How to check whether an array is empty using PHP?

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If you just need to check if there are ANY elements in the array, you can use either the array itself, due to PHP’s loose typing, or – if you prefer a stricter approach – use count():

if (!$playerlist) {
     // list is empty.
}
if (count($playerlist) === 0) {
     // list is empty.
}

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

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

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