如果数组中的任何项为空/非空，则返回boolean

Question

I have an array of objects. I need to loop over these objects (preferably without foreach(), and if a certain key in the objects is not empty, then return true, otherwise return false.

For example,

$items = array(
    '0' => stdClass {
        name => Ryan
        suppliers => array()
    }
    '1' => stdClass {
        name => Dave
        suppliers => array(
            '0' => stdClass {}
        )
    }
)

Essentially, I need to go through the array and check the "supplier" key of the object, and if any of them are not empty, return true for the entire thing, otherwise return false.

Answer 1

What's wrong with foreach?

$check = function($arr) {
  foreach($arr as $o) {
     if (!empty($o->suppliers)) return true;
  }
  return false;
};

If you want to use it only in one place, use anonymous function

I don't understand why you don't want to use foreach because thing is - foreach is only right way because you leave loop as soon as you find value