Update todocumentation

Author: MarkBaker

docs/topics/reading-and-writing-to-file.md

@@ -125,7 +125,7 @@ the Excel file:
 ```php
 class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter {
 
-    public function readCell($column, $row, $worksheetName = '') {
+    public function readCell($columnAddress, $row, $worksheetName = '') {
         // Read title row and rows 20 - 30
         if ($row == 1 || ($row >= 20 && $row <= 30)) {
             return true;
@@ -242,7 +242,7 @@ in the Excel file:
 ```php
 class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter {
 
-    public function readCell($column, $row, $worksheetName = '') {
+    public function readCell($columnAddress, $row, $worksheetName = '') {
         // Read title row and rows 20 - 30
         if ($row == 1 || ($row >= 20 && $row <= 30)) {
             return true;
@@ -301,7 +301,7 @@ in the Excel file:
 ```php
 class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter {
 
-    public function readCell($column, $row, $worksheetName = '') {
+    public function readCell($columnAddress, $row, $worksheetName = '') {
         // Read title row and rows 20 - 30
         if ($row == 1 || ($row >= 20 && $row <= 30)) {
             return true;
@@ -352,7 +352,7 @@ in the SYLK file:
 ```php
 class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter {
 
-    public function readCell($column, $row, $worksheetName = '') {
+    public function readCell($columnAddress, $row, $worksheetName = '') {
         // Read title row and rows 20 - 30
         if ($row == 1 || ($row >= 20 && $row <= 30)) {
             return true;
@@ -397,7 +397,7 @@ in the Calc file:
 ```php
 class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter {
 
-    public function readCell($column, $row, $worksheetName = '') {
+    public function readCell($columnAddress, $row, $worksheetName = '') {
         // Read title row and rows 20 - 30
         if ($row == 1 || ($row >= 20 && $row <= 30)) {
             return true;

docs/topics/reading-files.md

@@ -256,7 +256,7 @@ $sheetname = 'Data Sheet #3';
 /**  Define a Read Filter class implementing \PhpOffice\PhpSpreadsheet\Reader\IReadFilter  */
 class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
 {
-    public function readCell($column, $row, $worksheetName = '') {
+    public function readCell($columnAddress, $row, $worksheetName = '') {
         //  Read rows 1 to 7 and columns A to E only
         if ($row >= 1 && $row <= 7) {
             if (in_array($column,range('A','E'))) {
@@ -301,7 +301,7 @@ class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
         $this->columns  = $columns;
     }
 
-    public function readCell($column, $row, $worksheetName = '') {
+    public function readCell($columnAddress, $row, $worksheetName = '') {
         //  Only read the rows and columns that were configured
         if ($row >= $this->startRow && $row <= $this->endRow) {
             if (in_array($column,$this->columns)) {
@@ -340,7 +340,7 @@ class ChunkReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
         $this->endRow   = $startRow + $chunkSize;
     }
 
-    public function readCell($column, $row, $worksheetName = '') {
+    public function readCell($columnAddress, $row, $worksheetName = '') {
         //  Only read the heading row, and the configured rows
         if (($row == 1) || ($row >= $this->startRow && $row < $this->endRow)) {
             return true;