ini_set max_input_time php code example

Example: php max_input_time

A quick look into the php.ini file will show you:

; Maximum amount of time each script may spend parsing request data. It's a good
; idea to limit this time on productions servers in order to eliminate unexpectedly
; long running scripts.
; Note: This directive is hardcoded to -1 for the CLI SAPI
; Default Value: -1 (Unlimited)
; Development Value: 60 (60 seconds)
; Production Value: 60 (60 seconds)
; http://php.net/max-input-time
max_input_time=60
So as you already guessed correct:

; Default Value: -1 (Unlimited)
               //^^^^^^^^^^^^^^
You can see the php.ini files for production and development on github:

php.ini file for production
php.ini file for development