(PECL ds >= 1.0.0)
Ds\Deque::insert — Inserts values at a given index
Inserts values into the deque at a given index.
index
The index at which to insert. 0 <= index <= count
注意:
You can insert at the index equal to the number of values.
valuesThe value or values to insert.
没有返回值。
OutOfRangeException if the index is not valid.
示例 #1 Ds\Deque::insert() example
<?php
$deque = new \Ds\Deque();
$deque->insert(0, "e"); // [e]
$deque->insert(1, "f"); // [e, f]
$deque->insert(2, "g"); // [e, f, g]
$deque->insert(0, "a", "b"); // [a, b, e, f, g]
$deque->insert(2, ...["c", "d"]); // [a, b, c, d, e, f, g]
var_dump($deque);
?>以上示例的输出类似于：
object(Ds\Deque)#1 (7) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "c"
[3]=>
string(1) "d"
[4]=>
string(1) "e"
[5]=>
string(1) "f"
[6]=>
string(1) "g"
}