PHP: extract name from string

I have a path that look开发者_如何学JAVAs like:

/home/duke/aa/servers/**servername**/var/...morefiles...

With php, I want to extract the "servername" from the path

Unfortunately I'm not that well versed with php but I came up with something that used strstr() but I am only using PHP version 5.2 where as one of the parameter functions require 5.3

What could be some code that would return "servername"?

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you can use explode('/', $path) to break it down into the individual directories. After that, it's up to you to figure out which array element is the server name (with your sample path, it'd be #4):

$parts = explode('/', $path);
echo $parts[4]; // **servername**

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function getServerName($data) {
    preg_match('#/servers/(.+)/var/#', $data, $result);
    if (isset($result[1]) {
        return $result[1];
    }
}

$data = '/home/duke/aa/servers/**servername**/var/...morefiles...';
echo getServerName($data);

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$str = '/home/duke/aa/servers/**servername**/var/...morefiles...';

echo preg_replace('$(.+)/servers/(.+)/var/(.+)$', '\2', $str);