How do PHP releases match "API=yyyymmdd" signature/tag?
...The version control repository of PHP is the authoritative source on the correlation between PHP releases and their API date-versions. Keep in mind that only major releases of PHP (e.g. 7.4) have a unique date-version. new & improved (for the lazy and irresponsible)...
https://stackoverflow.com/questions/22050098/how-do-php-releases-match-api-yyyymmdd-signature-tag
PHP 4.4: List Releases, Release Date, End of Life - VersionLog
...List all releases of PHP in branch 4.4, support status, release date of each release in branch 4.4. PHP is an open-source scripting language that is pop......
https://versionlog.com/php/4.4/
PHP: Predefined Constants - Manual
...These constants are defined by the PHP core. This includes PHP, the Zend engine, and SAPI modules. The current PHP version as a string in "major.minor.release [extra]" notation. The current PHP "major" version as an integer (e.g., int (5) from version "5.2.7-extra")....
https://www.php.net/manual/en/reserved.constants.php
PHP.Watch API for PHP Versions, Usage, RFC, and Changes
...PHP.Watch provides up to date and manually verified information on PHP versions, releases and download links, changes in PHP version, RFCs, PHP version statistics, PHP symbols, and more via a free JSON API....
https://php.watch/api
web-php/ChangeLog-4.php at master · php/web-php · GitHub
...It didn't work in PHP 4.0.0 either, but now it's gone for good (Zeev)
https://github.com/php/web-php/blob/master/ChangeLog-4.php
...Basing on Antony D'Andrea link I've modified slightly phpinfo_array function so you can use it like phpinfo_array("Build Date"); I've also created phpdate ($format) function that handles it....
https://stackoverflow.com/questions/28250415/php-get-current-php-version-release-date
phpinfo - OnlinePHP.io Example
...phpinfo is also a valuable debugging tool as it contains all EGPCS (Environment, GET, POST, Cookie, Server) data. The output may be customized by passing one or more of the following constants bitwise values summed together in the optional flags parameter....
https://onlinephp.io/phpinfo/manual