PHP多个if else速记错误

$array['something'] ? $a ?$b ? $c : '';

In 3 var there's one have value, and assign it to the array, but It doesn't work.

Are you looking for something like this?

$array['something'] = !empty($a) ? $a : (!empty($b) ? $b : (!empty($c) ? $c : ""));

Only one of $a, $b or $c has a value and assign only that value

Try something like this:

$array['something'] = (($a) ? $a : (($b) ? $b : (($c) ? $c : '')));