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run code in 150+ php & hhvm versions
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<?php $params = new ArrayObject(array('foo' => null)); $test = $params->offsetExists('foo'); var_dump($test);
based on kXPC4
Output for 5.0.0 - 5.2.0, 5.2.2 - 7.1.0
bool(true)
Output for 5.2.1
bool(false)
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/0pFDf on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/0pFDf on line 2