PHP: assign a variable and test it in the same if statement?

Question

I want to do this:

if ($field = myFunction($node, 'field') && $field['value']) {
  //do something with $field
}

PHPStorm warns that the $ undefined field after && & even if it was just set. Is it just a PHPStorm rough or is there some reason it really shouldn't work?

Answer 1

This is the operator’s priority. Just take a look at http://docs.php.net/manual/en/language.operators.precedence.php

It should be:

if (($field = myFunction($node, 'field')) && $field['value']) {
  //do something with $field
}

work as you expected. In this case, PhpStorm does not warn

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