略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: Ds\Deque::find

2024-11-13

Ds\Deque::find

(PECL ds >= 1.0.0)

Ds\Deque::find Attempts to find a value's index

说明

public Ds\Deque::find(mixed $value): mixed

Returns the index of the value, or false if not found.

参数

value

The value to find.

返回值

The index of the value, or false if not found.

注意:

Values will be compared by value and by type.

范例

示例 #1 Ds\Deque::find() example

<?php
$deque 
= new \Ds\Deque(["a"1true]);

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)
add a noteadd a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址:https://www.php.net/manual/en/ds-deque.find.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3