php 防注入攻击函数
/*php 防注入函数
string $feifa 限制元素组成
如有非法字符跳转到上一页 返回 0 没有返回 1
*/
//使用方法
//$feifa=array("select","delete","from","update","create","destory","drop","alter","and","or","like","exec","count","*","chr","mid","master","truncate","char","declare",";","-","+");
//$arrpostget=array("http://www.baidu.select cretecomdmin","wangw");
//echo saftsql($feifa,$arrpostget);
function saftsql($feifa,$arrpostget){
//
$arrpostget=array_merge((array)$HTTP_PSOT_VARS,(array)$HTTP_GET_VARS);
if($arrpostget){
foreach($arrpostget as $key=>$value){
for($i=0;$i<count($feifa);$i++){
//找非法字符在$value中的位置
$flag=strpos($value,$feifa[$i]);
if($flag)
{
echo "<script
type=\"text/javascript\">alert('URL有非法字符');</script>";
相关文档：
<?php
function outputMyName($fname) {
echo "我的名字叫 ";
echo "周 ".$fname."<br />";
}
?>
<html>
<body>
<?php
outputMyName("胜超");
outputMyName("宇恒");
outputMyName("宇盟");
?>
</body>
</html>
结果如下� ......
数据库中查询到以下的结果：
cname linename minute
aa c1 & ......
最近想安装PEAR(PHP Extension and Application Repository),但是在执行批处理文件go-pear.bat的时候出现了错误：
phar "C:\php\PEAR\go-pear.phar" does not have a signature
PHP Warning: require_once(phar://go-pear.phar/index.php): failed to open stream: phar error: ......
<?
@session_start();
$counter = intval(file_get_contents("counter.dat"));
if(!$_SESSION['jingyun'])
{
$_SESSION['jingyun'] = true;
$counter++;
$fp = fopen("counter.dat","w");
fwrite($fp, $counter);
fclose($fp);
}
?>
总访问 <span style="font-size:14px; color:#FF6600" mce_sty ......
头部调用
<?
require('conn.php');
$sql1="select id from news";
$query1=mysql_query($sql1,$conn);
$sun_num=mysql_num_rows($query1);
$gs=20;
$page_num=ceil($sun_num/$gs);
include("../subpage.php");
//传过来的页数参数
$PB_page=$_GET['PB_page'];
if ($PB_page==1 or empty($PB_page)){
$ ......
