private static function returnSameElementIfNotEmpty($item) {
if (empty($item)) {
return false;
}
else{
return true;
}
}
public static function clean($array) {
return array_filter($array, 'returnSameElementIfNotEmpty');
}
When I try running this with a sample array I get:
Warning: array_filter() expects parameter 2 to be a valid callback, function 'returnSameElementIfNotEmpty' not found or invalid function name in C:\Framework\ArrayMethods.php on line 27
Try this:
return array_filter($array, array(__CLASS__, 'returnSameElementIfNotEmpty'));
The error occures because you don't call the class method. But just a function with that name. In the above example I use CLASS as the class type to access the static function returnSameElementIfNotEmpty.
Excellent, in the documentation not mentioned.
array(CLASS, 'returnSameElementIfNotEmpty') solves warning
More elegant:
$ArrModEmpty = array_filter($array, function($Arr){
return (empty($Arr));
});
