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@ 2019-09-12T15:44:28Z

<?php

$foo = null;
var_dump($foo === null);
var_dump(is_null($foo));

$bar = array('x' => 'x');
var_dump(isset($bar['x']));
var_dump(array_key_exists('x', $bar));

var_dump(isset($baz) ? $baz : null);
var_dump($baz);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

110.21 ms | 404 KiB | 5 Q