本文实例讲述了简单实用的PHP防注入类。分享给大家供大家参考。具体如下：
PHP防注入注意要过滤的信息基本是get,post,然后对于sql就是我们常用的查询,插入等等sql命令了,下面我给各位整理两个简单的例子,希望这些例子能给你网站带来安全.
function __construct()
{
if (!emptyempty($_GET)) {
foreach ($_GET as $key => $val) {
if (is_numeric($val)) {
$this->get[$key] = $this->getInt($val);
} else {
$this->get[$key] = $this->getStr($val);
}
}
}
if (!emptyempty($_POST)) {
foreach ($_POST as $key => $val) {
if (is_numeric($val)) {
$this->post[$key] = $this->getInt($val);
} else {
$this->post[$key] = $this->getStr($val);
}
}
}
}
public function getInt($number)
{
return intval($number);
}
public function getStr($string)
{
if (!get_magic_quotes_gpc()) {
$string = addslashes($string);
}
return $string;
}
public function checkInject($string)
{
return eregi('select|insert|update|delete|/||../|./|union|into|load_file|outfile',$string);
}
public function verifyId($id = null)
{
if (!$id || $this->checkInject($id) || !is_numeric($id)) {
$id = false;
} else {
$id = intval($id);
}
return $id;
}
}
?>
例子二,代码如下:
<div class="codetitle"><a style="CURSOR: pointer" data="41271" class="copybut" id="copybut41271" onclick="doCopy('code41271')"> 代码如下:
