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PHP搜索中的sql注入

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Release: 2016-06-06 19:49:46
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----------------------------------------------------------------------------------------- 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('%',

-----------------------------------------------------------------------------------------

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].'
';

    }

  }

}else{

  echo '******';

}

 

Link: http://www.cnblogs.com/farwish/p/3803811.html

@黑眼诗人 

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