使用 SPL 库
SPL 是 PHP 标准库，用于解决典型问题的一组接口与类的集合。
迭代器 FilesystemIterator
官方文档：http://php.net/manual/zh/class.filesystemiterator.php
类摘要：
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
FilesystemIterator extends DirectoryIterator implements SeekableIterator {
/* 常量 */
const integer CURRENT_AS_PATHNAME = 32 ;
const integer CURRENT_AS_FILEINFO = 0 ;
const integer CURRENT_AS_SELF = 16 ;
const integer CURRENT_MODE_MASK = 240 ;
const integer KEY_AS_PATHNAME = 0 ;
const integer KEY_AS_FILENAME = 256 ;
const integer FOLLOW_SYMLINKS = 512 ;
const integer KEY_MODE_MASK = 3840 ;
const integer NEW_CURRENT_AND_KEY = 256 ;
const integer SKIP_DOTS = 4096 ;
const integer UNIX_PATHS = 8192 ;
/* 方法 */
public __construct ( string $path [, int $flags = FilesystemIterator::KEY_AS_PATHNAME | FilesystemIterator::CURRENT_AS_FILEINFO | FilesystemIterator::SKIP_DOTS ] )
public mixed current ( void )
public int getFlags ( void )
public string key ( void )
public void next ( void )
public void rewind ( void )
public void setFlags ([ int $flags ] )
/* 继承的方法 */
public DirectoryIterator DirectoryIterator::current ( void )
public int DirectoryIterator::getATime ( void )
public string DirectoryIterator::getBasename ([ string $suffix ] )
public int DirectoryIterator::getCTime ( void )
public string DirectoryIterator::getExtension ( void )
public string DirectoryIterator::getFilename ( void )
public int DirectoryIterator::getGroup ( void )
public int DirectoryIterator::getInode ( void )
public int DirectoryIterator::getMTime ( void )
public int DirectoryIterator::getOwner ( void )
public string DirectoryIterator::getPath ( void )
public string DirectoryIterator::getPathname ( void )
public int DirectoryIterator::getPerms ( void )
public int DirectoryIterator::getSize ( void )
public string DirectoryIterator::getType ( void )
public bool DirectoryIterator::isDir ( void )
public bool DirectoryIterator::isDot ( void )
public bool DirectoryIterator::isExecutable ( void )
public bool DirectoryIterator::isFile ( void )
public bool DirectoryIterator::isLink ( void )
public bool DirectoryIterator::isReadable ( void )
public bool DirectoryIterator::isWritable ( void )
public string DirectoryIterator::key ( void )
public void DirectoryIterator::next ( void )
public void DirectoryIterator::rewind ( void )
public void DirectoryIterator::seek ( int $position )
public string DirectoryIterator::__toString ( void )
public bool DirectoryIterator::valid ( void )
}
|
使用这个迭代器的方法很简单，实例化的时候传入的是目录路径，这个迭代器继承自 DirectoryIterator 迭代器，而 DirectoryIterator 迭代器又继承自 SplFileInfo 类，这个类我们后面介绍。
