This introduce a helper class that should be used to log things, avoiding a lot of boilerplate code. Also all output are made in /tmp folder instead of beside the script itself. This is because there is a high chance that the folder containing the script is not writtable by webserver. So using the /tmp folder makes it more likely to works in a variety of setup.  | 
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| .. | ||
| Calculation | ||
| Cell | ||
| Chart | ||
| Custom | ||
| Reader | ||
| Shared | ||
| Style | ||
| Worksheet | ||
| CalculationTest.php | ||
| CellTest.php | ||
| ReferenceHelperTest.php | ||
| SampleTest.php | ||
| SettingsTest.php | ||