PHP Classes

File: examples/demo.timeout.php

Recommend this page to a friend!
  Classes of Daniel Martinez  >  Forker PHP  >  examples/demo.timeout.php  >  Download  
File: examples/demo.timeout.php
Role: Example script
Content type: text/plain
Description: Example script
Class: Forker PHP
Split tasks into multiple forked processes
Author: By
Last change: Update of examples/demo.timeout.php
Date: 10 months ago
Size: 1,485 bytes
 

Contents

Class file image Download
<?php
/**************************************************
 * [Forker]
 *
 * Example: Retrieving the city-weather using external api
 * IT Shows how the timeout system works
 *
 * Usage : php examples/demo.timeout.php
 * Storage: Memcache
 **************************************************/

require 'vendor/autoload.php';

use
Forker\Forker;
use
Forker\Storage\MemcacheStorage;

$allCitiesWeather = "";

$urlApiWeather = "http://api.openweathermap.org/data/2.5/weather?q=%s&mode=xml";

$myTasks = array(
   
'madrid' => sprintf($urlApiWeather, 'Madrid'),
   
'london' => sprintf($urlApiWeather, 'London'),
   
'new-york' => sprintf($urlApiWeather, 'NewYork'),
   
'barcelona' => sprintf($urlApiWeather, 'barcelona'),
   
'lisboa' => sprintf($urlApiWeather, 'lisboa'),
   
'iasi' => sprintf($urlApiWeather, 'iasi'),
);

// a way to keep our data
$storageSystem = new MemcacheStorage;
$numberOfSubTasks = 6;
$timeout = 2;

$forker = new Forker($storageSystem, $myTasks, $numberOfSubTasks);

$time_start = microtime(true);

$forker->timeOut($timeout)->fork(function($city, $url, $emit) {

    if (
$city == 'madrid') {
        echo
"I'll stay in {$city} for a while..";
       
sleep(10);
    }
    echo
"Retrieving weather in $city\n";

   
$contents = file_get_contents($url);
   
$emit($city, $contents);
});

$allCitiesWeather = $forker->fetch();

$time_end = microtime(true);
$time = $time_end - $time_start;

echo
"it took {$time} seconds in parallel \n";



For more information send a message to info at phpclasses dot org.