Chapter 1 LAMP overview and PHP application 1. abbreviation: LAMP = (Linux + Apache + MySql + PHP) (OS + WebAapp + DB + background script) 2. q: How does LAMP work? A: Domain name-& gt; DNS-& gt; IP: 80-& gt; (Linux, Unix (hp-UX, Chapter 1, section 1/3 LAMP overview, and PHP usage)
1. abbreviation: LAMP = (Linux + Apache + MySql + PHP) (OS + WebAapp + DB + background script)
2. Q: How does LAMP work?
A: Domain name->
DNS>
IP: 80->
(Linux, Unix (hp-UX, Solaris OpenBSD), Microsoft Windows macOS OS X->
Server (apache iis pws)->
Index. php->
Databases: MySQL, Oracle, Informix, Sybase, ms SQL Server, PostgreSql->
Foreground language->
Client->
Browser explanation
3. Q: What can PHP do?
A: In Unix and Linux environments, you can directly use the command interpreter PHP program and desktop program (rarely used) in special Windows scenarios)
4. Why is PHP selected?
A: PHP is almost half of Java's development time.
PHP is interpreted, Java is compiled, so PHP is not running as fast as Java
However, PHP can improve the running efficiency through static optimization.
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