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<?php $arr = array ( 1 => 'one', 2 => 'two', 3 => 'three', 4 => 'four' ); $comma_separated = implode(", ", $arr); echo preg_replace('/\,([^,]+)$/', ' and $1', $comma_separated);
Output for git.master, git.master_jit, rfc.property-hooks
one, two, three and four

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