Proposed short logical assignment operator

examples.php

<?php

$foo = null;

// If's - verbose and uneccassry
if (! $foo) {
    $foo = 'default';
}

// Short Ternary syntax
$foo = $foo ?: 'default';

// Long Operator syntax (see, this is nothing new or alien to PHP, but still writing $foo twice)
$foo || $foo = 'default';

// Proposed Short Operator syntax (Ruby Style - Consistency issues raised, as all 
// PHP assignment operators are formed as <op>= and equate to $x = $x <op> $y, while this is $x = $x <op> $y)
$foo ||= "default";

// Proposed Short Operator syntax (Avoids the issue by moving the operator to avoid confusion with other <op>=)
$foo =|| "default";