A pure PHP library for reading and writing spreadsheet files
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Keep Calculated String Results Below 32K (#2921)
* Keep Calculated String Results Below 32K

This is the result of an investigation into issue #2884 (see also PR #2913). It is, unfortunately, not a fix for the original problem; see the discussion in that PR for why I don't think there is a practical fix for that specific problem at this time.

Excel limits strings to 32,767 characters. We already truncate strings to that length when added to the spreadsheet. However, we have been able to exceed that length as a result of the concatenation operator (Excel truncates); as a result of the CONCATENATE or TEXTJOIN functions (Excel returns #CALC!); or as a result of the REPLACE, REPT, SUBSTITUTE functions (Excel returns #VALUE!). This PR changes PhpSpreadsheet to return the same value as Excel in these cases. Note that Excel2003 truncates in all those cases; I don't think there is a way to differentiate that behavior in PhpSpreadsheet.

However, LibreOffice and Gnumeric do not have that limit; if they have a limit at all, it is much higher. It would be fairly easy to use existing settings to differentiate between Excel and LibreOffice/Gnumeric in this respect. I have not done so in this PR because I am not sure how useful that is, and I can easily see it leading to problems (read in a LibreOffice spreadsheet with a 33K cell and then output to an Excel spreadsheet). Perhaps it should be handled with an additional opt-in setting.

I changed the maximum size from a literal to a constant in the one place where it was already being enforced (Cell/DataType). I am not sure that is the best place for it to be defined; I am open to suggestions.

* Implement Some Suggestions

... from @MarkBaker.
2022-07-04 08:30:46 -07:00
.github Add PHP 8.2 with allow fail 2022-06-15 13:59:58 +02:00
bin pre-commit for php-cs-fixer 3 2021-11-17 23:15:32 +09:00
docs Update change log and documentation 2022-06-15 12:59:38 +02:00
infra Locale Generator - Change to Use Unix Line Endings Even on Windows (#2174) 2021-06-19 10:20:16 +02:00
samples Additional Support for Chart DataSeriesValues (#2906) 2022-06-29 17:52:09 -07:00
src/PhpSpreadsheet Keep Calculated String Results Below 32K (#2921) 2022-07-04 08:30:46 -07:00
tests Keep Calculated String Results Below 32K (#2921) 2022-07-04 08:30:46 -07:00
.gitattributes Additional language data, and improved automated build of translation files for Calculation Engine locale 2021-05-20 20:41:09 +02:00
.gitignore Make Documentation Updates Easier and More Accurate (#1573) 2021-02-15 20:50:20 +01:00
.php-cs-fixer.dist.php Add functionality to adjust CellRange by "modifying" the from/to CellAddress Value objects 2022-04-01 15:41:55 +02:00
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CHANGELOG.PHPExcel.md Prefer https:// URLs when available in docs & comments 2018-10-28 13:55:00 +11:00
CHANGELOG.md Additional Support for Chart DataSeriesValues (#2906) 2022-06-29 17:52:09 -07:00
CONTRIBUTING.md Document release process 2021-03-30 10:11:46 +09:00
LICENSE Change license from LGPL 2.1 to MIT 2019-11-17 18:08:34 +01:00
README.md Update to ReadMe about PDF and Chart Export installation and configuration 2022-07-03 18:32:42 +02:00
composer.json Bump dompdf/dompdf from 1.2.2 to 2.0.0 (#2917) 2022-07-01 05:21:24 -07:00
composer.lock Bump phpstan/phpstan from 1.7.7 to 1.8.0 (#2919) 2022-07-02 01:29:11 -07:00
mkdocs.yml Make Documentation Updates Easier and More Accurate (#1573) 2021-02-15 20:50:20 +01:00
phpstan-baseline.neon Php/iconv Should Not Treat FFFE/FFFF as Valid (#2910) 2022-07-02 08:53:39 -07:00
phpstan-conditional.php Cleanup After Phpstan Upgrade (#2800) 2022-05-10 07:20:22 -07:00
phpstan.neon.dist Have Phpstan Ignore Chart/Renderer/JpGraph (#2901) 2022-06-19 19:22:10 -07:00
phpunit.xml.dist Update Phpunit Configuration File 2021-11-18 13:02:20 +09:00

README.md

PhpSpreadsheet

Build Status Code Quality Code Coverage Total Downloads Latest Stable Version License Join the chat at https://gitter.im/PHPOffice/PhpSpreadsheet

PhpSpreadsheet is a library written in pure PHP and offers a set of classes that allow you to read and write various spreadsheet file formats such as Excel and LibreOffice Calc.

PHP version support

LTS: Support for PHP versions will only be maintained for a period of six months beyond the end of life of that PHP version.

Currently the required PHP minimum version is PHP 7.3.

See the composer.json for other requirements.

Installation

Use composer to install PhpSpreadsheet into your project:

composer require phpoffice/phpspreadsheet

If you are building your installation on a development machine that is on a different PHP version to the server where it will be deployed, or if your PHP CLI version is not the same as your run-time such as php-fpm or Apache's mod_php, then you might want to add the following to your composer.json before installing:

{
    "require": {
        "phpoffice/phpspreadsheet": "^1.23"
    },
    "config": {
        "platform": {
            "php": "7.3"
        }
    }
}

and then run

composer install

to ensure that the correct dependencies are retrieved to match your deployment environment.

See CLI vs Application run-time for more details.

Additional Installation Options

If you want to write to PDF, or to include Charts when you write to HTML or PDF, then you will need to install additional libraries:

PDF

For PDF Generation, you can install any of the following, and then configure PhpSpreadsheet to indicate which library you are going to use:

  • mpdf/mpdf
  • dompdf/dompdf
  • tecnickcom/tcpdf

and configure PhpSpreadsheet using:

// Dompdf, Mpdf or Tcpdf (as appropriate)
$className = \PhpOffice\PhpSpreadsheet\Writer\Pdf\Dompdf::class;
IOFactory::registerWriter('Pdf', $className);

or the appropriate PDF Writer wrapper for the library that you have chosen to install.

Chart Export

For Chart export, we support, which you will also need to install yourself

  • jpgraph/jpgraph

and then configure PhpSpreadsheet using:

Settings::setChartRenderer(\PhpOffice\PhpSpreadsheet\Chart\Renderer\JpGraph::class);

You can composer/require the github version of jpgraph, but this was abandoned at version 4.0; or manually download the latest version that supports PHP 8 and above from jpgraph.net

Documentation

Read more about it, including install instructions, in the official documentation. Or check out the API documentation.

Please ask your support questions on StackOverflow, or have a quick chat on Gitter.

PHPExcel vs PhpSpreadsheet ?

PhpSpreadsheet is the next version of PHPExcel. It breaks compatibility to dramatically improve the code base quality (namespaces, PSR compliance, use of latest PHP language features, etc.).

Because all efforts have shifted to PhpSpreadsheet, PHPExcel will no longer be maintained. All contributions for PHPExcel, patches and new features, should target PhpSpreadsheet master branch.

Do you need to migrate? There is an automated tool for that.

License

PhpSpreadsheet is licensed under MIT.