Тернарный оператор (по сути — условный) в PHP — это сокращенный способ написания конструкции типа if-else. Он позволяет оценить условие и вернуть значение A, если условие истинно, и значение В — когда оно ложно. Этот оператор можно использовать в различных ситуациях, когда необходимо принять решение на основе какого-либо условия. Термин тернарный происходит от того, что он использует три операнда: выражение, значение1, значение2.
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- I see basic examples with the if and else portions of the PHP ternary operator like this: echo (true) ? "yes" : "no"; //prints yes echo (false) ? "yes" : "no"; //prints no.Bulunamadı: тернарный
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A Ternary is not a good solution for what you want. It will not be readable in your code, and there are much better solutions available.Why not use an array lookup "map" or "dictionary", like so:A ternary for this application would end up looking like this:Why is this bad? Because - as a single long line, you would get no valid debugging information if something were to go wrong here, the length makes it difficult to read, plus the nesting of the multiple ternaries just feels odd.A Standard Ternary is simple, easy to read, and would look like this:orA ternary is really just a convenient / shorter way to write a simple statement. The above sample ternary is the same as:However, a ternary for a complex logic quickly becomes unreadable, and is no longer worth the brevity.Even with some attentive formatting to spread it over multiple lines, it's not very clear:
$vocations = array( 1 => "Sorcerer", 2 => "Druid", 3 => "Paladin", ...);echo $vocations[$result->vocation];echo($result->group_id == 1 ? "Player" : ($result->group_id == 2 ? "Gamemaster" : ($result->group_id == 3 ? "God" : "unknown")));$value = ($condition) ? 'Truthy Value' : 'Falsey Value';echo ($some_condition) ? 'The condition is true!' : 'The condition is false.';if elseif ($some_condition) { echo 'The condition is true!';} else { echo 'The condition is false!';}echo($result->group_id == 1 ? "Player" : ($result->group_id == 2 ? "Gamemaster" : ($result->group_id == 3 ? "God" : "unknown")));echo($result->group_id == 1 ? "Player" : ($result->group_id == 2 ? "Gamemaster" : ($result->group_id == 3 ? "God" : "unknown")));