Codeigniter Import data from Microsoft Excel

Message: Array and string offset access syntax with curly braces is deprecated

Filename: Shared/String.php

Line Number: 526

ini kenapa ya bang

Maaf izin bertanya, Saya ketika klik upload data kok error yah di bagian php excel, tapi datanya masuk ke database,

this is totally bad, a very very uninformative tutorial at all.

Thank you..

Severity: 8192

Message: Array and string offset access syntax with curly braces is deprecated

Filename: Shared/String.php

Line Number: 526

Backtrace:

File: C:\xampp\htdocs\exl\ci_import_excel-master\application\third_party\PHPExcel\PHPExcel\Autoloader.php
Line: 79
Function: _error_handler

File: C:\xampp\htdocs\exl\ci_import_excel-master\application\third_party\PHPExcel\PHPExcel\Autoloader.php
Line: 79
Function: require

File: C:\xampp\htdocs\exl\ci_import_excel-master\application\third_party\PHPExcel\PHPExcel\Autoloader.php
Line: 11
Function: spl_autoload_call

File: C:\xampp\htdocs\exl\ci_import_excel-master\application\third_party\PHPExcel\PHPExcel.php
Line: 6
Function: require

File: C:\xampp\htdocs\exl\ci_import_excel-master\application\controllers\Siswa.php
Line: 26
Function: include

apakah menggunakan composer?

kalau kolom date gimana caranya?

apakah harus menggunakan MS. excel 2007 ?

Thank you master.