(PECL ds >= 1.0.0)
Ds\Vector::contains — Determines if the vector contains given values
valuesValues to check.
false if any of the provided values are not in the
vector, true otherwise.
示例 #1 Ds\Vector::contains() example
<?php
$vector = new \Ds\Vector(['a', 'b', 'c', 1, 2, 3]);
var_dump($vector->contains('a')); // true
var_dump($vector->contains('a', 'b')); // true
var_dump($vector->contains('c', 'd')); // false
var_dump($vector->contains(...['c', 'b', 'a'])); // true
// Always strict
var_dump($vector->contains(1)); // true
var_dump($vector->contains('1')); // false
var_dump($sequece->contains(...[])); // true
?>以上示例的输出类似于：
bool(true) bool(true) bool(false) bool(true) bool(true) bool(false) bool(true)