Is it true that there is no built-in `move()` function in PHP, and how does this impact the use of `rename()` for moving files?

Yes, it is true that there is no built-in `move()` function in PHP. To move a file from one location to another, the `rename()` function can be used. The `rename()` function can be used to move a file by specifying the current file path and the new file path.

$oldFilePath = 'path/to/old/file.txt';
$newFilePath = 'path/to/new/file.txt';

if (rename($oldFilePath, $newFilePath)) {
    echo 'File moved successfully';
} else {
    echo 'Error moving file';
}