[Solved] Convert JavaScript for loop to php [closed]

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It seems that you have missed out the assignment operator in the PHP version of the script.

Code snippet with the changes made

function calcZoom($accuracy) {
  for ($n = 10, $o = 2; $n * 320 > $accuracy; ) {
    $n /= 2;
    $o++;
  }
  return min(16, $o);
}

Code walkthrough:

Since the statement was $n / 2 the value of the variable did not change.

Changing it to an $n /= 2 assigned the value to the variable and thus fixed your issue.

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solved Convert JavaScript for loop to php [closed]