迪加网络微信上墙大屏幕互动系统(人人现场)V2019版导出出错
迪加网络微信上墙大屏幕互动系统(人人现场)V2019版活动结束导出数据出错迪加网络微信上墙大屏幕互动系统(人人现场)V2019版不支持PHP 8.0环境，换为PHP 7.4环境后，前台使用正常，可是活动结束进入后台导出数据时出错，错误提示如下：
Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/www/wwwroot/wx/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/String.php on line 526
Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/www/wwwroot/wx/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/String.php on line 527
Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/www/wwwroot/wx/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/String.php on line 538
Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/www/wwwroot/wx/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/String.php on line 539
Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/www/wwwroot/wx/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/String.php on line 541
Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/www/wwwroot/wx/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/String.php on line 542
解决方法:
迪加网络微信上墙大屏幕互动系统(人人现场)V2019版不支持PHP 7.4-8.0环境，换为PHP 5.6环境即可正常显示。
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