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An example of code to implement multi-process and multi-tasking in PHP

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Release： 2016-07-25 08:58:35

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/**
*Based on PHP5
*With the help of proc_open
* you can start multiple processes, you can use your imagination to do what you want
*If you are running php on Linux and enable the pcntl module, use the pcntl function. Better
*Last modified: by bbs.it-home.org 2013/6/20
**/
error_reporting(E_ALL);
set_time_limit(0);
class Thread {
protected $_pref; // process reference
protected static $_instance = null;
protected $_pipes;
private function __construct() {
$this->_pref = 0;
}
public static function getInstance($file) {
if (null == self::$_instance) {
self::$_instance = new self;
}
$descriptor = array(
0 => array("pipe", "r"),
1 => array("pipe", "w"),
2 => array("file", "./error-output.txt", "a"),
);
self::$_instance->_pref = proc_open("php -q $file", $descriptor, self::$_instance->_pipes);
return true;
}
public function __destruct() {
proc_close($this->_pref);
$this->_pref = null;
}
?>

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php实现多进程多任务的一例代码

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