

$A = new Threader("$pathToPhp -f test.php", null, "a");

 

[ShivaGupta]

//path to php executable
$pathToPhp = "/usr/bin/php";

//$pathToPhp means run PHP
//-f test.php means run that file
//null means options you send to your script, in this case none
//a is any name you give to this thread so you can reference it later
$A = new Threader("$pathToPhp -f test.php", null, "a");

ok thank  you sir i understand that but here i have another quection n need help again..............

 

 

 

1.How to get correct "$pathToPhp  of my linux hosting ?

2. and for file this code can work with only test.php  or need full path of file ? 

[jazzman1]

 

1.How to get correct "$pathToPhp  of my linux hosting ?

which php or whereis php

 

2. and for file this code can work with only test.php  or need full path of file ?

 

Yes, the script is written to run some other commands from test.php file. Make sure they are on the same directory.