c

inc/Hura8/System/ReadExcel.php

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+<?php
+/**
+ * Created by Glee Ltd.
+ * Date: 12-May-18
+ * Time: 12:02 PM
+ * Description: a class wrapper for reading an excel file and apply a callback on each rows
+ */
+
+namespace Hura8\System;
+
+
+use PhpOffice\PhpSpreadsheet\IOFactory;
+
+class ReadExcel
+{
+    protected static $default_cols = [
+        'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
+        'AA','AB','AC','AD','AE','AF','AG','AH','AI','AJ','AK','AL','AM',
+        'AN','AO','AP','AQ','AR','AS','AT','AU','AV','AW','AX','AY','AZ',
+        //...
+    ];
+
+    /* $objReader Reader\IReader */
+    protected $objReader;
+
+    public function __construct($ext="xlsx"){
+        //    $inputFileType = 'Xls';
+        //    $inputFileType = 'Xlsx';
+        //    $inputFileType = 'Xml';
+        //    $inputFileType = 'Ods';
+        //    $inputFileType = 'Slk';
+        //    $inputFileType = 'Gnumeric';
+        //    $inputFileType = 'Csv';
+        $inputFileType = ucfirst($ext);
+        $this->objReader = IOFactory::createReader($inputFileType);
+    }
+
+    /*return [
+            'sheet_index' => [
+                'row_id' => [
+                    //column name => content
+                    'A' => '',
+                    'B' => '',
+                ],
+            ],
+            //...
+        ];*/
+    public function read(
+        $excel_file,
+        $sheet_start_row = 2,
+        array $column_list = ['A', 'B'],
+        $callback_on_each_row = '',
+        $return_content = false
+    ) {
+
+        //$objReader->setReadDataOnly(true);
+        $objPHPExcel = $this->objReader->load($excel_file);
+        $apply_callback_on_rows = ($callback_on_each_row && function_exists($callback_on_each_row));
+
+        $number_sheet = $objPHPExcel->getSheetCount();
+
+        $all_sheet = [];
+
+        $map_column_list = (sizeof($column_list)) ? $column_list : self::$default_cols;
+
+        for($i=0; $i < $number_sheet; $i++){
+
+            $objPHPExcel->setActiveSheetIndex($i);
+            $current_sheet = $objPHPExcel->getActiveSheet();
+            $number_row = $current_sheet->getHighestRow();
+
+            $all_sheet_rows = [];
+            for($j = $sheet_start_row; $j <= $number_row; $j++){
+                $rows_content = [];
+                foreach ($map_column_list as $col) {
+                    //$cell_value = $current_sheet->getCell($col . $j)->getFormattedValue();
+                    $cell_value = $current_sheet->getCell($col . $j)->getValue();
+                    $rows_content[$col] = ($cell_value) ? trim($cell_value) : '';
+                }
+
+                //check if we want to return data
+                if($return_content) $all_sheet_rows[$j] = $rows_content;
+
+                //check if we want to apply callback right away
+                if($apply_callback_on_rows) {
+                    call_user_func($callback_on_each_row, $rows_content);
+                }
+            }
+
+            if($return_content) $all_sheet[$i] = $all_sheet_rows;
+        }
+
+        //free resource
+        $objPHPExcel = null;
+
+        return ($return_content) ? $all_sheet : true;
+    }
+}