Document opcache.preload_user directive

Author: cmb69

NEWS

@@ -2,6 +2,9 @@ PHP                                                                        NEWS
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 ?? ??? ????, PHP 7.4.0RC2
 
+- Opcache:
+  . Add opcache.preload_user INI directive. (Dmitry)
+
 - PDO_MySQL:
   . Fixed bug #41997 (SP call yields additional empty result set). (cmb)
 

UPGRADING

@@ -652,6 +652,11 @@ PHP 7.4 UPGRADE NOTES
   . New INI directive to include or exclude arguments from stack traces
     generated for exceptions.
 
+- opcache.preload_user
+  . New INI directive to specifiy the user account under which preloading code
+    is executed, if it was to be run as root otherwise (which is not allowed
+    for security reasons).
+
 ========================================
 12. Windows Support
 ========================================

php.ini-development

@@ -1891,6 +1891,11 @@ ldap.max_links = -1
 ; http://php.net/opcache.preload
 ;opcache.preload=
 
+; Preloading code as root is not allowed for security reasons. This directive
+; facilitates to let the preloading to be run as another user.
+; http://php.net/opcache.preload_user
+;opcache.preload_user=
+
 ; Prevents caching files that are less than this number of seconds old. It
 ; protects from caching of incompletely updated files. In case all file updates
 ; on your site are atomic, you may increase performance by setting it to "0".

php.ini-production

@@ -1893,6 +1893,11 @@ ldap.max_links = -1
 ; http://php.net/opcache.preload
 ;opcache.preload=
 
+; Preloading code as root is not allowed for security reasons. This directive
+; facilitates to let the preloading to be run as another user.
+; http://php.net/opcache.preload_user
+;opcache.preload_user=
+
 ; Prevents caching files that are less than this number of seconds old. It
 ; protects from caching of incompletely updated files. In case all file updates
 ; on your site are atomic, you may increase performance by setting it to "0".