Fix warning when reading xlsx without styles

Fixes PHPOffice/PHPExcel#1134 Fixes PHPOffice#631
gurrumpalad · Aug 19, 2018 · bebfb1e · bebfb1e
1 parent 62f4b7c
commit bebfb1e
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Fixed
 
 - Allow iterators to go out of bounds with prev - [#587](https://github.com/PHPOffice/PhpSpreadsheet/issues/587)
+- Fix warning when reading xlsx without styles - [#631](https://github.com/PHPOffice/PhpSpreadsheet/pull/631)
 
 ## [1.4.0] - 2018-08-06
 

diff --git a/src/PhpSpreadsheet/Reader/Xlsx.php b/src/PhpSpreadsheet/Reader/Xlsx.php
@@ -643,7 +643,7 @@ public function load($pFilename)
                             $excel->addCellXf($objStyle);
                         }
 
-                        foreach ($xmlStyles->cellStyleXfs->xf as $xf) {
+                        foreach (isset($xmlStyles->cellStyleXfs->xf) ? $xmlStyles->cellStyleXfs->xf : [] as $xf) {
                             $numFmt = NumberFormat::FORMAT_GENERAL;
                             if ($numFmts && $xf['numFmtId']) {
                                 $tmpNumFmt = self::getArrayItem($numFmts->xpath("sml:numFmt[@numFmtId=$xf[numFmtId]]"));