Php/docs/directoryiterator.isreadable

• PHP Manual
• DirectoryIterator
• Determine if current DirectoryIterator item can be read

DirectoryIterator::isReadable

(PHP 5, PHP 7)

DirectoryIterator::isReadable — Determine if current DirectoryIterator item can be read

说明

public DirectoryIterator::isReadable ( ) : bool

Determines if the current DirectoryIterator item is readable.

参数

此函数没有参数。

返回值

Returns true if the file is readable, otherwise false

范例

Example #1 DirectoryIterator::isReadable() example

<?php$iterator = new DirectoryIterator(dirname(__FILE__));foreach ($iterator as $fileinfo) {    if ($fileinfo->isReadable()) {        echo $fileinfo->getFilename() . "\n";    }}?>

以上例程的输出类似于：

apple.jpg
banana.jpg
example.php
pears.jpg

参见

• DirectoryIterator::isExecutable() - Determine if current DirectoryIterator item is executable
• DirectoryIterator::isWritable() - Determine if current DirectoryIterator item can be written to
• DirectoryIterator::getPerms() - Get the permissions of current DirectoryIterator item