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File: example/downloader.php

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  Classes of Robert Young  >  PHP Multiplexed I/O  >  example/downloader.php  >  Download  
File: example/downloader.php
Role: Example script
Content type: text/plain
Description: Example of downloading multiple files
Class: PHP Multiplexed I/O
Manage multiple simultaneous network connections
Author: By
Last change:
Date: 8 years ago
Size: 1,508 bytes
 

Contents

Class file image Download
<?php
require 'MIO/Selector.php';
require
'MIO/SelectionKey.php';
require
'MIO/Stream.php';
require
'MIO/StreamFactory.php';
require
'MIO/Exception.php';

$urls = array(
   
'http://uk.php.net/get/php-5.2.1.tar.bz2/from/this/mirror' => 'php.tar.bz2',
   
'http://dev.mysql.com/get/Downloads/MySQL-5.1/mysql-5.1.15-beta-linux-i686-glibc23.tar.gz/from/http://mirrors.dedipower.com/www.mysql.com/' => 'mysql.tar.gz',
   
'http://www.mirrorservice.org/sites/ftp.apache.org/httpd/httpd-2.2.4.tar.bz2' => 'apache.tar.bz2'
);

$selector = new MioSelector();
$streams = new MioStreamFactory();

foreach(
$urls as $url => $file ) {
   
// I suppose I should really have a buffer in between them
    // but I think I can be pretty sure the network is going to
    // be slower than the filesystem.
   
$selector->register(
       
$streams->createFileStream( $url, 'r' ),
       
MioSelectionKey::OP_READ,
       
$streams->createFileStream( $file, 'w+' )
    );
}

echo
"\n";
for(
$i=1; ; $i++ ) {
    while( !
$count = $selector->select( 100000 ) ) {
        if(
$count === false ) {
           
$selector->close();
            break
2;
        }
    }

    foreach(
$selector->selected_keys as $key ) {
        if(
$key->isReadable() ) {
           
$key->attachment->write(
               
$key->stream->read( 16384 )
            );
        } else {
            echo
"Que!\n";
        }
    }
    echo
"\r";
    foreach(
$urls as $file ) {
        echo
$file . ' (' . filesize( $file ) . ') ';
    }
}
echo
"\n";