PHP | DirectoryIterator getCTime() Function

PHP | DirectoryIterator getExtension() Function

Last Updated : 26 Nov, 2019

The DirectoryIterator::getExtension() function is an inbuilt function in PHP which is used to get the file extension. Syntax:

string DirectoryIterator::getExtension( void )

Parameters: This function does not accept any parameters. Return Value: This function returns a string which contain the file extension, or an empty string if the file does not contain extension. Below programs illustrate the DirectoryIterator::getExtension() function in PHP: Program 1:

php

<?php

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

// Loop runs for each element of directory
foreach($directory as $dir) {
    
    // Display the file extension
    echo $dir->getExtension() . "<br>";
}
?>

Output:


html
css

ico
PNG
php

php

Note: Empty lines denote the folder which does not contain file extension. Program 2:

php

<?php

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

// Loop runs while directory is valid
while ($directory->valid()) {
    
    // Check if element is not directory
    if (!$directory->isDir()) {
        
        // Display the extension
        echo $directory->getExtension() . "<br>";
    }

    // Move to the next element
    $directory->next();
}
?>

Output:

html
css
ico
PNG
php
php

Note: The output of this function depends on the content of server folder. Reference: https://www.php.net/manual/en/directoryiterator.getextension.php

PHP | DirectoryIterator getCTime() Function

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