Not Finding Rels File

Fix PHPOffice#3552. Inserting rows or columns can cause page break arrays to be out of order. Sort them in Worksheet functions getBreaks, getRowBreaks, and getColumnBreaks before returning to caller.

src/PhpSpreadsheet/Worksheet/Worksheet.php

@@ -1806,9 +1806,15 @@ public function setBreakByColumnAndRow($columnIndex, $row, $break)
     public function getBreaks()
     {
         $breaks = [];
+        /** @var callable */
+        $compareFunction = [self::class, 'compareRowBreaks'];
+        uksort($this->rowBreaks, $compareFunction);
         foreach ($this->rowBreaks as $break) {
             $breaks[$break->getCoordinate()] = self::BREAK_ROW;
         }
+        /** @var callable */
+        $compareFunction = [self::class, 'compareColumnBreaks'];
+        uksort($this->columnBreaks, $compareFunction);
         foreach ($this->columnBreaks as $break) {
             $breaks[$break->getCoordinate()] = self::BREAK_COLUMN;
         }
@@ -1823,16 +1829,40 @@ public function getBreaks()
      */
     public function getRowBreaks()
     {
+        /** @var callable */
+        $compareFunction = [self::class, 'compareRowBreaks'];
+        uksort($this->rowBreaks, $compareFunction);
+
         return $this->rowBreaks;
     }
 
+    protected static function compareRowBreaks(string $coordinate1, string $coordinate2): int
+    {
+        $row1 = Coordinate::indexesFromString($coordinate1)[1];
+        $row2 = Coordinate::indexesFromString($coordinate2)[1];
+
+        return $row1 - $row2;
+    }
+
+    protected static function compareColumnBreaks(string $coordinate1, string $coordinate2): int
+    {
+        $column1 = Coordinate::indexesFromString($coordinate1)[0];
+        $column2 = Coordinate::indexesFromString($coordinate2)[0];
+
+        return $column1 - $column2;
+    }
+
     /**
-     * Get row breaks.
+     * Get column breaks.
      *
      * @return PageBreak[]
      */
     public function getColumnBreaks()
     {
+        /** @var callable */
+        $compareFunction = [self::class, 'compareColumnBreaks'];
+        uksort($this->columnBreaks, $compareFunction);
+
         return $this->columnBreaks;
     }
 

tests/PhpSpreadsheetTests/Reader/Xlsx/Issue3552Test.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Reader\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Reader\Xlsx;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+use PhpOffice\PhpSpreadsheetTests\Functional\AbstractFunctional;
+
+class Issue3552Test extends AbstractFunctional
+{
+    /**
+     * @var string
+     */
+    private static $testbook = 'tests/data/Reader/XLSX/issue.3552.xlsx';
+
+    public function testRowBreaks(): void
+    {
+        $reader = new Xlsx();
+        $spreadsheet = $reader->load(self::$testbook);
+        $sheet = $spreadsheet->getActiveSheet();
+        self::assertSame(['A92', 'A184', 'A276', 'A368', 'A417', 'A511', 'A554'], array_keys($sheet->getRowBreaks()));
+        $sheet->insertNewRowBefore(397, 1);
+        $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, 'Xlsx');
+        $spreadsheet->disconnectWorksheets();
+        $reloadedSheet = $reloadedSpreadsheet->getActiveSheet();
+        self::assertSame(['A92', 'A184', 'A276', 'A368', 'A418', 'A512', 'A555'], array_keys($reloadedSheet->getRowBreaks()));
+        $reloadedSpreadsheet->disconnectWorksheets();
+    }
+
+    public function testColumnBreaks(): void
+    {
+        $spreadsheet = new Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+        $sheet->setBreak('Z1', Worksheet::BREAK_COLUMN);
+        $sheet->setBreak('H1', Worksheet::BREAK_COLUMN);
+        $sheet->setBreak('P1', Worksheet::BREAK_COLUMN);
+        self::assertSame(['H1', 'P1', 'Z1'], array_keys($sheet->getColumnBreaks()));
+        $sheet->insertNewColumnBefore('N', 2);
+        self::assertSame(['H1', 'R1', 'AB1'], array_keys($sheet->getColumnBreaks()));
+        $spreadsheet->disconnectWorksheets();
+    }
+}