为什么这样的东西在php中无效？ [重复]

This question already has an answer here:

Using return in ternary operator 7 answers

I was recently refactoring. And thought this would awesome. But is not allowed.

<?php


function(){

  doSomething() && return true;
}

</div>

Because return is a statement and cannot be used as part of an expression. An expression is something that returns/results in a value. return doesn't result in any value, but operands to && must result in a value for the && expression to be evaluable.