//PHP整站防注入程序，需要在公共文件中require_once本文件 //判断magic_quotes_gpc状态 if (@get_magic_quotes_gpc ()) { $_GET = sec ( $_GET ); $_POST = sec ( $_POST ); $_COOKIE = sec ( $_COOKIE ); $_FILES = sec ( $_FILES ); } $_SERVER = sec ( $_SERVER ); function sec(&$array) { //如果是数组，遍历数组，递归调用 if (is_array ( $array )) { foreach ( $array as $k => $v ) { $array [$k] = sec ( $v ); } } else if (is_string ( $array )) { //使用addslashes函数来处理 $array = addslashes ( $array ); } else if (is_numeric ( $array )) { $array = intval ( $array ); } return $array; } //整型过滤函数 function num_check($id) { if (! $id) { die ( '参数不能为空！' ); } //是否为空的判断 else if (inject_check ( $id )) { die ( '非法参数' ); } //注入判断 else if (! is_numetic ( $id )) { die ( '非法参数' ); } //数字判断 $id = intval ( $id ); //整型化 return $id; } //字符过滤函数 function str_check($str) { if (inject_check ( $str )) { die ( '非法参数' ); } //注入判断 $str = htmlspecialchars ( $str ); //转换html return $str; } function search_check($str) { $str = str_replace ( "_", "\_", $str ); //把"_"过滤掉 $str = str_replace ( "%", "\%", $str ); //把"%"过滤掉 $str = htmlspecialchars ( $str ); //转换html return $str; } //表单过滤函数 function post_check($str, $min, $max) { if (isset ( $min ) && strlen ( $str ) < $min) { die ( '最少$min字节' ); } else if (isset ( $max ) && strlen ( $str ) > $max) { die ( '最多$max字节' ); } return stripslashes_array ( $str ); } //防注入函数 function inject_check($sql_str) { return eregi ( 'select|inert|update|delete|\'|\/\*|\*|\.\.\/|\.\/|UNION|into|load_file|outfile', $sql_str ); // 进行过滤，防注入 } function stripslashes_array(&$array) { if (is_array ( $array )) { foreach ( $array as $k => $v ) { $array [$k] = stripslashes_array ( $v ); } } else if (is_string ( $array )) { $array = stripslashes ( $array ); } return $array; } ?> 复制代码