a89572107a
* Handling of #REF! Errors in Subtotal, and More This PR derives from, and supersedes, PR #2870, submitted by @ndench. The problem reported in the original is that SUBTOTAL does not handle #REF! errors in its arguments properly; however, my investigation has enlarged the scope. The main problem is in Calculation, and it has a simple fix. When the calculation engine finds a reference to an uninitialized cell, it uses `null` as the value. This is appropriate when the cell belongs to a defined sheet; however, for an undefined sheet, #REF! is more appropriate. With that fix in place, SUBTOTAL still needs a small fix of its own. It tries to parse its cell reference arguments into an array, but, if the reference does not match the expected format (as #REF! will not), this results in referencing undefined array indexes, with attendant messages. That assignment is changed to be more flexible, eliminating the problem and the messages. Those 2 fixes are sufficient to ensure that the original problem is resolved. It also resolves a similar problem with some other functions (e.g. SUM). However, it does not resolve it for all functions. Or, to be more particular, many functions will return #VALUE! rather than #REF! if this arises, and the same is true for other errors in the function arguments, e.g. #DIV/0!. This PR does not attempt to address all functions; I need to think of a systematic way to pursue that. However, at least for most MathTrig functions, which validate their arguments using a common method, it is relatively easy to get the function to propagate the proper error result. * Arrange Array The Way call_user_func_array Wants Problem with Php8.0+ - array passed to call_user_func_array must have int keys before string keys, otherwise Php thinks we are passing positional parameters after keyword parameters. 7 other functions use flattenArrayIndexed, but Subtotal is the only one which uses that result to subsequently pass arguments to call_user_func_array. So the others should not require a change. A specific test is added for SUM to validate that conclusion. * Change Needed for Hidden Row Filter Same as change made to Formula Args filter. |
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| CHANGELOG.PHPExcel.md | ||
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README.md
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.
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.