* Prevented reading of blank cells.
The "readEmptyCells" attribute is ignored when reading spreadsheets, resulting in memory bloat.
* Included a test file for Unit Testing
A file that contains 100 referenced cells, one of which contains data.
* New test file for reading in empty cells
* Added test for reading in a blank cell
* Updated CHANGELOG
* Changed "s to 's
Change required for code style compliance
* Further Code Style Changes
Removed spaces after variable, before array indices.
* Further Code Style Changes
* Further Code Style Changes
Removed additional spaces.
* Updated reader and tests.
* Highlight VLOOKUP bug with a new test
* Remove useless statements + fix VLOOKUP bug
Please not that we have still inconsistencies in Excel (See LOOKUP and
VLOOKUP.php test files)
* Base strtolower on our StringHelper in LookupRef
* Extract character set, so we can convert to UTF-8 if required
* Set column width and row height when defined on tr/td
* Parse align and valign on td
* Specify number format of cell via html attribute
* Formatting of b, strong, i and em tags
* Inserting image in cell when using img tag in html
* Add applying inline styles: border, fonts, alignment, dimensions
* Add tests for applying inline styles
`master` is now the only permanent branch. Features and fixes should be merged
into `master` when stable. Pull requests should be forked from `master`.
`develop` branch disappear entirely in favor of temporary features/fixes branches.
In case we generate Spreadsheet from html file and the code
in file have text color in css "color:#FF00FF" it will showing
as black color because it will render like rgb content with } "FF00FF}"
So, we fix it by adding missing bracket "{".
Closes#831
Using an operator is significantly faster than calling the max function.
As this method is called more than once per cell the difference adds up.
Closes#824
Removing the duplicate strtoupper call has a meaningful impact on
performance since this method is called at least once per cell.
`Worksheet::getCells` currently calls `strtoupper` twice. `strtoupper`
is kind of expensive and this method is called at least once for every
cell in the spreadsheet. By removing the unnecessary second call the
runtime decreases by 18% when importing a ~100K cell spreadsheet.
Closes#825
For large XLSX files `Reader/Xlsx::readColumnsAndRowsAttributes()` performs
a lot of calls to `$this->getReadFilter()` and `$this->getReadFilter()->readCell()`
as `readCell()` is called twice for each (possibbly filled) cell.
By ignoring calls to the DefaultReadFilter implementation (which always returns true),
using no custom read filter will not incur any runtime penalty.
The runtime penaltiy when using a custom read filter is reduced by a third by
caching the read filter into a variable instead of using the getter method.
Fixes issue #772.
Due to a limitation in Mpdf, the HTML string passed to its WriteHTML method
must not exceed a particular length. PhpSpreadsheet produces one HTML string
containing all spreadsheet data when writing to HTML, which can easily exceed
Mpdf's size limit. Thus, it was impossible to write large spreadsheets to PDF
using the Mpdf writer - this change fixes that issue.
Fixes#637Fixes#706
MarkBaker