php搜索中的sql注入-----------------------------------------------------------------------------------------
防止查询的sql攻击 => 对关键词进行过滤（代码局部）
$k = $_REQUEST['k'];
$k = addslashes($k);//转义:单引号，双引号，反斜线，NULL
$k = str_replace('%', '\%', $k);
$k = str_replace('_', '\_', $k);
$sql = "select * from users where name like '%$k%'";
if(!empty($k)){
$res = MySQL_query($sql, $con) or die(mysql_error());
if($row = mysql_fetch_assoc($res)){
foreach($row as $k=>$v){
echo $row[$k].':'.$row[$v].'<br />';
}
}
}else{
echo '******';
}
Link: http://www.cnblogs.com/farwish/p/3803811.html
@黑眼诗人<www.farwish.com>