Adrien Crivelli 5d6687b6ce ISTEXT() return wrong result if referencing an empty but formatted cell ... ISTEXT should always return FALSE for empty cells, however PHPExcel returns TRUE if the cell is formatted. This can be reproduced in Excel by choosing formatting category "Text" for cell A1, and then in cell B1 input the formula '=ISTEXT(A1)'. B1 will display FALSE, but PHPExcel will return TRUE. This patch fix the NULL value being incorrectly cast to an empty string, and thus eliminating ISTEXT() issue (and probably several others).		2013-11-22 19:33:56 +09:00
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PHPExcel	ISTEXT() return wrong result if referencing an empty but formatted cell	2013-11-22 19:33:56 +09:00
PHPExcel.php	Feature: (LWol) Work Item GH-252 - Adding support for macros, Ribbon in Excel 2007	2013-11-17 00:11:45 +00:00