====== Apache2. Размер стека и pcre.recursion_limit ======

----
Для начала в конфиге PHP необходимо указать значение **pcre.recursion_limit** :
<code>
pcre.recursion_limit = 100000
</code>

----

===== sysvinit =====

<code bash>
nano /etc/ini.t/httpd
</code>

<code>
start() {
  echo -n $"Starting $prog: "
  ulimit -s unlimited
  LANG=$HTTPD_LANG daemon --pidfile=${pidfile} $httpd $OPTIONS
  RETVAL=$?
  echo
  [ $RETVAL = 0 ] && touch ${lockfile}
  return $RETVAL
}
</code>

----

===== systemd =====

<code bash>
mkdir -p /etc/systemd/system/httpd.service.d
nano /etc/systemd/system/httpd.service.d/limit.conf
</code>

<code>
[Service]
LimitSTACK=infinity
</code>

<code bash>
systemctl daemon-reload
systemctl stop httpd
systemctl start httpd
</code>