is_callable() does actually work for constructors in context

https://www.php.net/manual/en/function.is-callable.php says

is_callable() reports constructors as not being callable.

This is not true. At least not when called from a context where the constructor is callable, e.g. a child class constructor.

    <?php
      class ParentWithConstructor
      {
        public function __construct()
        {
          ?>
            ParentWithConstructor::__construct() was called<br/>
          <?php
        }
      }
      class ParentWithoutConstructor
      {
      }
      class ChildOfParentWithConstructor extends ParentWithConstructor
      {
        public function __construct()
        {
          $isCallable = \is_callable([parent::class, '__construct']);
          ?>
            <?=static::class?>::__construct() was called<br/>
            $isCallable = <?=$isCallable?><br />
          <?php
          if ($isCallable) {
            parent::__construct();
          }
        }
      }
      class ChildOfParentWithoutConstructor extends ParentWithoutConstructor
      {
        public function __construct()
        {
          $isCallable = \is_callable([parent::class, '__construct']);
          ?>
            <?=static::class?>::__construct() was called<br/>
            $isCallable = <?=$isCallable?><br />
          <?php
          if ($isCallable) {
            parent::__construct();
          }
        }
      }
    ?>
    <p>
      <?php
        new ChildOfParentWithConstructor();
      ?>
    </p>
    <p>
      <?php
        new ChildOfParentWithoutConstructor();
      ?>
    </p>
    <p>
      PHP version <?=PHP_VERSION?>
    </p>

The output was

ChildOfParentWithConstructor::__construct() was called
$isCallable = 1
ParentWithConstructor::__construct() was called

ChildOfParentWithoutConstructor::__construct() was called
$isCallable =

PHP version 7.3.11

This needs to be clarified, rather than having a blanket statement saying it does not work, when in fact it does in the right situations.

Start with the is_callable() documentation page linked in the issue and review the statement about constructors against the supplied PHP example. Clarify the statement to account for callable context, then verify that the revised wording accurately reflects the demonstrated behavior and PHP documentation style.