Update to https protocol for php.net links (#17168) [skip ci]

* Updated php.net link for some MemCache properties [skip ci]

* Changed protocol to https for links to php.net in comments

* Changed protocol to https for links to php.net in code

* Changed www.php.net (http) to secure.php.net (https) in comments

* Changed www.php.net (http) to secure.php.net (https) in code

* Changed protocol to https for links to php.net in UPGRADE.md

* Changed protocol to https for links to pecl.php.net in comments

* Changed us.php.net to secure.php.net (https) in comments

* Changed protocol to https for links to php.net in docs

* Changed www.php.net (http) to secure.php.net (https) in docs

* Changed protocol to https for links to pecl.php.net in docs

* Changed ru/jp.php.net to secure.php.net (https) in docs

Don't sure about russian guide: is this links meant to be for guide on russian, or not?

framework/base/Application.php

@@ -471,7 +471,7 @@ abstract class Application extends Module
      * If time zone is not configured in php.ini or application config,
      * it will be set to UTC by default.
      * @return string the time zone used by this application.
-     * @see http://php.net/manual/en/function.date-default-timezone-get.php
+     * @see https://secure.php.net/manual/en/function.date-default-timezone-get.php
      */
     public function getTimeZone()
     {
@@ -481,9 +481,9 @@ abstract class Application extends Module
     /**
      * Sets the time zone used by this application.
      * This is a simple wrapper of PHP function date_default_timezone_set().
-     * Refer to the [php manual](http://www.php.net/manual/en/timezones.php) for available timezones.
+     * Refer to the [php manual](https://secure.php.net/manual/en/timezones.php) for available timezones.
      * @param string $value the time zone used by this application.
-     * @see http://php.net/manual/en/function.date-default-timezone-set.php
+     * @see https://secure.php.net/manual/en/function.date-default-timezone-set.php
      */
     public function setTimeZone($value)
     {

framework/base/BaseObject.php

@@ -173,7 +173,7 @@ class BaseObject implements Configurable
      * Note that if the property is not defined, false will be returned.
      * @param string $name the property name or the event name
      * @return bool whether the named property is set (not null).
-     * @see http://php.net/manual/en/function.isset.php
+     * @see https://secure.php.net/manual/en/function.isset.php
      */
     public function __isset($name)
     {
@@ -195,7 +195,7 @@ class BaseObject implements Configurable
      * If the property is read-only, it will throw an exception.
      * @param string $name the property name
      * @throws InvalidCallException if the property is read only.
-     * @see http://php.net/manual/en/function.unset.php
+     * @see https://secure.php.net/manual/en/function.unset.php
      */
     public function __unset($name)
     {

framework/base/Component.php

@@ -222,7 +222,7 @@ class Component extends BaseObject
      * will be implicitly called when executing `isset($component->property)`.
      * @param string $name the property name or the event name
      * @return bool whether the named property is set
-     * @see http://php.net/manual/en/function.isset.php
+     * @see https://secure.php.net/manual/en/function.isset.php
      */
     public function __isset($name)
     {
@@ -254,7 +254,7 @@ class Component extends BaseObject
      * will be implicitly called when executing `unset($component->property)`.
      * @param string $name the property name
      * @throws InvalidCallException if the property is read only.
-     * @see http://php.net/manual/en/function.unset.php
+     * @see https://secure.php.net/manual/en/function.unset.php
      */
     public function __unset($name)
     {

framework/base/ErrorException.php

@@ -32,7 +32,7 @@ class ErrorException extends \ErrorException
 
     /**
      * Constructs the exception.
-     * @link http://php.net/manual/en/errorexception.construct.php
+     * @link https://secure.php.net/manual/en/errorexception.construct.php
      * @param $message [optional]
      * @param $code [optional]
      * @param $severity [optional]

framework/base/Security.php

@@ -55,12 +55,12 @@ class Security extends Component
     ];
     /**
      * @var string Hash algorithm for key derivation. Recommend sha256, sha384 or sha512.
-     * @see [hash_algos()](http://php.net/manual/en/function.hash-algos.php)
+     * @see [hash_algos()](https://secure.php.net/manual/en/function.hash-algos.php)
      */
     public $kdfHash = 'sha256';
     /**
      * @var string Hash algorithm for message authentication. Recommend sha256, sha384 or sha512.
-     * @see [hash_algos()](http://php.net/manual/en/function.hash-algos.php)
+     * @see [hash_algos()](https://secure.php.net/manual/en/function.hash-algos.php)
      */
     public $macHash = 'sha256';
     /**
@@ -605,7 +605,7 @@ class Security extends Component
      * compute the hash doubles for every increment by one of $cost.
      * @return string The password hash string. When [[passwordHashStrategy]] is set to 'crypt',
      * the output is always 60 ASCII characters, when set to 'password_hash' the output length
-     * might increase in future versions of PHP (http://php.net/manual/en/function.password-hash.php)
+     * might increase in future versions of PHP (https://secure.php.net/manual/en/function.password-hash.php)
      * @throws Exception on bad password parameter or cost parameter.
      * @see validatePassword()
      */
@@ -667,7 +667,7 @@ class Security extends Component
     /**
      * Generates a salt that can be used to generate a password hash.
      *
-     * The PHP [crypt()](http://php.net/manual/en/function.crypt.php) built-in function
+     * The PHP [crypt()](https://secure.php.net/manual/en/function.crypt.php) built-in function
      * requires, for the Blowfish hash algorithm, a salt string in a specific format:
      * "$2a$", "$2x$" or "$2y$", a two digit cost parameter, "$", and 22 characters
      * from the alphabet "./0-9A-Za-z".