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Title : These PHP Classes Check if a host is alive using various methods.
Categories : PHP, PHP Classes, Sockets, CURL
Víctor Román Archidona
Date : Jul 09th 2007
Grade : 3 of 5 (graded 7 times)
Viewed : 6416
File : 4669.zip
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Shows how to implement an extensible class. This implementation has working functions to check if we can connect to a host using the base class CheckHost and plugs another function (method curl) with CheckHostCurl class which extends the first one. Also will be used as a callback example.


Usage Example
<?php
require_once "checkhost.class.php";
require_once
"checkhost_curl.class.php";

$hosts = array("www.google.com",
               
"www.yahoo.es",
               
"noexists.tld");

echo
"Using method: fsockopen\n\n";
foreach (
$hosts as $host) {
   
$ch = new CheckHost($host, 80, "fsockopen");
    echo
"Connection to $host: ".($ch->Check() ? "OK" : "FAILED")."\n";
}

echo
"\nUsing Method: sockets\n\n";
foreach (
$hosts as $host) {
   
$ch = new CheckHost($host, 80, "sockets");
    echo
"Connection to $host: ".($ch->Check() ? "OK" : "FAILED")."\n";
}

echo
"\nUsing Method: curl (it ignores the port parameter)\n\n";
foreach (
$hosts as $host) {
   
$ch = new CheckHostCurl($host, 80, "curl");
    echo
"Connection to $host: ".($ch->Check() ? "OK" : "FAILED")."\n";
}
?>



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