PHP: Check if property exists in decoded JSON (using strict types)

demo.php

<?php declare(strict_types=1);


$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';


$j = json_decode($json);

var_dump($j);
var_dump($j->a == NULL);
//var_dump($j->a === NULL);

var_dump(property_exists($j, 'a'));

var_dump(property_exists($j, 'aaaaaaa'));

//var_dump($j->aaaaa == NULL);
//var_dump($j->aaaaa === NULL);

?>