PHP Ternary Operator Guide: Key Features

The ternary operator in PHP has the following characteristics:

1. Using the ternary operator is only advisable when a single line of code is involved, as readability may suffer otherwise.
2. The ternary operator returns a result that can be either a value or a variable.
3. The left side of the ternary operator is a conditional expression that returns the result of the true expression if the condition is true, or the result of the false expression if the condition is false.
4. Ternary operators can be nested, but it is important to maintain code readability.
5. The ternary operator does not alter the value of a variable; it simply returns different results based on a condition.
6. The ternary operator can be used to simplify code, improve code readability, and efficiency. However, excessive use of the ternary operator may lower code readability, so it should be used appropriately according to the actual situation.