DirectoryIterator::isWritable
(PHP 5, PHP 7)
DirectoryIterator::isWritable — Determine if current DirectoryIterator item can be written to
说明
public DirectoryIterator::isWritable
( void
) : 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