Definition and Usage
定义和用法

The feof() function checks if the "end-of-file" (EOF) has been reached.
feof()函数的作用是：测试文件指针是否到了文件结束的位置。

This function returns TRUE if an error occurs, or if EOF has been reached. Otherwise it returns FALSE.
如果有错误内容产生或者已到达文件结束的位置[EOF]，那么返回True；否则将返回False。

Syntax
语法

feof(file)

Tips and Notes
提示

Tip: The feof() function is useful for looping through data of unknown length.
提示：feof()函数对于位置长度的数据使用循环语句非常有用。

Example
案例

<?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);
?> 

The output of the code above will be:
上述代码将输出下面的结果：

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

评论 (0) All