DirectoryIterator::isReadable
(PHP 5, PHP 7)
DirectoryIterator::isReadable — Determine if current DirectoryIterator item can be read
说明
public
DirectoryIterator::isReadable (
void ) :
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
