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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