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@ 2018-03-17T18:29:43Z

<?php
class category {
  public $name;
  public $subCats = array();

  public function __construct($name = "") {
    $this->name = $name;
  }

  public function add_sub_cat($subCat) {
    array_push($this->subCats, $subCat);
  }
}

function tree_print($root_category) {
  $stack = array(array($root_category));
  echo '<ul>'."\n";
  while (count($stack)) {
    $category = array_shift($stack[count($stack)-1]);
    echo '<li><div id="category-name"><p>' . $category->name . '</p></div></li>'."\n";
    echo '<ul>'."\n";
    $stack[] = $category->subCats;
    while (count($stack) && count($stack[count($stack)-1]) == 0) {
      echo '</ul>'."\n";
      array_pop($stack);
    }
  }
}

$x = new category('root');
$x->add_sub_cat(new category('foo'));
$x->add_sub_cat(new category('bar'));
$x->subCats[0]->add_sub_cat(new category('baz'));
$x->subCats[1]->add_sub_cat(new category('baz2'));

tree_print($x);

Output for git.master, git.master_jit, rfc.property-hooks: <ul> <li><div id="category-name"><p>root</p></div></li> <ul> <li><div id="category-name"><p>foo</p></div></li> <ul> <li><div id="category-name"><p>baz</p></div></li> <ul> </ul> </ul> <li><div id="category-name"><p>bar</p></div></li> <ul> <li><div id="category-name"><p>baz2</p></div></li> <ul> </ul> </ul> </ul> </ul>

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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