Syntax:bool DirectoryIterator::isWritable (void)
Parameters:This function takes no parameters.
Return Value:This function returns TRUE if the file / directory is writable, otherwise it returns FALSE.The following programs illustrate the DirectoryIterator::isWritable() function in PHP:
Program 1:
// Create an Iterator directory
$directory
=
new
DirectoryIterator (dirname (
__ FILE__
));
// loop is performed for each element
foreach
(
$directory
as
$dir
) {
// Check for writable element
if
(
$dir
-> isWritable()) {
// Show file name
echo
$dir
-> getFilename().
"
"
;
}
}
?>
Output:. .. applications.html bitnami.css dashboard favicon.ico engineer.PNG gfg.php img index.php Sublime Text Build 3211 x64 Setup.exe webalizer xampp
Program 2:
// Create the Iterator directory
$directory
=
new
DirectoryIterator (dirname (
__ FILE__
));
// Loop while the catalog item is valid
while
(
$directory
-> valid()) {
// Check for writable element
if
(
$directory
-> isWritable() ) {
// Show file name
echo
$directory
-> getFilename().
"
"
;
}
// Move to next item
$directory
-> next();
}
?>
Output:. .. applications.html bitnami.css dashboard favicon.ico engineer.PNG gfg.php img index.php Sublime Text Build 3211 x64 Setup.exe webalizer xampp
Note . The output of this function depends on the contents of the server folder.Link: https : //www.php.net/manual/en/directoryiterator.iswritable.php