PHPExcel导出Excel报错:PHPExcel_IOFactory::load()的解决方案

目录

• 背景
• 问题分析
• 解决方案
• 附录

{
    "name": "PHP Notice",
    "message": "iconv(): Detected an illegal character in input string",
    "code": 8,
    "type": "yii\\base\\ErrorException",
    "file": "/usr/share/nginx/html/ycsh_automat/Classes/PHPExcel/Shared/String.php",
    "line": 490,
    "stack-trace": [
      "#0 [internal function]: yii\\base\\ErrorHandler->handleError(null, 'iconv(): Detect...', '/usr/share/ngin...', 493, Array)", 
      "#1 /usr/share/nginx/html/ycsh_automat/Classes/PHPExcel/Shared/String.php(490): iconv('CP1252', 'UTF-8', '\\xE8\\xAE\\xA2\\xE5\\x8D\\x95\\xE5\\x88\\x97\\xE8\\xA1\\xA8\\x00\\x00\\x00...')", 
      "#2 /usr/share/nginx/html/ycsh_automat/Classes/PHPExcel/Reader/Excel5.php(1362): PHPExcel_Shared_String::ConvertEncoding('\\xE8\\xAE\\xA2\\xE5\\x8D\\x95\\xE5\\x88\\x97\\xE8\\xA1\\xA8\\x00\\x00\\x00...', 'UTF-8', 'CP1252')", 
      "#3 /usr/share/nginx/html/ycsh_automat/Classes/PHPExcel/Reader/Excel5.php(633): PHPExcel_Reader_Excel5->readSummaryInformation()", 
      "#4 /usr/share/nginx/html/ycsh_automat/Classes/PHPExcel/IOFactory.php(192): PHPExcel_Reader_Excel5->load('/usr/share/ngin...')", 
      "#5 /usr/share/nginx/html/ycsh_automat/common/services/ExcelMzService.php(154): PHPExcel_IOFactory::load('/usr/share/ngin...')", 
      "#6 /usr/share/nginx/html/ycsh_automat/common/models/ExportTask.php(306): common\\services\\ExcelMzService->cronCreateExportFile(Array, Array, '/usr/share/ngin...', Array, '\\xE8\\xAE\\xA2\\xE5\\x8D\\x95\\xE5\\x88\\x97\\xE8\\xA1\\xA8')", 
      "#7 /usr/share/nginx/html/ycsh_automat/api/controllers/CronController.php(54): common\\models\\ExportTask::execExportTask(Object(common\\models\\ExportTask), 1, '{\"search_params...')", 
      "#8 [internal function]: api\\controllers\\CronController->actionRunExportTask()", 
      ...
}