Vtiful\Kernel\Excel 大批量数组导出 兼容二维数组单元格合并

src/Tools/KernelExcelExportService.php

+<?php
+
+/**
+
+$service = new KernelExcelExportService('accountStatement', '对账单');
+$service->setTitle([
+'a' => 'testA', 'b' => 'testB', 'product:c' => 'testC', 'product:d' => 'testD', 'product:e' => 'testE'
+]) //设置标题  合并单元格在数组product
+  ->setDefaultStyle(12) //设置列宽样式
+  ->format([
+        ['a' => 1, 'b' => 2, 'product' => [['c' => 3, 'd' => 4, ]]],
+        ['a' => 2, 'b' => 3, 'product' => [['c' => 4, 'd' => 5, ], ['c' => 6, 'd' => 7, ]]],
+        ['a' => 3, 'b' => 4, 'product' => [['c' => 5, 'd' => 6, ], ['c' => 7, 'd' => 8, ], ['c' => 9, 'd' => 10,]]],
+    ],
+    'product'
+)->output();
+返回真实下载路径
+ *
+ * 导出如下
++-------+------------+--------------------+------------+
+| testA | testB      |       testC        | testD      |
++-------+------------+--------------------+------------+
+|   1   |     2      |         3          |      4     |
++-------+------------+--------------------+------------+
+|       |            |         4          |      5     |
+|   2   |     3      |--------------------+------------+
+|       |            |         5          |      6     |
++-------+------------+--------------------+------------+
+|       |            |         5          |      6     |
+|       |            |--------------------+------------+
+|   3   |     4      |         7          |      8     |
+|       |            |--------------------+------------+
+|       |            |         9          |      10    |
++-------+------------+--------------------+------------+
+
+ */
+namespace Meibuyu\Micro\Tools;
+
+use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
+
+class KernelExcelExportService
+{
+
+    private $fileObject;
+
+    private $headers ;   //标题
+    private $dataRowStart =2; //起始行
+
+    /**
+     *
+     * KernelExcelExportService constructor.
+     * @param $dir 文件存储目录
+     * @param $fileName 导出文件名 默认加上时间
+     */
+    public function __construct($dir,$fileName)
+    {
+        $fileName = "{$fileName}_" .date('YmdHis') . '.xlsx';
+        $dir = BASE_PATH . '/public/export/'.$dir;
+        !is_dir($dir) && !mkdir($dir, 0777, true); //不存在则创建
+        $this->fileObject    = (new \Vtiful\Kernel\Excel(['path' => $dir]))->constMemory($fileName);
+    }
+
+    /**
+     * 设置居中样式
+     * @param $width 列宽
+     * @author Liu lu
+     * date 2023-04-14
+     */
+    public function setDefaultStyle($width=12)
+    {
+        $fileHandle = $this->fileObject->getHandle();
+
+        $alignStyle =  (new \Vtiful\Kernel\Format($fileHandle))
+            ->align( \Vtiful\Kernel\Format::FORMAT_ALIGN_CENTER)
+            ->align( \Vtiful\Kernel\Format::FORMAT_ALIGN_VERTICAL_CENTER)
+            ->toResource();
+
+        $this->fileObject->setColumn(
+            'A:'.Coordinate::stringFromColumnIndex(count($this->headers)), $width, $alignStyle
+        );
+
+        return $this;
+    }
+
+    /**
+     * 设置标题
+     * @param array $titles
+     * @return $this
+     * @author Liu lu
+     * date 2023-04-14
+     */
+    public function setTitle(array  $titles)
+    {
+       $this->headers = $titles;
+       $this->fileObject->header(array_values($titles));
+       return $this;
+    }
+
+    private function setCellValue($column,$row,$value)
+    {
+        $this->fileObject->insertText($row-1,$column-1,$value);
+    }
+
+    /**
+     * @param $data
+     * @param null $splitField
+     * @return $this
+     * @author Liu lu
+     * date 2023-04-14
+     */
+    public function format( $data, $splitField = null)
+    {
+        if (empty($data)) return $this;
+
+        $titleKeys = array_keys($this->headers);
+        $recordLine = $this->dataRowStart;
+        foreach ($data as $i => $value) {
+
+            $mergeArr = []; //需要合并的项
+            $renderingArr = []; //每列的写
+            array_walk($titleKeys, function ($title, $index) use ($recordLine, $value, $splitField,&$mergeArr,&$renderingArr) {
+
+                if (!$splitField) {
+                    $this->setCellValue($index+1 , $recordLine, array_reduce(explode('.',$title),function ($carry,$i){
+                        return $carry[$i]??'';
+                    },$value));
+                    return;
+                }
+
+                $count = count($value[$splitField])?:1;
+                //合并单元格
+                if (!strstr($title, ':')) {
+                    $mergeValue = array_reduce(explode('.',$title),function ($carry,$i){
+                        return $carry[$i]??'';
+                    },$value);
+                    if($count>1){
+                        $mergeArr[] = [
+                            Coordinate::stringFromColumnIndex($index+1).$recordLine .':'.
+                            Coordinate::stringFromColumnIndex($index+1).($recordLine + $count-1),
+                            $mergeValue];
+                    }else{
+                        $renderingArr[$recordLine] [] = [$index+1,$mergeValue];
+                    }
+                    return ;
+                }
+
+                if(empty($value[$splitField])){
+                    return ;
+                }
+                foreach ($value[$splitField] as $i =>$v){
+                    $matchKey  = str_replace($splitField.':','',$title);
+                    $renderingArr[$recordLine+$i] [] = [$index+1,array_reduce(explode('.',$matchKey),function ($carry,$i){
+                        return $carry[$i]??'';
+                    },$v)];
+                }
+
+            });
+            if(!empty($mergeArr)){
+                foreach ($mergeArr as $merge){
+                    $this->fileObject->mergeCells($merge[0],$merge[1]);
+                }
+            }
+            if(!empty($renderingArr)){
+                foreach ( $renderingArr  as $row=> $render){
+                    foreach ($render as $r){
+                        list($column,$columnValue) = $r;
+                        $this->setCellValue($column,$row,$columnValue);
+                    }
+                }
+            }
+
+            if ($splitField) {
+                $recordLine += count($value[$splitField])?:1;
+            } else {
+                $recordLine++;
+            }
+        }
+        $this->dataRowStart = $recordLine; //供下次导出循环使用
+        return $this;
+    }
+
+    public function output()
+    {
+        return  $this->fileObject->output();
+    }
+
+}
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