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<?php $array1 = array(1=>"Band",2=>"Song", 3=>"Release",4=>"Year"); $array2 = array(1=>"Band"); $array1[key($array1)] = preg_replace("~^\xef\xbb\xbf~u","",$array1[key($array1)]); var_dump(array_intersect($array1,$array2));

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