Method:walkRow

row walker

goes through one full row of data and executes a callback function per each cell in that row.

Note: callback functions get the value of the cell as an argument, and whatever that callback returns will be used to replace the current value of that cell.

1. Argument string |integer $row anything that is numeric is a valid row

identificator. As long as it is within the range of the currently loaded dataset

1. Argument string $callback the callback function to be executed

per each cell in a row

• Visibility public
• Returns boolean

1. false if callback does not exist
2. false if row does not exits