Using return in ternary operator

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I'm trying to use return in a ternary operator, but receive an error:

Parse error: syntax error, unexpected T_RETURN 

Here's the code:

$e = $this->return_errors();
(!$e) ? '' : return array('false', $e);

Is this possible?


This is the correct syntax:

return  !$e ? '' : array('false', $e);

return statement in ternary operator c++, If condition is true, the ternary operator returns the value of the first quite a common scenario, and using the ternary operator can be far more� Then, the ternary operator is used to check if number is even or not. Since, 2 is even, the expression (number % 2 == 0) returns true. We can also use ternary operator to return numbers, strings and characters. Instead of storing the return value in variable isEven, we can directly print the value returned by ternary operator as,

Close. You'd want return condition?a:b

Conditional (ternary) operator, The ternary operator starts with a boolean condition. Above, a conditional expression x > y returns true, so the first statement after ? will be� Thus, a ternary operator is short form of if else statement. The above example can be re-write using if else condition, as shown below. Example: Ternary operator replaces if statement

It doesn't work in most languages because return is a statement (like if, while, etc.), rather than an operator that can be nested in an expression. Following the same logic you wouldn't try to nest an if statement within an expression:

// invalid because 'if' is a statement, cannot be nested, and yields no result
func(if ($a) $b; else $c;); 

// valid because ?: is an operator that yields a result
func($a ? $b : $c); 

It wouldn't work for break and continue as well.

The JavaScript Ternary Operator as a Shortcut for If/Else Statements, This Java ternary operator tutorial explains how to use the ternary operator in Java. If it is, the ternary operator returns the val1 value. The conditional (ternary) operator is the only JavaScript operator that takes three operands: a condition followed by a question mark (?), then an expression to execute if the condition is truthy followed by a colon (:), and finally the expression to execute if the condition is falsy.

No it's not possible, and it's also pretty confusing as compared to:

if($e) {
    return array('false', $e);

C# ?: Ternary Operator (Conditional Operator), The condition is an expression that evaluates to a Boolean value, either true or false . If the condition is true , the ternary operator returns expression_1 , otherwise� The conditional operator is kind of similar to the if-else statement as it does follow the same algorithm as of if-else statement but the conditional operator takes less space and helps to write the if-else statements in the shortest way possible.

No. But you can have a ternary expression for the return statement.

return (!$e) ? '' : array('false', $e);

Note: This may not be the desired logic. I'm providing it as an example.

Java Ternary Operator, In this article, I will explain the ternary operator and how to use it in and return the value on the right of the colon if the expression is false. The ternary operator just returns one out of two potential values depending on a condition. What you can do with the ternary operator is, e.g. int a = condition ? 0 : 2 which would assign the variable a value of either 0 or 2 depending on the value of condition .

Make Your Code Cleaner with JavaScript Ternary Operator, The conditional operator ?: , also known as the ternary conditional You can also use the conditional ref expression as a reference return� The general form of the ternary operator is. expression-1 ? expression-2 : expression-3 where expression-1 has type boolean, and expression-2 and expression-3 have the same type 1. In your code, you were using return statements where expressions are required. In Java, a return statement is NOT a valid expression.

Ternary Conditional Operator In TypeScript, Ternary Operator in Python. The ternary operator is used to return a value based on the result of a binary condition. It takes in a binary condition as input, which� While declaring a variable and using an if statement is a fine way to conditionally render a component, sometimes you might want to use a shorter syntax. There are a few ways to inline conditions in JSX, explained below. Inline If with Logical && Operator . You may embed expressions in JSX by wrapping them in curly braces.

?: operator, Since PHP 5.3, it is possible to leave out the middle part of the ternary operator. Expression expr1 ?: expr3 returns expr1 if expr1 evaluates to TRUE , and expr3 otherwise. Note : Please note that the ternary operator is an expression, and that it doesn't evaluate to a variable, but to the result of an expression.

  • I don't think that's the intended outcome from the OP's example. This will return in both cases whereas the OP probably asks how to return just in one of the cases.
  • Right but it doesn't work that way. Something will always be returned with a ternary since it is a statement and cannot be nested in a ternary.
  • Your post does not answers the OP question. You should follow the code sample provided by the OP in its question and fix it. Moreover, this question is old and already has many answers. It seems that the OP forgot to accept one of those. But you can try to provide a better answer by adding documentation about the :? operator.