PHP - 从返回它的方法调用数组值？

Question

I'm trying to call an array variable directly from a method that returns it. Something like the following:

function some_meth()
{
    return array('var1' => 'var);
}

I know I can do something like this:

$var = some_meth();
$var = $var['var1'];

But I would like to be able to do this in one line, something like this:

$var = some_meth()['var1'];

This returns the error below, which makes sense, but is there a way to do this in one line?

Trying to get property of non-object

Answer 1

In pre-php5.4 this is not possible in a single call. 5.4 on you can accomplish it just like in your example.

From http://docs.php.net/manual/en/language.types.array.php

As of PHP 5.4 it is possible to array dereference the result of a function or method call directly. Before it was only possible using a temporary variable.

<?php
function getArray() {
    return array(1, 2, 3);
}

// on PHP 5.4
$secondElement = getArray()[1];

// previously
$tmp = getArray();
$secondElement = $tmp[1];

// or
list(, $secondElement) = getArray();
?>