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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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