Prefer https:// URLs when available in docs & comments

Fixes PHPOffice#737

Author: jdufresne

.github/ISSUE_TEMPLATE.md

@@ -14,7 +14,7 @@ This is:
 
 ### What are the steps to reproduce?
 
-Please provide a [Minimal, Complete, and Verifiable example](http://stackoverflow.com/help/mcve) of code that exhibits the issue without relying on an external Excel file or a web server:
+Please provide a [Minimal, Complete, and Verifiable example](https://stackoverflow.com/help/mcve) of code that exhibits the issue without relying on an external Excel file or a web server:
 
 ```php
 <?php

.github/support.yml

@@ -4,7 +4,7 @@ supportLabel: question
 # to a support page, or set to `false` to disable
 supportComment: >
   This looks like a support question. Please ask your support questions on
-  [StackOverflow](http://stackoverflow.com/questions/tagged/phpspreadsheet),
+  [StackOverflow](https://stackoverflow.com/questions/tagged/phpspreadsheet),
   or [Gitter](https://gitter.im/PHPOffice/PhpSpreadsheet).
 
   Thank you for your contributions.

.travis.yml

@@ -44,7 +44,7 @@ jobs:
     - stage: API documentation
       php: 7.2
       before_script:
-      - curl -O http://get.sensiolabs.org/sami.phar
+      - curl -O https://get.sensiolabs.org/sami.phar
       script:
       - git fetch origin master:master
       - git fetch origin --tags

CHANGELOG.PHPExcel.md

@@ -103,7 +103,7 @@ confused with PhpSpreadsheet versions.
 
 - Convert properties to string in OOCalc reader - @infojunkie [#276](https://github.com/PHPOffice/PHPExcel/issues/276)
 - Disable libxml external entity loading by default. - @maartenba [#322](https://github.com/PHPOffice/PHPExcel/issues/322)
-    - This is to prevent XML External Entity Processing (XXE) injection attacks (see http://websec.io/2012/08/27/Preventing-XEE-in-PHP.html for an explanation of XXE injection).
+    - This is to prevent XML External Entity Processing (XXE) injection attacks (see https://websec.io/2012/08/27/Preventing-XEE-in-PHP.html for an explanation of XXE injection).
     - Reference CVE-2014-2054
 
 ## [1.7.9] - 2013-06-02

CHANGELOG.md

@@ -2,8 +2,8 @@
 
 All notable changes to this project will be documented in this file.
 
-The format is based on [Keep a Changelog](http://keepachangelog.com/)
-and this project adheres to [Semantic Versioning](http://semver.org/).
+The format is based on [Keep a Changelog](https://keepachangelog.com)
+and this project adheres to [Semantic Versioning](https://semver.org).
 
 ## [Unreleased]
 
@@ -236,7 +236,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Changed
 
-- Start following [SemVer](http://semver.org) properly.
+- Start following [SemVer](https://semver.org) properly.
 
 ### Fixed
 

README.md

@@ -10,7 +10,7 @@ Master:
 [![Join the chat at https://gitter.im/PHPOffice/PhpSpreadsheet](https://img.shields.io/badge/GITTER-join%20chat-green.svg)](https://gitter.im/PHPOffice/PhpSpreadsheet)
 
 Develop:
-[![Build Status](https://travis-ci.org/PHPOffice/PhpSpreadsheet.png?branch=develop)](http://travis-ci.org/PHPOffice/PhpSpreadsheet)
+[![Build Status](https://travis-ci.org/PHPOffice/PhpSpreadsheet.png?branch=develop)](https://travis-ci.org/PHPOffice/PhpSpreadsheet)
 [![Code Quality](https://scrutinizer-ci.com/g/PHPOffice/PhpSpreadsheet/badges/quality-score.png?b=develop)](https://scrutinizer-ci.com/g/PHPOffice/PhpSpreadsheet/?branch=develop)
 [![Code Coverage](https://scrutinizer-ci.com/g/PHPOffice/PhpSpreadsheet/badges/coverage.png?b=develop)](https://scrutinizer-ci.com/g/PHPOffice/PhpSpreadsheet/?branch=develop)
 
@@ -20,7 +20,7 @@ PhpSpreadsheet is a library written in pure PHP and providing a set of classes t
 
 Read more about it, including install instructions, in the [official documentation](https://phpspreadsheet.readthedocs.io). Or check out the [API documentation](https://phpoffice.github.io/PhpSpreadsheet/master).
 
-Please ask your support questions on [StackOverflow](http://stackoverflow.com/questions/tagged/phpspreadsheet), or have a quick chat on [Gitter](https://gitter.im/PHPOffice/PhpSpreadsheet).
+Please ask your support questions on [StackOverflow](https://stackoverflow.com/questions/tagged/phpspreadsheet), or have a quick chat on [Gitter](https://gitter.im/PHPOffice/PhpSpreadsheet).
 
 ## PHPExcel vs PhpSpreadsheet ?
 

composer.json

@@ -8,15 +8,15 @@
     "authors": [
         {
             "name": "Maarten Balliauw",
-            "homepage": "http://blog.maartenballiauw.be"
+            "homepage": "https://blog.maartenballiauw.be"
         },
         {
             "name": "Mark Baker",
-            "homepage": "http://markbakeruk.net"
+            "homepage": "https://markbakeruk.net"
         },
         {
             "name": "Franck Lefevre",
-            "homepage": "http://rootslabs.net"
+            "homepage": "https://rootslabs.net"
         },
         {
             "name": "Erik Tilt"

composer.lock

@@ -38,7 +38,7 @@ Support for PHP versions will only be maintained for a period of six months beyo
 
 ## Installation
 
-Use [composer](https://getcomposer.org/) to install PhpSpreadsheet into your project:
+Use [composer](https://getcomposer.org) to install PhpSpreadsheet into your project:
 
 ```sh
 composer require phpoffice/phpspreadsheet

docs/index.md

@@ -62,7 +62,7 @@ algebra. The former rule is not what one finds using the calculation
 engine shipped with PhpSpreadsheet.
 
 - [Reference for Excel](https://support.office.com/en-us/article/Calculation-operators-and-precedence-in-Excel-48be406d-4975-4d31-b2b8-7af9e0e2878a)
-- [Reference for PHP](http://php.net/manual/en/language.operators.php)
+- [Reference for PHP](https://php.net/manual/en/language.operators.php)
 
 #### Formulas involving numbers and text
 
@@ -74,7 +74,7 @@ formula is evaluated as 3 instead of evaluating as an error. This also
 causes the Excel document being generated as containing unreadable
 content.
 
-- [Reference for this behaviour in PHP](http://php.net/manual/en/language.types.string.php#language.types.string.conversion)
+- [Reference for this behaviour in PHP](https://php.net/manual/en/language.types.string.php#language.types.string.conversion)
 
 #### Formulas don’t seem to be calculated in Excel2003 using compatibility pack?
 

docs/topics/calculation-engine.md

@@ -15,7 +15,7 @@ file format that was used by Microsoft Excel™ between versions 95 and 2003.
 The format is supported (to various extents) by most spreadsheet
 programs. BIFF files normally have an extension of .xls. Documentation
 describing the format can be [read online](https://msdn.microsoft.com/en-us/library/cc313154(v=office.12).aspx)
-or [downloaded as PDF](http://download.microsoft.com/download/2/4/8/24862317-78F0-4C4B-B355-C7B2C1D997DB/%5BMS-XLS%5D.pdf).
+or [downloaded as PDF](https://download.microsoft.com/download/2/4/8/24862317-78F0-4C4B-B355-C7B2C1D997DB/%5BMS-XLS%5D.pdf).
 
 ### Xml
 
@@ -32,7 +32,7 @@ Office Open XML SpreadsheetML, and Excel 2010 extended this still
 further with its new features such as sparklines. These files typically
 have an extension of .xlsx. This format is based around a zipped
 collection of eXtensible Markup Language (XML) files. Microsoft Office
-Open XML SpreadsheetML is mostly standardized in [ECMA 376](http://www.ecma-international.org/news/TC45_current_work/TC45_available_docs.htm)
+Open XML SpreadsheetML is mostly standardized in [ECMA 376](https://www.ecma-international.org/news/TC45_current_work/TC45_available_docs.htm)
 and ISO 29500.
 
 ### Ods
@@ -46,7 +46,7 @@ extension of .ods. The published specification for the file format is
 available from [the OASIS Open Office XML Format Technical Committee web
 page](https://www.oasis-open.org/committees/tc_home.php?wg_abbrev=office).
 Other information is available from [the OpenOffice.org XML File Format
-web page](http://www.openoffice.org/xml/), part of the
+web page](https://www.openoffice.org/xml/), part of the
 OpenOffice.org project.
 
 ### Slk

docs/topics/file-formats.md

@@ -9,7 +9,7 @@ workbooks, although at a cost of speed to access cell data.
 
 By default, PhpSpreadsheet holds all cell objects in memory, but
 you can specify alternatives by providing your own
-[PSR-16](http://www.php-fig.org/psr/psr-16/) implementation. PhpSpreadsheet keys
+[PSR-16](https://www.php-fig.org/psr/psr-16/) implementation. PhpSpreadsheet keys
 are automatically namespaced, and cleaned up after use, so a single cache
 instance may be shared across several usage of PhpSpreadsheet or even with other
 cache usages.
@@ -44,7 +44,7 @@ usage of PhpSpreadsheet.
 
 PhpSpreadsheet does not ship with alternative cache implementation. It is up to
 you to select the most appropriate implementation for your environment. You
-can either implement [PSR-16](http://www.php-fig.org/psr/psr-16/) from scratch,
+can either implement [PSR-16](https://www.php-fig.org/psr/psr-16/) from scratch,
 or use [pre-existing libraries](https://packagist.org/search/?q=psr-16).
 
 One such library is [PHP Cache](https://www.php-cache.com/) which

docs/topics/memory_saving.md

@@ -236,7 +236,7 @@ Settings::setChartRenderer(\PhpOffice\PhpSpreadsheet\Chart\Renderer\JpGraph::cla
 ### PclZip and ZipArchive
 
 Support for PclZip were dropped in favor of the more complete and modern
-[PHP extension ZipArchive](http://php.net/manual/en/book.zip.php).
+[PHP extension ZipArchive](https://php.net/manual/en/book.zip.php).
 So the following were removed:
 
 - `PclZip`
@@ -248,7 +248,7 @@ So the following were removed:
 ### Cell caching
 
 Cell caching was heavily refactored to leverage
-[PSR-16](http://www.php-fig.org/psr/psr-16/). That means most classes
+[PSR-16](https://www.php-fig.org/psr/psr-16/). That means most classes
 related to that feature were removed:
 
 - `PHPExcel_CachedObjectStorage_APC`

docs/topics/migration-from-PHPExcel.md

@@ -183,7 +183,7 @@ lower-featured Office2007 spreadsheet when this option is used.
 Xls file format is the old Excel file format, implemented in
 PhpSpreadsheet to provide a uniform manner to create both .xlsx and .xls
 files. It is basically a modified version of [PEAR
-Spreadsheet\_Excel\_Writer](http://pear.php.net/package/Spreadsheet_Excel_Writer),
+Spreadsheet\_Excel\_Writer](https://pear.php.net/package/Spreadsheet_Excel_Writer),
 although it has been extended and has fewer limitations and more
 features than the old PEAR library. This can read all BIFF versions that
 use OLE2: BIFF5 (introduced with office 95) through BIFF8, but cannot

docs/topics/reading-and-writing-to-file.md

@@ -15,7 +15,7 @@
 $textColor = imagecolorallocate($gdImage, 255, 255, 255);
 imagestring($gdImage, 1, 5, 5, 'Created with PhpSpreadsheet', $textColor);
 
-$baseUrl = 'https://phpspreadsheet.readthedocs.io/';
+$baseUrl = 'https://phpspreadsheet.readthedocs.io';
 
 $drawing = new \PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing();
 $drawing->setName('In-Memory image 1');

samples/Reader/20_Reader_worksheet_hyperlink_image.php

@@ -549,7 +549,7 @@
                     <Data ss:Type="String">AE</Data>
                 </Cell>
                 <Cell ss:StyleID="ce5"/>
-                <Cell ss:StyleID="ce5" ss:HRef="http://phpspreadsheet.readthedocs.io/">
+                <Cell ss:StyleID="ce5" ss:HRef="https://phpspreadsheet.readthedocs.io">
                     <Data ss:Type="String">PhpSpreadsheet</Data>
                 </Cell>
                 <Cell ss:StyleID="ce5"/>
@@ -22310,7 +22310,7 @@
                 <Cell ss:StyleID="ce16"/>
             </Row>
             <Row ss:Height="13.4079">
-                <Cell ss:MergeAcross="2" ss:HRef="https://www.example.com/" ss:StyleID="ce17">
+                <Cell ss:MergeAcross="2" ss:HRef="https://www.example.com" ss:StyleID="ce17">
                     <Data ss:Type="String">PhpSpreadsheet</Data>
                 </Cell>
                 <Cell ss:Index="1024" ss:StyleID="ce13"/>

samples/templates/Excel2003XMLTest.xml

@@ -21,8 +21,8 @@
  * whether in an action of contract, tort or otherwise, arising from, out of or in connection with the
  * software or the use or other dealings in the software.
  *
- * http://ewbi.blogs.com/develops/2007/03/excel_formula_p.html
- * http://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
+ * https://ewbi.blogs.com/develops/2007/03/excel_formula_p.html
+ * https://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
  */
 class FormulaParser
 {

src/PhpSpreadsheet/Calculation/FormulaParser.php

@@ -21,8 +21,8 @@
  * whether in an action of contract, tort or otherwise, arising from, out of or in connection with the
  * software or the use or other dealings in the software.
  *
- * http://ewbi.blogs.com/develops/2007/03/excel_formula_p.html
- * http://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
+ * https://ewbi.blogs.com/develops/2007/03/excel_formula_p.html
+ * https://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
  */
 class FormulaToken
 {

src/PhpSpreadsheet/Calculation/FormulaToken.php

@@ -1169,7 +1169,7 @@ public static function COVAR($yValues, $xValues)
      * Returns the smallest value for which the cumulative binomial distribution is greater
      *        than or equal to a criterion value
      *
-     * See http://support.microsoft.com/kb/828117/ for details of the algorithm used
+     * See https://support.microsoft.com/en-us/help/828117/ for details of the algorithm used
      *
      * @param float $trials number of Bernoulli trials
      * @param float $probability probability of a success on each trial

src/PhpSpreadsheet/Calculation/Statistical.php

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/cs/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/da/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/de/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/es/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/fi/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/fr/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/hu/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/it/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/nl/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/no/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/pl/functions

@@ -1,7 +1,7 @@
 ##
 ## PhpSpreadsheet
 ##
-## Data in this file derived from http://www.piuha.fi/excel-function-name-translation/
+## Data in this file derived from https://www.excel-function-translation.com/
 ##
 ##
 

src/PhpSpreadsheet/Calculation/locale/tr/functions

@@ -1,5 +1,5 @@
 ChartDirector
-	http://www.advsofteng.com/cdphp.html
+	https://www.advsofteng.com/cdphp.html
 
 GraPHPite
 	http://graphpite.sourceforge.net/
@@ -8,13 +8,13 @@ JpGraph
 	http://www.aditus.nu/jpgraph/
 
 LibChart
-	http://naku.dohcrew.com/libchart/pages/introduction/
+	https://naku.dohcrew.com/libchart/pages/introduction/
 
 pChart
 	http://pchart.sourceforge.net/
 
 TeeChart
-	http://www.steema.com/products/teechart/overview.html
+	https://www.steema.com/
 
 PHPGraphLib
     http://www.ebrueggeman.com/phpgraphlib