fast cygwin mirror

fast_cygwin.php

<?php

foreach (file('http://cygwin.com/mirrors.lst') as $line) {
    echo $line;
    if (preg_match('%^\w+://([\w.-]+)/%', $line, $matches)) {
        $host = $matches[1];
        if (!isset($table[$host])) {
            $output = shell_exec("ping $matches[1]");
            echo $output;
            if (preg_match('/(\d+)ms/', $output, $matches)) {
                $table[$host] = $matches[1];
                error_log("$host\t$matches[1]\n",3,"mirrors_speed.log");
            }
            
        }
    }
}
asort($table);
print_r($table);

mirrors.ustc.edu.cn 56
ftp.kaist.ac.kr 94