hktm php filters dangerous html code

The following is the program code:

Copy the code The code is as follows:

function uhtml($str)
{
$farr = array(
"/s+/", //Filter excess blanks
//Filter <script> and other codes that may introduce malicious content or maliciously change the display layout. If you do not need to insert flash, etc., you can also add filtering of <object><BR>"/<(/?)(script|i?frame|style |html|body|title|link|meta|?|%)([^>]*?)>/isU", <BR>"/(<[^>]*)on[a-zA-Z ]+s*=([^>]*>)/isU",//Filter the on event of javascript <BR>); <BR>$tarr = array( <BR>" ", <BR>"＜123＞",//If you want Directly clear unsafe tags, you can leave them blank here <BR>"12", <BR>); <BR>$str = preg_replace( $farr,$tarr,$str); <BR>return $str; <BR>} <BR></script>

The above introduces hktm php filtering dangerous html code, including hktm content. I hope it will be helpful to friends who are interested in PHP tutorials.