PHP函数array_merge函数详解
PHP中合并数组分成两种情况
1、如果这两个数组中有相同的字符串键名:
$book1 = array(linux=>linux服务器配置与管理,php=>PHP程序设计);
$book2 = array(linux=>服务器配置与管理,jsp=>PHP);
$result = array_merge($book1,$book2);
print_r($result);
?>
输出为:
Array ( [linux] => 服务器配置与管理 [php] => PHP程序设计 [jsp] => PHP )
说明,后者将替换前者。但如果使用的是array_merge_recursive()则可保留,并作一个子数组存在。如:
$book1 = array(linux=>linux服务器配置与管理,php=>PHP程序设计);
$book2 = array(linux=>服务器配置与管理,jsp=>PHP);
$result = array_merge_recursive($book1,$book2);
print_r($result);
?>
输出为:
Array ( [linux] => Array ( [0] => linux服务器配置与管理 [1] => 服务器配置与管理 ) [php] => PHP程序设计 [jsp] => PHP )
2、如果这两个数组中有相同的数值键名:
$book1 = array(linux服务器配置与管理,PHP程序设计);
$book2 = array(服务器配置与管理,PHP);
$result = array_merge($book1,$book2);
print_r($result);
?>
结果是:
Array ( [0] => linux服务器配置与管理 [1] => PHP程序设计 [2] => 服务器配置与管理 [3] => PHP )

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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

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),

Dreamweaver CS6
Visual web development tools

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

Atom editor mac version download
The most popular open source editor

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
