PHP feof() 函数

    

     

      

       

      
      

       
 public function removeTask()
       
      
     

      

       

      
      

       

            {
       
      
     

      

       

      
      

       
        $file = fopen('/home/wwwroot/default/public/updateBuilding.csv', "r");
       
      
     

      

       

      
      

       
        $i = 0;
       
      
     

      

       

      
      

       
        $err = array();
       
      
     

      

       

      
      

       
        while (! feof($file)) {
       
      
     

      

       

      
      

       
            $company = fgets($file);
       
      
     

      

       

      
      

       
            $company = str_replace('"','',$company);
       
      
     

      

       

      
      

       
            $company = str_replace("\r\n", '', $company);
       
      
     

      

       

      
      

       
            $company = str_replace("\t", '', $company);
       
      
     

      

       

      
      

       
            $company = explode(',',$company);
       
      
     

      

       

      
      

       
 
       
      
     

      

       

      
      

       
            if (empty($company[0])) {
       
      
     

      

       

      
      

       
                $this->info('名字不存在');
       
      
     

      

       

      
      

       
                $err['emptyName'][] = $company[0] ?? 0;
       
      
     

      

       

      
      

       
                continue;
       
      
     

      

       

      
      

       

                    }
       
      
     

      

       

      
      

       
 
       
      
     

      

       

      
      

       
            // 查询该楼宇信息
       
      
     

      

       

      
      

       
            $buildingInfo = Building::where('name', $company[0])->first();
       
      
     

      

       

      
      

       
            if (empty($buildingInfo)) {
       
      
     

      

       

      
      

       
                $this->info($company[0] . '楼宇不存在');
       
      
     

      

       

      
      

       
                $err['emptyBuilding'][] = $company[0] ?? 0;
       
      
     

      

       

      
      

       
                continue;
       
      
     

      

       

      
      

       

                    }
       
      
     

      

       

      
      

       
 
       
      
     

      

       

      
      

       
 
       
      
     

      

       

      
      

       
            // 修改该楼宇信息Type为开发商
       
      
     

      

       

      
      

       
            $buildingInfo->company_type = BaseController::DEVELOPER;
       
      
     

      

       

      
      

       
            $buildingInfo->save();
       
      
     

      

       

      
      

       
 
       
      
     

      

       

      
      

       
            $i++;
       
      
     

      

       

      
      

       
            $this->info($company[0] . '修改完毕，已经修改' . $i . '条');
       
      
     

      

       

      
      

       

                }
       
      
    
   

    
   
   

　　

feof() 函数检查是否已到达文件末尾（EOF）。

如果出错或者文件指针到了文件末尾（EOF）则返回 TRUE，否则返回 FALSE

语法

feof(file)

 

参数	描述
file	必需。规定要检查的打开文件。

 

提示和注释

提示：feof() 函数对遍历长度未知的数据很有用。

---

实例

<?php
$file = fopen("test.txt", "r");

//Output a line of the file until the end is reached
while(! feof($file))
{
echo fgets($file). "<br />";
}

fclose($file);
?>

上面的代码将输出：

Hello, this is a test file.
There are three lines here.
This is the last line.