(PECL ds >= 1.0.0)
Ds\Sequence::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.
注意:
Values will be compared by value and by type.
示例 #1 Ds\Sequence::find() example
<?php
$sequence = new \Ds\Vector(["a", 1, true]);
var_dump($sequence->find("a")); // 0
var_dump($sequence->find("b")); // false
var_dump($sequence->find("1")); // false
var_dump($sequence->find(1)); // 1
?>以上示例的输出类似于：
int(0) bool(false) bool(false) int(1)