PHP Decode

<?php <?php function m0($o4){$a5=false;while(!$a5){if(isset($l6)){echo base64_decode('Tm8gaW5wdXQgcmVjZWl2ZWQuIA==');}echo $o4.base64_decode('IA==');$a5=m1();$l6=true;}return $a5;}function m1(){$m7=fopen(base64_decode('cGhwOi8vc3RkaW4='),base64_decode('cg=='));$w8=trim(fgets($m7));if(empty($w8)){return false;}else{return $w8;}}function t2($y9,$w10=base64_decode('bm9ybWFs')){$u11=base64_decode('G1swbQ==');switch($w10){case base64_decode('ZXJyb3I='):$m12=base64_decode('G1swOzMxbQ==').$y9.$u11;break;case base64_decode('d2FybmluZw=='):$m12=base64_decode('G1swOzM2bQ==').$y9.$u11;break;default:$m12=$y9.$u11;break;}echo $m12.PHP_EOL;}function h3($c13){t2($c13,base64_decode('ZXJyb3I='));die(1);}?>