PHP fclose() 函数 - PHP教程

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fclose()

1. 定义

该函数关闭通过fopen()或fsockopen()函数打开的文件句柄。成功时返回TRUE，失败则返回FALSE。

2. 语法

fclose ( resource $handle ) : bool

3. 参数说明

参数	可选性	数据类型	描述
$handle	必需	资源类型	文件句柄，通过`fopen()`或`fsockopen()`函数打开的文件资源

4. 示例

<?php

// fclose()
// 关闭通过`fopen()`或`fsockopen()`函数打开的文件句柄

$handle = fopen(__FILE__, 'r');
var_dump($handle);// 输出：resource(5) of type (stream)
fclose($handle);
var_dump($handle);// 输出：resource(5) of type (Unknown)

5. 延展阅读

fopen()：打开一个指定的文件或 URL。如果 PHP 的allow_url_fopen未被打开，那么打开一个 URL 时fopen()调用失败

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