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PHP DirectoryIterator isWritable () Function

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

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