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<?php $current_url = 'current.sub.meh.com'; $stage_url = 'foo.stage.it'; $current_domains = explode( '.', $current_url ); $current_sub_domain = array_slice( $current_domains, 0, count( $current_domains ) - 2 ); $stage_top_domain = array_slice( explode( '.', $stage_url ), - 2, 2 ); $stage_url = implode( '.', array_merge( $current_sub_domain, $stage_top_domain ) ); echo $stage_url;
Output for git.master, git.master_jit, rfc.property-hooks
current.sub.stage.it

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