increase limit 131072 characters `exec` command

[kocoten1992]

Description

exec(str_repeat('a', 131072));

Currently php exec command only accept up to 131071 characters, more will result in Warning: exec(): Unable to fork.

If possible I'd love to increase this to several millions...

[cmb69]

This is not a limitation of PHP, but rather of your shell. See e.g. https://serverfault.com/questions/163371/linux-command-line-character-limit.