PHP dir() 函数
PHP 教程
· 2019-01-24 12:43:25
实例
使用 dir() 函数：
<?php
$d = dir(getcwd());
echo "Handle: " . $d->handle . "<br>";
echo "Path: " . $d->path . "<br>";
while (($file = $d->read()) !== false){
echo "filename: " . $file . "<br>";
}
$d->close();
?>
$d = dir(getcwd());
echo "Handle: " . $d->handle . "<br>";
echo "Path: " . $d->path . "<br>";
while (($file = $d->read()) !== false){
echo "filename: " . $file . "<br>";
}
$d->close();
?>
结果：
Handle: Resource id #2
Path: /etc/php
filename: .
filename: ..
filename: ajax.gif
filename: books.xml
filename: cdcatalog.xml
filename: cd_catalog.xml
filename: default.html
filename: demo_array.html
filename: demo_array.htm
...
...
...
Path: /etc/php
filename: .
filename: ..
filename: ajax.gif
filename: books.xml
filename: cdcatalog.xml
filename: cd_catalog.xml
filename: default.html
filename: demo_array.html
filename: demo_array.htm
...
...
...
定义和用法
dir() 函数返回 Directory 类的实例。该函数用于读取一个目录，包含如下：
- 给定的要打开的目录
- dir() 的 handle 和 path 两个属性是可用的
- handle 和 path 属性有三个方法：read()、rewind() 和 close()
语法
dir(directory,context);
| 参数 | 描述 |
|---|---|
| directory | 必需。规定要打开的目录。 |
| context | 可选。 |
技术细节
| 返回值： | 返回 Directory 类的实例。失败则返回 FALSE。 |
|---|---|
| PHP 版本： | 4.0+ |
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