If null use other variable in one line in PHP

Question

Is there in PHP something similar to JavaScript\'s:

alert(test || \'Hello\');

So, when test is undefined or null we\'ll see Hello, otherwis

Answer 1

Well, expanding that notation you supplied means you come up with:

if (test) {
    alert(test);
} else {
    alert('Hello');
}

So it's just a simple if...else construct. In PHP, you can shorten simple if...else constructs as something called a 'ternary expression':

alert($test ? $test : 'Hello');

Obviously there is no equivalent to the JS alert function in PHP, but the construct is the same.