Ds\Sequence::contains

(PECL ds >= 1.0.0)

Ds\Sequence::containsDetermines if the sequence contains given values

说明

abstract public Ds\Sequence::contains ( mixed ...$values ) : bool

Determines if the sequence contains all values.

参数

values

Values to check.

返回值

false if any of the provided values are not in the sequence, true otherwise.

范例

Example #1 Ds\Sequence::contains() example

<?php
$sequence 
= new \Ds\Vector(['a''b''c'123]);

var_dump($sequence->contains('a'));                // true
var_dump($sequence->contains('a''b'));           // true
var_dump($sequence->contains('c''d'));           // false

var_dump($sequence->contains(...['c''b''a'])); // true

// Always strict
var_dump($sequence->contains(1));                  // true
var_dump($sequence->contains('1'));                // false

var_dump($sequece->contains(...[]));               // true
?>

以上例程的输出类似于:

bool(true)
bool(true)
bool(false)
bool(true)
bool(true)
bool(false)
bool(true)

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