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導出方法抽離：

<?php namespace App\Exports;use Maatwebsite\Excel\Concerns\FromCollection;use Maatwebsite\Excel\Concerns\ShouldAutoSize;use Maatwebsite\Excel\Concerns\WithColumnFormatting;use Maatwebsite\Excel\Concerns\WithCustomValueBinder;use Maatwebsite\Excel\Concerns\WithEvents;use Maatwebsite\Excel\Concerns\WithStrictNullComparison;use Maatwebsite\Excel\Events\AfterSheet;use PhpOffice\PhpSpreadsheet\Cell\StringValueBinder;use PhpOffice\PhpSpreadsheet\Style\NumberFormat;class Export extends StringValueBinder implements FromCollection, ShouldAutoSize,WithColumnFormatting,WithCustomValueBinder,WithStrictNullComparison,WithEvents{ private $row; private $data; private $mergeCell; private $columnName; private $formatNumber; /* * $mergeCell $columnName ：合并單元格所需參數; * $mergeCell 需要合并的位置數組以MAP形式存儲 [開始行=>結束行] * $columnName 需要合并列 與合并行數結合使用ARRAY存儲 ['A','B'] */ public function __construct($row,$data,$mergeCell=null,$columnName=null,$formatNumber=[]){ $this->row = $row; $this->data = $data; $this->mergeCell = $mergeCell; $this->columnName = $columnName; $this->formatNumber = $formatNumber; } public function collection(){ $row = $this->row; $data = $this->data;//設置表頭 foreach ($row[0] as $key => $value) { $key_arr[] = $key; }//輸入數據 foreach ($data as $key => &$value) { $js = []; for ($i=0; $i < count($key_arr); $i++) { $js = array_merge($js,[ $key_arr[$i] => $value[ $key_arr[$i] ] ]); } array_push($row, $js); unset($val); } return collect($row); } public function registerEvents(): array{ // TODO: Implement registerEvents() method. if ($this->mergeCell && $this->columnName){ return [ AfterSheet::class => function(AfterSheet $event){ foreach ($this->columnName as $column){ foreach ($this->mergeCell as $key=>$value){ $event->sheet->getDelegate()->mergeCells($column.$key.':'.$column.$value); } } } ]; } return []; } public function columnFormats(): array{ $formatNumber = []; foreach ($this->formatNumber as $column){ $formatNumber[$column] = NumberFormat::FORMAT_TEXT; } return $formatNumber; }}

使用：

/*表頭表體都為二維數組*/$row=[['row1'=>'列1','row2'=>'列2']];/*與表頭key對應，缺少數據報錯*/$list=[['row1'=>'行1列1'，'row2'=>'行1列2'],['row1'=>'行2列1'，'row2'=>'行2列2']];/*將第一行到第三行，第五行到第七行的A,B,C列各自合并*/$mergeCell=[1=>3,5=>7];$columnName=["A","B","C"];/*數字過長的列轉換格式防止科學計數*/$formatNumber=['A','B','C'];//上方A,B,C列都為示意，根據自己需求調整，對應EXCEL的列return Excel::download(new Export($row,$list,$mergeCell,$columnName，$formatNumber),'fileName');

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