filetype:php3

Meta: This isn't meant to imply that any of the sites in the results are actually still running PHP3 since Cool URIs Don't Change and they could be powered by pretty much anything. I just thought it was interesting to see which sites have some sort of lineage from software that old.

There's a roughly three-year period of time when it was most likely for sites to adopt a `.php3` URI scheme:

— 1998-06: First appearance of PHP 3.0 https://www.php.net/manual/en/history.php.php#history.php3

— 1999-01-04: Zend Engine (PHP 4) announced https://web.archive.org/web/19990421025151/http://www.zend.c... “Development on Zend will be completed in the first quarter of 1999, and a final release is expected on the second quarter that year.”

— 1999-10: First of several PHP4 public beta releases: https://web.archive.org/web/19991012225049/http://php.net/ve...

— 2000-05-22: PHP 4.0.0 https://web.archive.org/web/20000621094131/http://www.php.ne...

— 2000-10-20: Final PHP3 release, version 3.0.18 https://www.php.net/manual/php3.php

Compare mod_php (Apache) installation docs from before and from after the release of PHP 4:

https://web.archive.org/web/19990508133533/http://www.php.ne... sez “`AddType application/x-httpd-php3 .php3` — You can choose any extension you wish here. `.php3` is simply the one we suggest.”

https://web.archive.org/web/20001110084900/http://www.php.ne... sez “For PHP 3: `AddType application/x-httpd-php3 .php3`. For PHP 4: `AddType application/x-httpd-php .php`. — You can choose any extension you wish here. `.php` is simply the one we suggest. You can even include `.html`.”