php.ini quick reference

### Description

https://github.com/php/php-src/blob/master/php.ini-development#L89
https://github.com/php/php-src/blob/master/php.ini-production#L89

the php.ini quick reference should include

; session.sid_length
;   Default Value: 32
;   Development Value: 26
;   Production Value: 26

; zend.assertions
;   Default Value: 1
;   Development Value: 1
;   Production Value: -1
