DirectoryIterator::isReadable()
(PHP 5,PHP 7)
Determine if current DirectoryIterator item can be read
说明
public DirectoryIterator::isReadable(void) : bool
Determines if the currentDirectoryIteratoritem is readable.
参数
此函数没有参数。
返回值
ReturnsTRUE
if the file is readable,otherwiseFALSE
范例
Example#1DirectoryIterator::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