Php completely filters HTML, JS, CSS, and other labels _ PHP Tutorial

Php completely filters HTML, JS, CSS, and other labels. Remember to write an article in the past that filters html tags, js code, and css style tags effectively in php: Copy the code as follows :? Php $ strpreg_replace (@ script (.*?) Script @ is, $ str); $ str remember to write an article before
Php effectively filters html tags, js code, and css style tags:

The code is as follows:

$ Str = preg_replace ("@ $ Str = preg_replace ("@ is", "", $ str );
$ Str = preg_replace ("@ @ Is "," ", $ str );
$ Str = preg_replace ("@ <(. *?)> @ Is "," ", $ str );
?>

All are regular expressions used to filter HTML tags, but they are useless today. why ?? The tag is Escaped. for example
. This is displayed on the page. However, the source file is displayed as follows: "-- but we can still process it. first decompile all the content and then filter it out.

The code is as follows:

$ Str = htmlspecialchars_decode ($ str );

To use the htmlspecialchars_decode function, convert the source file to a tag like <>. then ":

The code is as follows:

$ Str = preg_replace ("/<(. *?)> /"," ", $ Str );

Php effectively filters html tags, js code, and css style tags: the code is as follows :? Php $ str = preg_replace ("@ script (.*?) /Script @ is "," ", $ str); $ str...