(PHP 5, PHP 7)
DirectoryIterator::isWritable — Determine if current DirectoryIterator item can be written to
Determines if the current DirectoryIterator item is writable.
此函数没有参数。
Returns TRUE if the file/directory is writable, otherwise FALSE
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