if语句中的多个或运算符条件

Question

i want to show some text if condition is true like this

    if ($imageurl=="" OR ($w != "1920" AND $h != "1080") OR ($w != "1440" AND $h != "900") OR ($w != "1366" AND $h != "768") OR ($w != "1280" AND $h != "1024") OR ($w != "1280" AND $h != "800") OR ($w != "1024" AND $h != "768") OR ($w != "800" AND $h != "600") OR ($w != "360" AND $h != "640")) 

{
   text to print   
}

$w = width $h = height

Please tell me how to correct above condition

Answer 1

Or you can do this:

$sizes = array (
          '1920x1080',
          '1440x900',
          '1366x768',
          '1280x1024',
          '1280x800',
          '1024x768',
          '800x600',
          '360x640');

if (empty($imageurl) || !in_array($w.'x'.$h, $sizes, true))
{
  echo 'error';
}