(PECL ds >= 1.0.0)
Ds\Deque::find — Attempts to find a value's index
Returns the index of the value, or FALSE if not found.
valueThe value to find.
The index of the value, or FALSE if not found.
Note:
Values will be compared by value and by type.
Example #1 Ds\Deque::find() example
<?php
$deque = new \Ds\Deque(["a", 1, true]);
var_dump($deque->find("a")); // 0
var_dump($deque->find("b")); // false
var_dump($deque->find("1")); // false
var_dump($deque->find(1)); // 1
?>
以上例程的输出类似于：
int(0) bool(false) bool(false) int(1)