php: get file contents from regex search

correct.file

This is the correct string.

regex_file_contents.php

<?php
// Get the list of files in the current directory.
$directoryContents = scandir(".");
print_r($directoryContents);

// Use a regex to find the one you are looking for.
$matching = array_values(preg_grep('/(.\.file)/', $directoryContents));
print_r($matching);

// If you find it, grab the contents of the file.
if ($matching) {
  $fileContents = file_get_contents($matching[0]);
} else {
  $fileContents = "The file was not found.";
}

echo $fileContents;
?>