preg_match_all $flags default value is unclear

From manual page: https://php.net/function.preg-match-all

Hi, just a small thing, the Description section says that int $flags = 0,, but the Parameters section describing flags says at the end that:

If no order flag is given, PREG_PATTERN_ORDER is assumed.

The numeric value of PREG_PATTERN_ORDER is 1, the source says $flags = 0 at
https://github.com/php/php-src/blob/master/ext/pcre/php_pcre.stub.php#L105

function preg_match_all(string $pattern, string $subject, &$matches = null, int $flags = 0, int $offset = 0): int|false {}

Maybe they could be made consistent, even lying a bit in the docs by saying $flags = PREG_PATTERN_ORDER?

Compare the preg_match_all manual page's Description and Parameters sections with the referenced ext/pcre/php_pcre.stub.php definition. Decide on wording that clearly explains the default flags behavior, update the documentation, and verify that the signature and parameter description are consistent.