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<?php $input = array( array( 'tag_name' => array('google', 'Yahoo') ), array( 'tag_name' => array('technology', 'andsuch') ) ); print_r(array_map(function ($entry) { return $entry['tag_name']; }, $input));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => google [1] => Yahoo ) [1] => Array ( [0] => technology [1] => andsuch ) )

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