How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?

Question

Based on the examples from this page, I have the working and non-working code samples below.

Working code using if statement:

if (!empty         


        

Answer 1

Quick and short way:

echo $address['street2'] ? : "No";

Here are some interesting examples, with one or more varied conditions.

$color = "blue";

// Condition #1 Show color without specifying variable 
echo $color ? : "Undefined";
echo "
";

// Condition #2
echo $color ? $color : "Undefined";
echo "
";

// Condition #3
echo ($color) ? $color : "Undefined";
echo "
";

// Condition #4
echo ($color == "blue") ? $color : "Undefined";
echo "
";

// Condition #5
echo ($color == "" ? $color : ($color == "blue" ? $color : "Undefined"));
echo "
";

// Condition #6
echo ($color == "blue" ? $color : ($color == "" ? $color : ($color == "" ? $color : "Undefined")));
echo "
";

// Condition #7
echo ($color != "") ? ($color != "" ? ($color == "blue" ? $color : "Undefined") : "Undefined") : "Undefined";
echo "
";