(PHP 5 >= 5.2.2, PHP 7, PHP 8)
DirectoryIterator::getBasename — Get base name of current DirectoryIterator item
$suffix = ""): stringGet the base name of the current DirectoryIterator item.
suffix
       If the base name ends in suffix, 
       this will be cut.
      
The base name of the current DirectoryIterator item.
Example #1 A DirectoryIterator::getBasename() example
     This example will list the full base name and the base name with 
     suffix .jpg removed for the files in the directory
     containing the script.
    
<?php
$dir = new DirectoryIterator(dirname(__FILE__));
foreach ($dir as $fileinfo) {
    if ($fileinfo->isFile()) {
        echo $fileinfo->getBasename() . "\n";
        echo $fileinfo->getBasename('.jpg') . "\n";
    }
}
?>
The above example will output something similar to:
apple.jpg apple banana.jpg banana index.php index.php pear.jpg pear