What potential issue might arise when trying to access a file immediately after creating it in PHP?

The potential issue that might arise when trying to access a file immediately after creating it in PHP is that the file may not have been fully written to the disk yet. This can result in errors or missing data when trying to access the file contents. To solve this issue, you can use the `fclose()` function to close the file after writing to it, ensuring that all data is flushed to the disk before attempting to access the file.

$file = fopen("example.txt", "w");
fwrite($file, "Hello, World!");
fclose($file);

// Now you can safely access the file contents
$file_contents = file_get_contents("example.txt");
echo $file_contents;