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* Problems Using Builtin PHP Functions Directly As Excel Functions This fixes issue #1789. As originally reported, stricter typing was causing PHP8 to throw an exception when a non-numeric value was passed to the Round function. Previous releases of PHP did not see this problem, however, on further analysis, they were also incorrect in returning 0 as the result in the erroneous situation, when they should have been returning a VALUE error. Yet more analysis showed that other functions would also have problems, and, in addition, might not handle invalid input (e.g. a negative length passed to REPT) or output (e.g. NAN in the case of ACOS(2)) correctly. The following MathTrig functions are affected: ABS, ACOS, ACOSH, ASIN, ASINH, ATAN, ATANH, COS, COSH, DEGREES (rad2deg), EXP, LN (log), LOG10, RADIANS (deg2rad), REPT (str_repeat), SIN, SINH, SQRT, TAN, TANH. One TextData function (REPT) is also affected. This change lets PhpSpreadsheet validate the input for each of these functions before passing control to the builtin, and handle the output afterwards. There were no explicit tests for any of these functions, a fact made easy to ignore by the fact that PhpSpreadsheet delegated the heavy lifting to PHP itself for these cases. A full suite of tests is now added for each of the affected functions. * Scrutinizer Recommendations Only in 3 modules which are part of this PR. * Improved Handling of Tan(PI/2) Return DIV0 error for TAN when COS is very small. * Additional Trig Tests Results which should be infinity, i.e. DIV/0 error. |
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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.
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.