php join() 函数,phpjoin函数
php join() 函数获取由数组元素组合成的字符串。本文章向码农介绍php join() 函数的使用方法和基本实例,感兴趣的码农可以参考一下。
定义和用法
join() 函数返回由数组元素组合成的字符串。
join() 函数是 implode() 函数的别名。
注释:join() 函数接受两种参数顺序。但是由于历史原因,explode() 是不行的,您必须保证 separator 参数在 string 参数之前才行。
注释:join() 函数的 separator 参数是可选的。但是为了向后兼容,推荐您使用使用两个参数。
语法
<code class="language-php hljs">join(separator,<span class="hljs-keyword">array)</span></code>
参数 | 描述 |
---|---|
separator | 可选。规定数组元素之间放置的内容。默认是 ""(空字符串)。 |
array | 必需。要组合为字符串的数组。 |
技术细节
返回值: | 返回由数组元素组合成的字符串。 |
PHP 版本: | 4+ |
更新日志: | 在 PHP 4.3.0 中,separator 参数变成可选的。 |
实例
用不同的字符分隔数组元素:
<?php $arr = array('Hello','World!','I','love','Shanghai!'); echo join(" ",$arr)."<br>"; echo join("+",$arr)."<br>"; echo join("-",$arr)."<br>"; echo join("X",$arr); ?>
在线运行

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Atom editor mac version download
The most popular open source editor

SublimeText3 Linux new version
SublimeText3 Linux latest version

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),