PHP FILTER_SANITIZE_SPECIAL_CHARS Filter

PHP Filter Information

Definition and Usage

The FILTER_SANITIZE_SPECIAL_CHARS filter escapes special characters.

This filter is used to escape "<>&" and ASCII values below 32.

  • Name: "special_chars"
  • ID-number: 515

Possible Flags:

  • FILTER_FLAG_STRIP_LOW - Remove ASCII values below 32
  • FILTER_FLAG_STRIP_HIGH - Remove ASCII values above 32
  • FILTER_FLAG_ENCODE_HIGH - Encode ASCII values above 32

Examples

<?php

var_dump(filter_var($url,FILTER_SANITIZE_SPECIAL_CHARS));
?>

Output:

string(37) "Is Peter <smart> & funny?"

If you view the source code in your browser, you will see the following HTML:

string(37) "Is Peter <smart> & funny?"

PHP Filter Information