锟杰讹拷 PHP 锟斤拷锟斤拷锟斤拷锟斤拷锟节碉拷锟截达拷锟斤拷锟姐并锟斤拷锟斤拷 PHP 锟斤拷锟皆憋拷锟斤拷锟斤拷锟斤拷猓拷锟斤拷潜锟斤拷锟竭的帮拷全锟斤拷识锟斤拷锟竭讹拷锟斤拷锟铰的★拷锟斤拷耍锟斤拷锟斤拷锟绞笔弊拷锟矫恳伙拷未锟斤拷锟斤拷锟杰达拷锟节碉拷锟斤拷锟解，去锟斤拷锟街凤拷锟斤拷确锟斤拷锟斤拷锟结交时锟斤拷锟斤拷锟斤拷傻锟接帮拷臁�
Example #1 危锟秸的憋拷锟斤拷锟矫凤拷
<?php
// 锟斤拷锟矫伙拷目录锟斤拷删锟斤拷一锟斤拷锟侥硷拷锟斤拷锟斤拷锟斤拷......锟斤拷删锟斤拷锟斤拷锟斤拷亩锟斤拷锟斤拷锟�
unlink ($evil_var);
// 锟斤拷录锟矫伙拷锟侥碉拷陆锟斤拷锟斤拷锟斤拷......锟杰凤拷锟斤拷 /etc/passwd 锟斤拷锟斤拷锟斤拷荩锟�
fwrite ($fp, $evil_var);
// 执锟斤拷一些锟斤拷通锟斤拷锟斤拷锟筋，锟斤拷锟斤拷......锟斤拷锟斤拷执锟斤拷 rm -rf * 锟斤拷
system ($evil_var);
exec ($evil_var);
?>
锟斤拷锟斤拷时锟斤拷锟斤拷锟斤拷锟斤拷拇锟斤拷耄拷锟饺凤拷锟矫恳伙拷锟斤拷涌突锟斤拷锟斤拷峤伙拷谋锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷实锟斤拷募锟介，然锟斤拷锟斤拷锟皆硷拷锟斤拷锟斤拷一些锟斤拷锟解：
锟斤拷锟斤拷锟皆匡拷锟角关憋拷 register_globals锟斤拷magic_quotes 锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷谈锟斤拷锟斤拷愕拷锟绞鼓筹拷锟斤拷锟斤拷锟斤拷暮戏锟斤拷裕锟斤拷锟皆达拷锟斤拷锟街碉拷锟斤拷锟斤拷业锟斤拷锟斤拷谩锟斤拷诳锟斤拷锟绞憋拷锟斤拷锟斤拷锟绞癸拷锟� error_reporting(E_ALL) 模式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷前锟角凤拷锟叫憋拷锟斤拷锟津被筹拷始锟斤拷锟斤拷锟斤拷锟斤拷锟酵匡拷锟皆凤拷止某些锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟捷碉拷锟斤拷锟斤拷锟剿★拷