PHP变量声明速记（类似于JavaScript）

Question

In JavaScript, I can do this:

var somevar = {
    propertyTwo : false,
    propertyThree : "hello!"
}

var test = somevar.propertyOne || somevar.propertyTwo || somevar.propertyThree

alert(test); //displays "hello!"

Is there a similar functionality in PHP for this? Haven't been able to find anything online.

I tried this, but PHP just treats it like a comparison and echo's 1 (true)

$somevar = array(
    'propertyTwo' => false,
    'propertyThree' => "hello!"
);

$test = $somevar['propertyOne'] || $somevar['propertyTwo'] || $somevar['propertyThree'];

echo $test; //displays '1'

Not really a big deal if there isn't, but I figured that with all of the bells and whistles provided in php 5.x, there would be some kind of shorthand for assigning the first true value in a list of values to a single variable like that.

I suppose I could write a function.

EDIT :

As I suspected, PHP doesn't have the same quirk.

Quick function I wrote

function assign_list($list){
foreach($list as $v)
    if(isset($v) && $v) return $v;
return false;
}

Just pass it an array of stuff

Answer 1

The following will work in PHP >= 5.3, but you will still receive a Notice Error because propertyOne is not defined.

<?php
$somevar = array(
    'propertyTwo' => false,
    'propertyThree' => "hello!"
);

$test = $somevar['propertyOne'] ?: $somevar['propertyTwo'] ?: $somevar['propertyThree'];

echo $test; //displays 'hello!'

You could however work around this by supressing the variables, but it is highly unrecommended:

$test = @$somevar['propertyOne'] ?: @$somevar['propertyTwo'] ?: @$somevar['propertyThree'];