无法从PHP中读取的特殊字符（例如“。”）

Question

我正在为电子商务网站制作导入/导出功能。导入库存的功能正常。但那里的问题在那里。当我在库存字段内写入任何特殊字符（例如“。”，“，”）时，此字符替换为“??”。

那么，任何人都可以帮助我解决这个问题？

Answer 1

header("Content-Type: text/html; charset=utf-8"); 
     $csvContent = file_get_contents($fileName); 
     $encoding = mb_detect_encoding($csvContent, 
             array("UTF-8","UTF-32","UTF-32BE","UTF-32LE","UTF-16","UTF-16BE","UTF-16LE"), 
             TRUE); 

     if($fileEncoding !== "UTF-8") { 
      $csvContent = mb_convert_encoding($csvContent, "UTF-8", $fileEncoding); 
     } 

     foreach(explode(PHP_EOL, $csvContent) as $item) { 
      var_dump($item); 
     }