<?php
$list1 = [
[
"first_name" => "Fatima",
"last_name" => "A.",
"country" => "Algeria",
"continent" => "Africa",
"age" => 25,
"language" => "JavaScript"
],
[
"first_name" => "Agustin",
"last_name" => "M.",
"country" => "Chile",
"continent" => "Americas",
"age" => 37,
"language" => "C"
],
[
"first_name" => "Jing",
"last_name" => "X",
"country" => "China",
"continent" => "Asia",
"age" => 39,
"language" => "Ruby"
],
[
"first_name" => "Laia",
"last_name" => "P.",
"country" => "Andorra",
"continent" => "Europe",
"age" => 55,
"language" => "Ruby"
],
[
"first_name" => "Oliver",
"last_name" => "Q.",
"country" => "Australia",
"continent" => "Oceania",
"age" => 65,
"language" => "PHP"
]
];
var_dump(!!array_diff(['Africa', 'Americas', 'Asia', 'Europe', 'Oceania'], array_unique(array_column($list1, 'continent'))));
- Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- bool(false)
preferences:
209.73 ms | 403 KiB | 283 Q