3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.18, 8.4.1 - 8.4.5
isset_or($tested["beta"]): nopearray ( '$orig' => array ( 'alpha' => 1, ), '$tested' => array ( 'alpha' => 1, 'beta' => NULL, ), 'array_key_exists("beta")' => array ( '$orig' => false, '$tested' => true, ), )
preferences:
120.11 ms | 414 KiB | 5 Q