<?php
/**
 *获取excel所有的批注
 *
 * 存在编码问题，xls和xlsx的批注编码不同，建议使用xlsx文件格式
 */


/** Include PHPExcel_IOFactory */
require_once dirname(__FILE__) . '/Classes/PHPExcel/IOFactory.php';


$inputFileName = "file.xlsx";

if (!file_exists($inputFileName)) {
    exit("not found $inputFileName." . EOL);
}

$inputFileType = PHPExcel_IOFactory::identify($inputFileName);
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
$objPHPExcel = $objReader->load($inputFileName);

// 获取所有批注
$objSheel = $objPHPExcel->getSheet();
$comments = $objSheel->getComments();//所有的批注
foreach ($comments as $pCellCoordinate => $comment) {
    $cell_value = $objSheel->getCell($pCellCoordinate)->getValue();
    $comment_value = $comment->getText()->getPlainText();
    
    // $cell_value = iconv('gbk', 'utf-8', $cell_value);
    // $comment_value = iconv('gbk', 'utf-8', $comment_value);

    var_dump($cell_value);
    var_dump($comment_value);
}