php 批量過濾非法字元

來源:互聯網
上載者:User

function testAddslashes($array) {
 if(!get_magic_quotes_gpc()) {
  if(is_array($array)) {
   foreach($array as $key => $val) {
    $array[$key] = testAddslashes($val);
   }
  } else {   
   $array = addslashes($array);
  }
  $array=str_replace("&#x","& # x",$array); //過濾一些不安全

字元s
  $array=str_replace("<","&lt;",$array); //過濾<
 }
 return $array;
}

if( $_POST)
{
 print_r( $_POST );
 echo '過濾前<hr /> ';
 $_POST = testAddslashes($_POST);
 echo '<hr />過濾後<br />';
 echo $_POST['textfield'];
 
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>無標題文檔</title>
</head>

<body>

<form action="" method="post" enctype="multipart/form-data" name="form1"

id="form1">
  <label>
  <input type="text" name="textfield" />
  </label>
  <p>
    <label>
    <input type="text" name="textfield2" />
    </label>
    <label></label>
  </p>
  <p>
    <label>
    <input type="submit" name="Submit" value="提交" />
    </label>
  </p>
</form>
</body>
</html>

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