CODEWITHSUNDEEP
phpphp-generators
madhukar
madhukar

Reputation: 61

How to replace huge array with PHP generators

Seeking your help to convert one big array with PHP generators. Below is my code for which I need rework: I am getting a result set from a service call and assigning all to an array:

foreach ($objects->result as $pointStdObject) {
  $pointStdObjects[] = $pointStdObject;
}

This piece of code is inside a while loop which queries for records with an offset of 1000. Issue is $pointStdObjects[] tends to get very huge and I get PHP out of memory exception.

Later I again need to use this same array as:

foreach ($pointStdObjects as $pointStdObject) {
  $point = $this->pointFactory->createPointFromStdObject($pointStdObject);
  if (!$point) {
    continue;
  }
  $points[] = $point;
}
return $points;

Please suggest if we can leverage PHP generators or yield here

Upvotes: 1

Views: 571

Answers (1)

matek997
matek997

Reputation: 351

function getStd()
{
   ///your code before that
    foreach ($objects->result as $pointStdObject) {
        yield $pointStdObject;
    }
}

function useStd()
{
    foreach (getStd() as $pointStdObject) {
        $point = $this->pointFactory->createPointFromStdObject($pointStdObject);
        if (!$point) {
            continue;
        }
        $points[] = $point;
    }
    return $points;
}

Upvotes: 2

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