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@ 2014-07-10T19:46:50Z

<?php

$roots = array('/www/dev/sites/www.fred-4.com',
'/www/dev/sites/www.fred-4.com-master');

foreach ($roots as $root) {

    $key = substr($root, strpos($root, '.com'), 0, 1);
	echo $root . " -> " . $key . PHP_EOL;

}

Output
Performance
VLD
References
Branches

substr: documentation ( source)
strpos: documentation ( source)

preferences:dark modelive preview

39.77 ms | 402 KiB | 5 Q