$switching = array( 10, // key = 0
5 => 6,
3 => 7,
'a' => 4,
11, // key = 6 (maximum of integer-indices was 5)
'8' => 2, // key = 8 (integer!)
'02' => 77, // key = '02'
0 => 12 // the value 10 will be overwritten by 12
);
var_dump($switching);
输出如下：
array (size=7)
0 => int 12
5 => int 6
3 => int 7
'a' => int 4
6 => int 11
8 => int 2
'02' => int 77
