public static function isAssoc($array)
{
return array_keys($array) !== range(0, count($array) - 1);
}
public function testIsAssoc() { isFalse(Arr::isAssoc(array('a', 'b', 'c'))); isFalse(Arr::isAssoc(array("0" => 'a', "1" => 'b', "2" => 'c'))); isTrue(Arr::isAssoc(array("1" => 'a', "0" => 'b', "2" => 'c'))); isTrue(Arr::isAssoc(array("a" => 'a', "b" => 'b', "c" => 'c'))); }