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/lib/spout/src/Spout/Reader/XLSX/Helper/ -> CellHelper.php (source)

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Differences Between: [Versions 310 and 400] [Versions 39 and 400]

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Defines 1 class

CellHelper:: (2 methods):
  getColumnIndexFromCellIndex()
  isValidCellIndex()


Class: CellHelper  - X-Ref

Class CellHelper
This class provides helper functions when working with cells

getColumnIndexFromCellIndex($cellIndex)   X-Ref
Returns the base 10 column index associated to the cell index (base 26).
Excel uses A to Z letters for column indexing, where A is the 1st column,
Z is the 26th and AA is the 27th.
The mapping is zero based, so that A1 maps to 0, B2 maps to 1, Z13 to 25 and AA4 to 26.

return: int
param: string $cellIndex The Excel cell index ('A1', 'BC13', ...)

isValidCellIndex($cellIndex)   X-Ref
Returns whether a cell index is valid, in an Excel world.
To be valid, the cell index should start with capital letters and be followed by numbers.
There can only be 3 letters, as there can only be 16,384 rows, which is equivalent to 'XFE'.

return: bool
param: string $cellIndex The Excel cell index ('A1', 'BC13', ...)