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<?php $array[0]['d'] = 'd1'; $array[0]['a'] = 'a1'; $array[1]['d'] = 'd2'; $array[1]['a'] = 'a2'; $array[2]['d'] = 'd3'; $array[2]['a'] = 'a3'; $array[3]['d'] = 'd1'; $array[3]['a'] = 'a1'; $keys = array_keys($array,"a"); print_r($keys); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Array ( )

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