PHP搜索中的sql注入_PHP教程
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2022-05-13 20:07:36
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防止查询的sql攻击 => 对关键词进行过滤（代码局部）
------------------------@chenwei
$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].'
';
}
}
}else{
echo '******';
}
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