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<?php $xml = new SimpleXMLElement('<tag></tag>'); echo 'An empty SimpleXMLElement is '; var_export((bool) $xml); echo "\n"; $xml = new SimpleXMLElement('<tag>data</tag>'); echo 'A SimpleXMLElement with data is '; var_export((bool) $xml); echo "\n"; $obj = new stdClass(); echo 'An empty stdClass is '; var_export((bool) $obj);based on MCLF8
Output for 5.0.0 - 5.6.3, php7@20140507 - 20141101, hhvm-3.3.0 - 3.4.1
An empty SimpleXMLElement is false A SimpleXMLElement with data is true An empty stdClass is true
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/3hWSY on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/3hWSY on line 2