PHP | DirectoryIterator isLink() Function

The DirectoryIterator::isLink() function is an inbuilt function in PHP which is used to check the current DirectoryIterator item is a symbolic link or not.

Syntax:

bool DirectoryIterator::isLink( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns TRUE if the item is a symbolic link, otherwise returns FALSE.

Below programs illustrate the DirectoryIterator::isLink() function in PHP:

Program 1:

<?php

// Create a directory Iterator
$directory = new DirectoryIterator(dirname(__FILE__));

// Loop runs for each element of directory
foreach($directory as $dir) {

    // Use isLink() function to store the result
    $link = $dir->isLink();

    // Display result
    var_dump($link);
}

?>

Output:

bool(false)
bool(false)
bool(false)

Program 2:

<?php

// Create a directory Iterator

$directory = new DirectoryIterator(dirname(__FILE__));

// Loop runs while directory is valid
while ($directory->valid()) {

    // Use isLink() function to store the result
    $link = $directory->isLink();

    // Display result
    var_dump($link);

    $directory->next();
}

?>

Output:

bool(false)
bool(false)
bool(false)

Note: The output of this function depends on the content of server folder.