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@ 2013-04-19T10:54:53Z

<?php
    class MyXML extends SimpleXMLElement
    {
        public function firstChild()
        {
            $children = $this->children();
            foreach ($children as $child)
                break;
            return $child;
        }

		public function keyHasTwins($key)
        {
			return (bool)count($this->$key);
        }

    }

    $s = '<?xml version="1.0" encoding="utf-8" standalone="yes" ?>'.
         '<request>'.
         '  <body>'.
         '      <rows>'.
         '          <row id="1"/>'.
         '          <row id="2"/>'.
         '          <row id="3"/>'.
         '          <row2 ver="2.0">test data</row2>'.
         '      </rows>'.
         '  </body>'.
         '</request>';

	$obj = new MyXML($s);
	$rows = $obj->firstChild()->firstChild()->children();

	var_dump($rows->keyHasTwins('row'));

Output for git.master, git.master_jit, rfc.property-hooks: bool(true)

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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