Definition and Usage
定义和用法

The fgetc() function returns a single character from an open file.
fgetc()函数的作用是：从文件指针中读取字符。

Syntax
语法

fgetc(file)

Tips and Notes
注意点

Note: This function is slow and should not be used on large files. If you need to read one character at a time from a large file, use fgets() to read data one line at a time and then process the line one character at a time with fgetc().
注意：这个函数运行起来非常缓慢，所以它不宜对打的文件对象进行使用。

Example 1
案例1

<?php

$file = fopen("test2.txt","r");
echo fgetc($file);
fclose($file);

?> 

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

H

Example 2
案例2

Read file character by character:
逐字读取文件：

<?php

$file = fopen("test2.txt","r");

while (! feof ($file)) { echo fgetc($file); }

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.

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