Snippets

Home / Snippets / HTML Entitize any string

HTML Entitize any string

Snippet Menu

snippet |

revisions |

comments | Related Snippets

related |

Add to Favorites | Email

download | Print

print | Blog It

blog it

Wed. Aug. 30th, 2006 5:06 AM

1 of 1

dohpaz

entities | HTML | PHP

2 comments

This function is useful in helping to deter spam bots by obfuscating things such as e-mail addresses and URLs that are displayed on a web page. While it's not 100% fool proof, it does offer some protection.

Example:
$email = html_entitize('foo@baz.org');
/*
Outputs foo@baz.com
*/

function html_entitize($string) {

    $encoded = null;

    for ($i = 0, $j = strlen($string); $i < $j; $i += 1) {

        switch (rand(0,1)) {

            case 0:

                $encoded .= sprintf('&#%s;', ord($string[$i]));

                break;

            case 1:

                $encoded .= sprintf('&#x%s;', dechex(ord($string[$i])));

                break;

        }

    }

    return $encoded;

}