[juriansluiman]

That's where the coalesce operator ("??") is for. Exactly to suppress the warning and avoid verbose isset() calls:

    echo $foo['a']['b'] ?? 'default_value';

[Udo]

I'm looking forward to this in PHP7. My current workaround, which exists for the same reason as the coalesce operator (https://wiki.php.net/rfc/isset_ternary) is a custom function:

  $v = @first($var1, $var2, 'some-default');

which will simply return the first parameter that has a non-null, non-empty-string value.