数组函数学习六

$arr1=array('a'=>123,123,'124','c'=>'124');
$arr2=array_unique($arr1);
print_r($arr2);Copy

$arr=array('cc','he');
array_unshift($arr,'apple','eat');
print_r($arr);Copy

$arr=array('cc','he');
$arr2=array_values($arr);
print_r($arr2);Copy

$arr1=array(123,4,545,45,656);
arsort($arr1);
print_r($arr1);Copy

$arr1=array(123,4,545,45,656);
asort($arr1);
print_r($arr1);Copy

var_dump(count(null));
var_dump(count(false));Copy

$arr1=array('12','23','45');
var_dump(current($arr1));Copy

$arr1=array('12','23','45');
var_dump(end($arr1));Copy

$arr1=array('12','23','45');
var_dump(in_array(12,$arr1));
var_dump(in_array(12,$arr1,true));Copy

$arr1=array('12','23','45');
var_dump(key($arr1));Copy