getopt with required value should not assign the next --opt as value, if no value provided

[kkmuffme]

Description

The following code:
php opts.php --foo --bar="hello"

<?php

$longopts = array( 'foo:' );
$options = getopt('', $longopts);
var_dump($options);

Resulted in this output:

array(1) {
  ["foo"]=>
  string(11) "--bar=hello"
}

But I expected this output instead:

array(1) {
  ["foo"]=>
  string(0) ""
}

PHP Version

PHP 8.3.24

Operating System

No response

[devnexen]

that is tough because php getopt accepts inputs such as --key value similarly as regular getopt.