Php/docs/directoryiterator.iswritable

• PHP Manual
• DirectoryIterator
• Determine if current DirectoryIterator item can be written to

DirectoryIterator::isWritable

(PHP 5, PHP 7)

DirectoryIterator::isWritable — Determine if current DirectoryIterator item can be written to

说明

public DirectoryIterator::isWritable ( ) : bool

Determines if the current DirectoryIterator item is writable.

参数

此函数没有参数。

返回值

Returns true if the file/directory is writable, otherwise false

范例

Example #1 DirectoryIterator::isWritable() example

This example lists the files and directories which can be opened for writing in the directory containing the script.

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

以上例程的输出类似于：

apples.txt
bananas.html
pears

参见

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