How to check whether an array is empty using PHP?

Question

players will either be empty or a comma separated list (or a single value). What is the easiest way to check if it's empty? I'm assuming I can do so as soon as I fetch the $gameresult array into $gamerow? In this case it would probably be more efficient to skip exploding the $playerlist if it's empty, but for the sake of argument, how would I check if an array is empty as well?

$gamerow = mysql_fetch_array($gameresult); $playerlist = explode(",", $gamerow['players']); 

Answer 1

If you just need to check if there are ANY elements in the array

if (empty($playerlist)) {      // list is empty. } 

If you need to clean out empty values before checking (generally done to prevent explodeing weird strings):

foreach ($playerlist as $key => $value) {     if (empty($value)) {        unset($playerlist[$key]);     } } if (empty($playerlist)) {    //empty array }