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  • 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.
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  • 原文地址:https://www.cnblogs.com/lxwphp/p/15453359.html
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